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IPCC report: how humans are changing the climate

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Climate change is real, it's happening and the risks are many and rising, so says the Intergovernmental Panel of Climate Change in its latest report. Follow our live coverage below.

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Death, injury and disrupted livelihoods

Dr Fiona Johnson explains what the IPCC report on climate change means for Australia and its environment.

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People exercise in Rio de Janeiro in the hottest January on record in parts of Brazil.

People exercise in Rio de Janeiro in the hottest January on record in parts of Brazil. Photo: Reuters

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  • You're quite right there, Sarina.

    Commenter
    Pat
    Location
    Melbourne
    Date and time
    April 07, 2014, 8:46AM
    • We will cope with the change, we wont change. We are human, we only ever do anything when there is a direct benefit or immediate threat. I work in the car industry, the car industry is a major polluter, shut that down and I don't have a job, I don't have a roof over my children's head. We will be a direct victim of climate change. I would rather we keep going until my house is finally located on the new coast line and then retire with an ocean view.
      Before anyone replies to this post, think.....Do you really believe that we will do anything. Do you really think China, India the US will do anything? If you say no believe me, you will rest easier.

      Commenter
      TheGimp
      Location
      Perth
      Date and time
      April 02, 2014, 10:59PM
      • Goodness we can't get plastic bags banished, or bottles recycled. What hope have we got to change, the pollution we produce.

        Commenter
        Diisappointed
        Location
        NSW
        Date and time
        April 01, 2014, 8:32AM
        • With respect.. can someone please tell me why this newspaper and their associate newspapers give one side of the story only? There is eveidence that the earth has gone from warming to cooling and is expected to continue to be cooling. See the website below from a Professor giving all of the FACTS (and not just emotive words) that the earth is cooling. How can the human race be blamed when carbon dioxide levels are increasing but the earth is cooling? Please tell the facts (at least both sides of tghe story).. Look at http://www.globalresearch.ca/global-cooling-is-here/10783

          Commenter
          Mark
          Date and time
          March 31, 2014, 9:17PM
          • Sorry unless that reputable Climate change expert, Andrew Bolt says Climate change is real I can not believe it. Andrew Bolt is known to research anything he writes about and report factually. Oh wait that's right A judge found different when he wrote about fair skinned
            Aborigines. Maybe these other Scientists know their stuff.

            Commenter
            King Tony ruler of Australia
            Date and time
            March 31, 2014, 8:26PM
            • I realise that China is making a lot of promises to clean up by 2017 but they are famous for setting and then not achieving such goals - I watch in anticipation. If they make the cuts necessary, China will have a huge unemployment problem which their government does not support financially.

              Commenter
              If Only
              Location
              Melbourne
              Date and time
              March 31, 2014, 6:50PM
              • Science is not my religion and so i do not have any faith in whatever they predict .If Sience was my religion i'll go and goin the church of Sientology.

                Commenter
                Benson
                Location
                Melbourne
                Date and time
                March 31, 2014, 2:51PM
                • the last ipcc report that there had been no global warming for 17 years!!! It must be time for their funding increase!! Their are eminent scientists on both side of the debate, so the science is NOT settled. Why are their so people wanting to believe this climate change scam and throw away $$ on it. I think the needy the homeless the elderly are where the dollars should be spent. NOT on the the climate change SCAM!!!

                  Commenter
                  timesup
                  Date and time
                  March 31, 2014, 2:50PM
                  • So if the science is not settled, how can you claim it's a scam.

                    The problem for you is that the science IS pretty much settled.

                    Commenter
                    stevek
                    Location
                    Sydney
                    Date and time
                    March 31, 2014, 3:51PM
                • Can someone please explain Greg Hunts thesis on why Australia should put a price on carbon pollution? Was this document a lie or is his apparent backflip once in government a lie????

                  Commenter
                  Answers please
                  Date and time
                  March 31, 2014, 2:48PM
                  • I just love how Fairfax won't publish comments critical of the IPCC and climate alarmism.

                    Says much about their commitment to free speech.

                    Commenter
                    Jay Santos
                    Date and time
                    March 31, 2014, 1:23PM
                    • And the fact that Jay Santos gets his insults published actually disproves his own point.

