Nicky Phillips and Lisa Cox Global greenhouse gas emissions from burning fossil fuels and cement production surged to a record-breaking 36 billion tonnes of CO2 last year, pushing emissions to their highest level in human history.
NICK O'MALLEY Pacific island nations that supported Australia's bid for the UN Security Council feel let down by its stance on climate change, says the foreign minister of the Marshall Islands.
PETER HANNAM Naomi Klein's provocative new book takes on global capitalism's role in hastening climate change and argues the model needs replacing - fast.
ANDREW DARBY Antarctic sea ice's area has exceeded 20 million square kilometres for the first time in recorded history, in a shift attributed to climate change.
PETER HANNAM Across Australia, fire crews are gearing up for another difficult season of bushfires as climate change signs intensify.
PETER HANNAM Confidence is growing among clean energy supporters that the Abbott government will be forced to back down over plans to make deep cuts to the renewable energy target (RET).
Thousands of residents have been evacuated and buildings ravaged as wildfires spread across California.
India is preparing to lift its solar target to 15 gigawatts by 2019, more than five times current capacity, as Prime Minister Narendra Modi seeks to accelerate clean-energy deployment.
Hollywood actor and environmental activist Leonardo DiCaprio has been named a United Nations Messenger of Peace, a post he will use to raise awareness about climate change, UN Secretary-General Ban Ki-moon said on Tuesday.
The Obama administration on Tuesday announced a series of moves aimed at cutting emissions of hydrofluorocarbons, or HFCs, powerful greenhouse gases that contribute to climate change.
PETER HANNAM The NSW government on Wednesday will proudly unveil the restored Farm Cove Sea Wall protecting the Royal Botanic Gardens from harbour tempests.
Justin Gillis In decades of public debate about global warming, one assumption has been accepted by virtually all factions: that tackling it would necessarily be costly. But a new report casts doubt on that idea, declaring that the necessary fixes could wind up being effectively free.
PETER HANNAM Last month was the hottest August on record globally, adding to a run of months with exceptionally warm conditions.
An increasing number of big corporations expect governments worldwide to put a price on carbon dioxide emissions to help tackle climate change and some are already factoring in the cost to guide future investment decisions, a report finds.
JUSTIN GILLIS Of all the developed nations, few have pushed harder than Germany to find a solution to global warming. And towering symbols of that drive are appearing in the middle of the North Sea.
Tiny marine algae can evolve fast enough to cope with climate change in a sign that some ocean life may be more resilient than thought to rising temperatures and acidification, a study showed.
LATIKA BOURKE There is still time for China to curb its carbon emissions to give the planet a "reasonable future", former prime minister Kevin Rudd has said.
China's national carbon market is likely to regulate 3-4 billion tonnes of carbon dioxide by 2020 and be worth up to 400 billion yuan ($72 billion), a government official said on Thursday, which would make it twice as big as the EU market, currently the world's biggest.
Wendy Koch Politically "red" and "blue" US states are increasingly turning green as they push energy efficiency and renewable power to save money and protect the planet, says a report today with prominent bi-partisan support.
Warmer air triggered the collapse of a huge ice shelf off Antarctica in 2002, according to a report that may help scientists predict future break-ups around the frozen continent.
Rachel Feltman As more and more carbon dioxide enters the atmosphere, the ocean is acidifying too quickly for sharks to keep up.
The ozone layer that shields life from cancer-causing solar rays is showing its first sign of recovery after years of dangerous depletion, a U.N. study said on Wednesday, in a rare piece of good news on the environment.
PETER HANNAM The timing of the renewable energy target should be extended and inefficient fossil-fuel generators paid to exit the industry as a way of ending an impasse over the future of the clean energy sector, Climate Change Authority head Bernie Fraser has said.
PETER HANNAM Atmospheric levels of carbon dioxide are rising at a record rate as fossil fuel consumption increases and the ability of the oceans to absorb the greenhouse gas diminishes, the World Meteorological Organisation said.
GERALDINE FABRIKANT As pressure grows from students who want to see their schools use financial clout to address environmental issues, Yale University's investment office wrote to its money managers asking them to assess how investments could affect climate change and suggesting they avoid companies that do not take sensible "steps to reduce greenhouse gas emissions."
PETER HANNAM Hopes of a bipartisan accord to break an impasse over the renewable energy target have dimmed, with Labor saying it won’t be a party to a broken election promise by the government.
The world's major economies are falling further behind every year in terms of meeting the rate of carbon emission reductions needed to stop global temperatures from rising more than 2 degrees this century, a report published on Monday showed.
PETER HANNAM There's a 99.999 per cent certainty that human activities – from burning fossil fuels to land-clearing – are responsible for warming conditions.
Sangwon Yoon and Mark Drajem The top leaders of China and India, two of the world's top emitters of greenhouse gases, aren't planning to attend this month's United Nations summit on climate change, according to a diplomat at the UN.
PETER HANNAM Soils may be less of a carbon sink than previously thought, with new research indicating that the earth is likely to release more carbon as the planet heats up.
PETER HANNAM A global movement to divest from fossil fuels will get some local impetus with the launch on Thursday of the country’s first fossil-free superannuation fund.
PETER HANNAM Carbon emissions from the country’s main electricity grid have risen since the end of the carbon tax by the most in almost eight years.
Robert Bryce There's no question that solar is on a tear. But for all the innovation going on in renewable energy, it's worth remembering solar is not keeping up with the growth of coal, oil and gas.
Julia Rosen This year, Antarctic sea ice has expanded its frigid reach with unprecedented speed, setting records in June and July. By the time spring punctures the long Antarctic night, 2014 stands a decent chance of topping 2012 and 2013, which each broke records of maximum total ice extent.
Tim Flannery and Fiona Stanley The dangers to Australians' health by the menace of air pollution from coal-fired power stations can no longer be tolerated, write Tim Flannery and Fiona Stanley.
Imaginary television weather forecasts predicted floods, storms and searing heat from Arizona to Zambia within four decades, as part of a United Nations campaign on Monday to draw attention to a U.N. summit this month on fighting global warming.
PETER HANNAM Above-average temperatures and rain deficits mean Australia’s main population centres can expect a more active bushfire season this summer than usual.
Michael Smith The G20 summit is Australia's chance to begin addressing its poor productivity performance.
PETER HANNAM The sunny start to spring for Sydney may not last for long but it’s a reminder of what’s been another remarkably warm period for the city.
China plans to roll out its national market for carbon permit trading in 2016, an official said Sunday, adding that the government is close to finalising rules for what will be the world's biggest emissions trading scheme.
Rich nations have moral duty to help island nations as climate change shifts weather patterns, says World Bank envoy
PETER HANNAM Small island nations, particularly those in the Pacific, are already experiencing ''extreme effects'' from global warming, and rich nations including Australia have a ''moral responsibility'' to help them cope with future unavoidable threats, a senior World Bank executive said.
PETER HANNAM Fuel-reduction burning in catchment areas has less impact on water quantity and quality than previously thought and should be given a greater priority to limit the effect of major bushfires, says new research conducted in the aftermath of Victoria’s Black Saturday in 2009.
DEBORAH GOUGH The Uniting Church in Australia will stop investing in corporations that extract fossil fuels, saying it must do its part to support small island states at risk over global warming.
PETER HANNAM Australians are supposed