                      Commenter
                      Greg Platt
                      Location
                      Brunswick
                      Date and time
                      March 31, 2014, 1:53PM
                    • Jay, hold off on the conspiracy theories. They have limited staff, sometimes it takes them a few hours or in some cases a day or two for my generally bleeding-heart Leftie, climate change believing comments to get published.

                      Commenter
                      Richard
                      Location
                      Melbourne
                      Date and time
                      March 31, 2014, 1:57PM
                    • Ah you and Hacka, just happy to watch us all fry while you deny! Have you ever heard of risk management?

                      Commenter
                      Coastal Kate
                      Location
                      Central Coast
                      Date and time
                      March 31, 2014, 2:04PM
                  • Has anyone else been to China lately? Did you check out the air pollution there?Whilst we can all put forward our views and suggestions, any change to the way we use energy here in Australia will not save us. The greatest polluters have no intention of reducing their output because they need their industry to survive. The reaction to global warming is not, unfortunately, global. Good luck with trying to make any difference by changing our meagre contribution.

                    Commenter
                    If Only
                    Location
                    Melbourne
                    Date and time
                    March 31, 2014, 1:15PM
                      • Best you read up on what China is doing to combat pollution and CC.
                        It's up to all of us and that means you and I too.

                        Commenter
                        A country gal
                        Date and time
                        March 31, 2014, 1:38PM
                      • I suggest you do some reading before posting. China are leading the way in reductions. Obviously they have a long way to go but so far their efforts are making Australia look like a bunch of rednecks with our heads buried in the sand.

                        Commenter
                        Get Real
                        Date and time
                        March 31, 2014, 1:44PM
                      • @If Only is making a coujple of fundamental mistakes:

                        1. That China is doing nothing. In fact, China is taking far stronger climate change mitigation action than most countries. It should do more, but you can't say it's doing nothing.

                        2. That, if other countries are doing little or nothing, then Australia should do nothing. The problem here is that Australia's actions affect the stance of other countries. Australia is one of the world's worst per capita emitters and the absolute worse per capita emitter amongst advanced countries. Only a couple of Gulf sheikdoms are worse.

                        The recalcritance of Australian representatives at climate change talks has been a signficant barrier to getting more countries to support effective mitigation action. By refusing to take even a proportional reduction in carbon emissions, let alone the leading role that would be appropriate for the worst per capita emitter in the developed world, successive Australian governments have been major impediments to reaching international agreement.

                        If we can force the Australian government to take climate change seriously and take effective action to limit and then decrease Australian emissions, that will help make international agreement easer to achieve.

                        It happens to be an emergency. And Abbott fiddles while the world burns.

                        Commenter
                        Greg Platt
                        Location
                        Brunswick
                        Date and time
                        March 31, 2014, 1:52PM
                      • If we use the convenient argument that our economy and output are too small to make a difference, we give the green light to every other economy our size and smaller to take exactlythe same stance. Add all those up and then measure the impact

                        Commenter
                        Frank68
                        Date and time
                        March 31, 2014, 2:10PM
                    • Maybe we should wait until our science minister has had a chance to review the document before we all comment half cocked.......Oh that's right we got rid of him didn't we. Maybe wait for the climate change commission.....Oh forgot that is gone. Ah well we will have to wait for the Minster for women and Aboriginal affairs to read the report, lets hope he does a better job than last time he was supposed to have read a report!

                      Commenter
                      Get Real
                      Date and time
                      March 31, 2014, 1:10PM
                      • IF the biblical Noah only new, that all he had to do to stop the climate from changing, and prevent the flood was only to bring in a carbon tax .

                        Commenter
                        Benson
                        Location
                        Melbourne
                        Date and time
                        March 31, 2014, 12:51PM
                        • Idiot post. This is a critical issue, not one appropriate for sarcasm.

                          I suspect you won't be such a smart arse in a few years.

                          Commenter
                          Rory Ross
                          Location
                          Glen Iris
                          Date and time
                          March 31, 2014, 12:57PM
                        • If only Benson had enough scientific understanding to realise that Noah is a mythical figure, emerging from the traditions of the ancient Hebrews, who at the time didn't even have the science to undestand the world was round, let alone that rain couldn't raise global sea levels by a few thousand metres in 40 days and 40 nights.

                          Benson should stop mocking scientists and start paying attention to what they're saying. There is room for debating the best road forward for greenhouse abatement, but the time for debating whether climate change is happening is well past.

                          Commenter
                          Greg Platt
                          Location
                          Brunswick
                          Date and time
                          March 31, 2014, 1:38PM
                        • yes Benson. The carbon tax has changed the planet forever (with no change to emissions) A sick joke tax

                          Commenter
                          timesup
                          Date and time
                          March 31, 2014, 2:52PM
                      • As pointed out by Mad Magazine - when Aussies have to go to Alice Spings to see the Penguin Parade - possibly the calibre of the problem will sink in at that time. Until then; the masses simply don't care. It is someone elses problem.

                        Commenter
                        typical Aussie
                        Location
                        Australia
                        Date and time
                        March 31, 2014, 12:51PM
                        • funny how the green deniers, deny anyone else having an opinion - Sick of the thought police and free speech police.

                          Commenter
                          Sarina
                          Location
                          Yarra Valley Sea
                          Date and time
                          March 31, 2014, 12:50PM
                          • The problem is your opinions are not based on any sort of evidence just snippets picked up from the popular press. So they are extremist in the scientific sense and irrelevant.

                            You have stalled us from action for too long.

                            Get out of our way!

                            Commenter
                            Rory Ross
                            Location
                            Glen Iris
                            Date and time
                            March 31, 2014, 1:02PM
                          • I suppose if the deniers had some substance to their argument rather than "Climate change is crap" Logical people would listen to their side.

                            Commenter
                            Get Real
                            Date and time
                            March 31, 2014, 1:03PM
                          • @Sarina: This is the typical straw opponent argument. We don't deny anyone else having an opinion. We just demand that, if you want to have an opinion concering a scientific issue, your opinion doesn't deny known facts and has some reasonable connection with the science. And we're not calling for censorship of dissentng views - just for others to recognise rubbish when it's written and to call it.

                            If you want to see "thought police and free speech police" in action, I suggest listening to some commercial talk-back radio or reading the papers of certain Right wing media moguls. The Fairfax newspapers have their faults, but I'll take them above their competitors any day of the week.

                            Commenter
                            Greg Platt
                            Location
                            Brunswick
                            Date and time
                            March 31, 2014, 1:26PM
                        • Thank god for Gillard for exporting 220 million tons of coal each year, driving foreign pollution and local industry broke through the Carbon Tax. Suggest it points towards an ice age here is Australia

                          Commenter
                          Sarina
                          Location
                          Yarra Valley Sea
                          Date and time
                          March 31, 2014, 12:43PM
                            • Amazingly the luvvies still blame Gillard all the while burying their heads in the sand!

                              Commenter
                              Get Real
                              Date and time
                              March 31, 2014, 12:57PM
                            • Yeah you're so right. I blame her for Australia losing the 20-20 cricket too and for MH370 going missing.

                              Thank god Abbott has stopped coal exports. That man can walk on water.

                              Commenter
                              zoetrope
                              Location
                              Sydney
                              Date and time
                              March 31, 2014, 1:10PM
                          • So globally, the temperature observations have been stable for at least 15 years. Which is about the same period of time that temperatures increased (up to 1997) for prompting this global warming alarm. The projections of 2 degrees or whatever were/are predicated on the temps continuing to increase. How much further from reality can the IPCC go? Richard Tol is to be congratulated for telling it like it is, not like they'd like it to be.

                            Commenter
                            CheckedTheData
                            Date and time
                            March 31, 2014, 12:32PM
                            • Yeah? Well read Peter's 12:32PM post.

                              Commenter
                              stevek
                              Location
                              Sydney
                              Date and time
                              March 31, 2014, 12:40PM
                            • Checked water temperature lately?
                              Arctic ice ?
                              Extreme weather

                              etc etc.

                              If you don't understand don't post!

                              Commenter
                              Rory Ross
                              Location
                              Glen Iris
                              Date and time
                              March 31, 2014, 12:48PM
                            • Looks like you only 'checked the facts' that fitted into your narrow view of the science. I am constantly astounded at the legths a vocal and tiny minority of 'flat earthers' will go in their attempts to deny the science and disrupt the debate about climate change

                              Commenter
                              Cliff
                              Date and time
                              March 31, 2014, 12:59PM
                            • Global mean surface temp records in ascending order occurred in:

                              1998
                              2005
                              2010

                              Thus, it has warmed in the last 15 years.

                              Commenter
                              greenveggie
                              Date and time
                              March 31, 2014, 1:40PM
                            • Gee whiz, be careful not to upset Rory

                              Commenter
                              harvey
                              Date and time
                              March 31, 2014, 1:59PM
                            • the last ipcc report that there had been no global warming for 17 years!!! It must be time for their funding increase!!

                              Commenter
                              timesup
                              Date and time
                              March 31, 2014, 2:54PM
                          • Think I'll take the time to read the report.

                            Commenter
                            Jump
                            Date and time
                            March 31, 2014, 12:28PM
                            • Sorry that i've mispelled aeroplanes, but clive Palmer tought me how to spell.

                              Commenter
                              Benson
                              Location
                              Melbourne
                              Date and time
                              March 31, 2014, 2:34PM
                          • Considering that greed and corruption rule our world, all I can say is....it's been nice knowing you all. Even reincarnation isn't going to fix this mess, so if such a thing ever existed, it's useless now. Of course you could always reincarnate on another planet...shame we don't know of any others that support human life. Even if we did, human "progress" would destroy it too.

                            Commenter
                            PaxUs
                            Location
                            Austerelia
                            Date and time
                            March 31, 2014, 12:19PM
                            • Looks like a major author of the report thinks it's too alarmist. This poor chap will no doubt be the new target of the Hate Mob. Fancy him speaking up and protesting by not putting his name to the report.

                              Commenter
                              enough is enough
                              Date and time
                              March 31, 2014, 12:11PM
                              • That 'author' is also a vocal climate change skeptic. Of course it wouldn't be good for his career at the Climate Policy Institute (a skeptical institute that probably doesn't do much 'real' science) if he were to sign off on an IPCC document warning against climate change....

                                Commenter
                                Scienterrific
                                Location
                                Brisbane
                                Date and time
                                March 31, 2014, 12:20PM
                              • I'm pretty sure the hate mob would support his decision. You know, the people who make death threats to climate scientists.

                                Commenter
                                Nathan
                                Date and time
                                March 31, 2014, 12:28PM
                              • ..I assume you are referring to Richard Tol and the impact on GDP. Fancy you being among waving the flag for the denialists and trying to use this to support your POV. Who among us would have thought? It's early days yet and there are still all those Assessment Reports.

                                The question remains than when assessing worst case is it better to over-or underestimate the risk?

                                Commenter
                                stevek
                                Location
                                Sydney
                                Date and time
                                March 31, 2014, 12:34PM
                              • Taking the kids to the Barrier Reef this year....best see it now!!!

                                Where will our kids holiday with their kids in 30 years time?

                                Limited options;too hot, too dry, to dangerous too many people.

                                Crikey we have made a mess of this planet.

                                Commenter
                                Rory Ross
                                Location
                                Glen Iris
                                Date and time
                                March 31, 2014, 12:38PM
                              • The report author who reckons the report is too alarmist is an economist, whereas all the authors who are telling it like it is are scientists.

                                Commenter
                                David Arthur
                                Location
                                Queensland
                                Date and time
                                March 31, 2014, 12:40PM
                              • We all know about Flannery's frank and fearless predictions of doom and gloom. Look where it got him, fishing from his waterfront property.

                                Commenter
                                enough is enough
                                Date and time
                                March 31, 2014, 12:43PM
                            • Of course we can plead ignorance, have you looked at our government ?

                              Commenter
                              davros
                              Date and time
                              March 31, 2014, 12:09PM
                              • Not my government, davros. I didn't vote for them.

                                Commenter
                                Jump
                                Date and time
                                March 31, 2014, 12:17PM
                              • Yeah, it's a worry when shorten wants to throw more billions at gm to build filthy v8s for the american market.

                                Thank goodness for union bosses in leftist governments and corporate socialism is all I can say.

                                Commenter
                                Alex
                                Location
                                Finley
                                Date and time
                                March 31, 2014, 12:24PM
                              • @Alex: that's the most ridiculous strawman argument I've ever read. Where's the evidence that Shorten wants to support GM building V8s "for the American market"? I thought he was just trying to keep the automobile industry in Australia going to preserve jobs .

                                Commenter
                                stevek
                                Location
                                Sydney
                                Date and time
                                March 31, 2014, 12:53PM
                              • @stevek, you must have missed the memo this government isn't about saving jobs. It is all cut, deflect and lie.

                                Commenter
                                Get Real
                                Date and time
                                March 31, 2014, 1:06PM
                              • @steve

                                general motors decides what to spend its corporate welfare on- guzzlers for the nation that burns up more resources than any other is what gm Aus aimed at.

                                The fact that you can justify v8 construction for the yanks as job protection shows just how deep the sickness is with you lot.

                                You entitled luvvies are making the co2 problem worse for the globe. Industries come and go but keeping redundant industries on life support so it can build guzzlers for petrol heads is not helping anyone.

                                You imagine you see the big green picture when in reality obama and shorten only see the union picture.

                                Commenter
                                Alex
                                Location
                                Finley
                                Date and time
                                March 31, 2014, 1:09PM
                              • Jump, While I understand the sentiment they're ours whether we like it or not. I'm firmly in the not camp, didn't vote for them either.

                                Commenter
                                davros
                                Date and time
                                March 31, 2014, 1:33PM
                            • It's too late for Australia. We've had two years of record heat and we've voted in an ideologically driven, science-hating bunch of emotionally-retarded hatemongers. Just get out while you can.

                              Commenter
                              Hanrahan
                              Date and time
                              March 31, 2014, 12:08PM
                              • What a load of rubish. Science has been trying to change the climate for many decades, by using the method of cloud seeding from airoplanes to try and make it rain, , but they could never make it rain.
                                The IPCC are nothing more than crowed of alarmists.
                                If they are that conerned about all that gloom and doom results that they keep getting from their computer modeling. Then i suggest that they should get rid of their computers and the gloom and doom concerning global warming ,will be over.
                                But if the IPCC do that, the only problem is tha they will be out of a job.
                                IPCC GET A LIFE.

                                Commenter
                                Benson
                                Location
                                Melbourne
                                Date and time
                                March 31, 2014, 12:03PM
                                • Someone seems like having their head in the sand is making them angry.

                                  Commenter
                                  Fotografa
                                  Location
                                  Darlinghurst
                                  Date and time
                                  March 31, 2014, 12:18PM
                                • I'm sorry... please tell us again how many years have you spent studying science?

                                  I love it how you think you know better than the world's leading scientists. Who needs the CSIRO when we have people like you!

                                  Commenter
                                  Scienterrific
                                  Location
                                  Brisbane
                                  Date and time
                                  March 31, 2014, 12:18PM
                                • Aeroplanes.

                                  Commenter
                                  Jump
                                  Date and time
                                  March 31, 2014, 12:21PM
                                • @Benson, who reckons it's a "load of rubish (sic)": science hasn't been trying to change the climate, it is through science that we understand how what we are doing is forcing the climate to change.

                                  Given what the science compels us to understand, Benson, it would be quite imprudent to not change how we do things.

                                  Commenter
                                  David Arthur
                                  Location
                                  Queensland
                                  Date and time
                                  March 31, 2014, 12:45PM
                              • and we have a govt. that sacks climate change staff, dumps waste on barirer reef, rewards coal and miners with subsidies and no help for new clean energy research or development and sacks CSIRO staff who are paid to research new and better ways, sells off prime ag land which used to grow food but now used for fracking, CSG or housing urban sprawl.

                                Commenter
                                truth
                                Date and time
                                March 31, 2014, 12:00PM
                                • Who would blame a government that sacks the climate change staff ,whene their climat change commissioner was that idiotic alarmist of evey year Tim Flannery.
                                  The rest of your complaints have no proven basis.

                                  Commenter
                                  Benson
                                  Location
                                  Melborne
                                  Date and time
                                  March 31, 2014, 12:12PM
                              • Australia's contribution to this:
                                1. No science minister
                                2. Remove price on carbon
                                "We can no longer plead ignorance" ... but can we plead Gross Stupidity?

                                Commenter
                                Alistair
                                Date and time
                                March 31, 2014, 11:59AM
                                • If I was a climate change believer there is a new movie Iwill never go to see. And that movie is called Noah strring Russel Crow. Because if the climate is really changing it will be for the same reasone as Noah.
                                  But relax that cenerio is never going to happen again, thats why God created the rainbow ,As a sign of his covenant with mankind.
                                  Ive alwys wondered why the colours of the rainbows are always the same and always in the same order.

                                  Commenter
                                  Benson
                                  Location
                                  Melbourne
                                  Date and time
                                  March 31, 2014, 12:46PM
                                • Australia will be the cleanst country in the world very soon thanks to to useless carbon tax , because all of our industries are shutting down here in Australia and they are moving offshore,
                                  Yep, the carbon tax is working all right . and so are centere link with all the people lining up for the dole ,because they've lost their job.

                                  Commenter
                                  Benson
                                  Location
                                  Melbourne
                                  Date and time
                                  March 31, 2014, 2:31PM
                                • gross stupidity IS a carbon tax that does nothing to reduce emissions and greatly impairs busines, jobs and the economy

                                  Commenter
                                  timesup
                                  Date and time
                                  March 31, 2014, 3:32PM
                                • “Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”
                                  ― Albert Einstein

                                  "Damn you all, I told you so."

                                  HG Wells

                                  Commenter
                                  Rx
                                  Date and time
                                  March 31, 2014, 3:33PM
                              • Quick Tony, Greg Hunt needs to hurriedly fortify the Green army with shovels, watering cans and 100 million trees----there is no time to waste. Just think Greg if you do a really stirling job there might be a Sir in it for you....Sir Greg Hunt CO2 Slayer!

                                Commenter
                                The Visionless Quarter
                                Date and time
                                March 31, 2014, 11:54AM
                                • He's up to his neck painting signs ...'Clean Fill Wanted' because they worked out we don't have enough arable land for this loony LNP policy.

                                  Commenter
                                  MP
                                  Date and time
                                  March 31, 2014, 12:30PM
                              • Help! Quick! Ring Alan Jones he'll fix it and if anyone dares calling him a idiot we'll let Andrew Bolt loose on them.

                                Commenter
                                RTP
                                Location
                                Sawtell
                                Date and time
                                March 31, 2014, 11:35AM
                                • And then we can get billy shorten to give more money to gm so that the globe can keep burning oil.

                                  Oh labor- you really aren't an alternative in way shape or form.

                                  Commenter
                                  Alex
                                  Location
                                  Finley
                                  Date and time
                                  March 31, 2014, 12:25PM
                                • So Alex I would love the hear your take on Direct Action, also feel free to comment on Abbott's new highways of the future. Don't trip over the hypocrisy on the way out will you!!!

                                  Commenter
                                  Get Real
                                  Date and time
                                  March 31, 2014, 1:01PM
                              • Hasn't the 4 degree estimate of temperature increases by 2100 -unon which this report is based - been discounted by most sensible commentators ?

                                Commenter
                                Hacka
                                Location
                                Canberra
                                Date and time
                                March 31, 2014, 11:29AM
                                  • Depends on your definition of sensible

                                    Commenter
                                    arbuthnot
                                    Date and time
                                    March 31, 2014, 11:38AM
                                  • Hacka - I seem to remember that you think climate change is a left wing conspiracy. Nothing in all your past comments would indicate that you would even know what a sensible commentator would say.

                                    Commenter
                                    Benny
                                    Date and time
                                    March 31, 2014, 11:49AM
                                  • Hi Hacka. You (and Tony) can keep denying all you like. You are truly in the (extreme) minority.

                                    http://www.businessinsider.com.au/the-scientific-debate-on-global-warming-in-one-chart-2014-3

                                    Commenter
                                    Up and up and up
                                    Date and time
                                    March 31, 2014, 11:52AM
                                  • No it hasn't actually!!!

                                    Commenter
                                    Lesm
                                    Location
                                    Balmain
                                    Date and time
                                    March 31, 2014, 11:59AM
                                  • Good old Hacka... never let the truth get in the way of biased trolling comment.

                                    Commenter
                                    Fotografa
                                    Location
                                    Darlinghurst
                                    Date and time
                                    March 31, 2014, 12:17PM
                                  • Hacka. Head. Sand. And dig a hole for the Mad Monk too !!!

                                    Commenter
                                    MP
                                    Date and time
                                    March 31, 2014, 12:23PM
                                  • No Benny - quite happy to accept man made climate change - just not the hysteria that goes with it, such as this latest IPCC attempt to scare all the kiddies.

                                    Perhaps it should be titled "the boy who cried wolf".

                                    Up x 3 - there is a far greater degree of skepticism these days. In fact two thirds of Aussies now reject the carbon tax.

                                    Commenter
                                    Hacka
                                    Location
                                    Canberra
                                    Date and time
                                    March 31, 2014, 12:26PM
                                  • "most sensible commentators"
                                    Classic 'sow the seds of doubt' tactic among the uninformed. Heartland Institute 101.
                                    Sorry hacka - we tend to be imnformed types in this forum

                                    Commenter
                                    drovers cat
                                    Location
                                    an alleyway
                                    Date and time
                                    March 31, 2014, 12:30PM
                                  • yep - have to question the science and forecasts given they've only been measuring things for 100 years and the earth is 7 billion years old.Might want to have a larger sample size - these reports are way way alarmist and don't factor in the huge yellow mass of fusion that wakes us up every day.

                                    Commenter
                                    Sarina
                                    Location
                                    Yarra Valley Sea
                                    Date and time
                                    March 31, 2014, 12:48PM
                                  • @Hacka: the commentators who have "discounted" the 4 deg C estimates are not in any way sensible; I'd suggest, on the other hand, that they would seem to be somewhat imprudent.

                                    You see, HAcka, here's what we've known for some decades:

                                    The sun warms earth with energy, primarily between wavelengths of 0.1 and 4 microns.

                                    Earth dissipates energy to space, primarily between wavelengths of 4 and 40 microns.

                                    Greenhouse gases disrupt transmission of the latter, not the former.

                                    If earth dissipates more energy to space than it receives from the sun, it cools down; if earth dissipates less energy to space than it receives from the sun, it warms up.

                                    Humans have increased and are continuing to increase the atmosphere's greenhouse gas content, which is unavoidably increasingly disruptive of transmission of energy from earth to space.

                                    That is, it is not even possible that human-driven climate change isn't occurring.

                                    Commenter
                                    David Arthur
                                    Location
                                    Queensland
                                    Date and time
                                    March 31, 2014, 12:48PM
                                  • @Hacka same dribble from the same dribbler. Yawn

                                    Commenter
                                    AdrianL
                                    Location
                                    Brisbane
                                    Date and time
                                    March 31, 2014, 1:01PM
                                  • David - i don't disagree with you about man made climate change, but here's the problem - the IPCC claim "13 out of 14" of the hottest years on record .

                                    But even Pachauri acknowledges we've had no recorded heating of the planet in 17 years:

                                    http://www.forbes.com/sites/jamestaylor/2013/09/26/as-its-global-warming-narrative-unravels-the-ipcc-is-in-damage-control-mode/

                                    Yet we get these continuing doomsday predictions.

                                    So how does the IPCC reconcile these two inconsistent "facts" ?

                                    Commenter
                                    Hacka
                                    Location
                                    Canberra
                                    Date and time
                                    March 31, 2014, 1:14PM
                                  • So let me get this right Hacka,

                                    You are sourcing your "facts" on climate change from a business magazine one of whose principal advertisers are the fossil fuel industry and which draws on no scientific literature, but on other commentary by other newspapers and magazines. So presumably you get your "facts" on salmonella in eggs from the egg producers monthly?????

                                    Commenter
                                    Lesm
                                    Location
                                    Balmain
                                    Date and time
                                    March 31, 2014, 1:47PM
                                  • Lesm - nice try, but it is a real dilemma for the IPCC - plenty of conflicting evidence, yet it seems they only choose the worst case ones upon which to base their recommendations.

                                    Not exactly best scientific practice, which is probably why their conclusions aren't being taken as seriously as maybe they might.

                                    Commenter
                                    Hacka
                                    Location
                                    Canberra
                                    Date and time
                                    March 31, 2014, 3:48PM
                                  • Hacks is that you Andrew Bolt?

                                    Commenter
                                    King Tony ruler of Australia
                                    Date and time
                                    March 31, 2014, 8:27PM
                                  • What does a 'sensible' commentator make on this issue?
                                    So many never read the papers and reports, and simply fire off copypasta supporting their preconceived position.

                                    'AGW'

                                    1. Has physical basis in a very well understood mechanism.

                                    2. Is the expected outcome from measurement of atmospheric gas concentrations (yes, the warming is expected, the temperature measurements only confirm the expected outcome).

                                    3. Can be (and has been) reproduced using simple experiments, and is directly observable on a planetary scale in the form of Venus - which has extremely high surface temperature, despite having 90+% of incoming solar radiation reflected back into space. The high surface temperature is attributable to high concentrations of Carbon Dioxide in the planet's atmosphere.

                                    4. Is subject to complex feedback processes [Climate weather -> terrestrial changes -> weather -> Climate]
                                    This is what the GC models are constructed to understand.

                                    5. Depends on future human actions (land-use, emissions, and mitigation efforts), which are difficult to predict.

                                    6. Occurs on a timescale > 10 years, which makes it difficult for humans to comprehend.

                                    Unfortunately most so-called 'sensible commentators' only pay attention to authority, and no amount of factual evidence will change their mind. One really has to question how 'sensible' commentary from such people on scientific matters really is.

                                    On the question of 4C warming, this depends on the high emissions scenario (CO2 concentration is currently trending above this) and a business as usual response will make this outcome likely.

                                    Commenter
                                    Physicist
                                    Date and time
                                    April 02, 2014, 12:35PM
                                • The only people who can fix this is us.
                                  We need to act.
                                  To apply our technology to reduce emissions and to extract CO2 from the atmosphere.
                                  Much as we may hate it, our future lies in GM crops, algae production and renewable energy sources.
                                  If we can find faster ways to remove CO2 from the atmosphere, we may well be able to continue to use coal. But we need the solution now. Not after the coal is exhausted.

                                  Commenter
                                  Steve
                                  Date and time
                                  March 31, 2014, 11:27AM
                                  • Well, one way for the globe to pursue green technologies is for the people to NOT vote for union lawyers.

                                    obama doesn't care how dirty general motors is- he cares about keeping his union chums in jobs.

                                    How the heck does the world move toward green solutions when the corporation is getting welfare to make dirty old vehicles ?

                                    # You lefties need to make sure labor decouples itself from the unions so that clean is the priority over redundant jobs. Stop pointing the blame at the Liberals and start waking up to the fact that your party is a HUGE part of the CO2 problem.

                                    Commenter
                                    Alex
                                    Location
                                    Finley
                                    Date and time
                                    March 31, 2014, 12:31PM
                                  • Come on nuclear power! oh wait.. the alarmists are anti that as well. Seems like we are all doomed.

                                    Commenter
                                    Sarina
                                    Location
                                    Yarra Valley Sea
                                    Date and time
                                    March 31, 2014, 12:52PM
                                  • @Steve: "Much as we may hate it, our future lies in GM crops, algae production and renewable energy sources."

                                    Not GM crops. They are a distraction from the mitigation work that is needed and only feed more power to the corporations that got us into this mess in the first place.

                                    @Alex: "Well, one way for the globe to pursue green technologies is for the people to NOT vote for union lawyers."

                                    This really takes the cake. As if the Bill Shortens and Barack Obamas of this world are anywhere near as guilty as the climate denialists and their oil company funders! Bill Shorten is trying to push Abbott in the right direction, even if he's not doing anywhere near enough about it.

                                    Climate change will be tackled effectively by the working class or it won't be tackled effectively at all, because it is the capitalists who have the vested interest that is standing in the way of effective action. We have to make our unions part of the solution rather than part of the problem - and we're a lot closer to doing that than to making capitalist politicians part of the solution.

                                    Of course, I don't expect Alex of Finley to be prepared to admit that.

                                    Commenter
                                    Greg Platt
                                    Location
                                    Brunswick
                                    Date and time
                                    March 31, 2014, 1:06PM
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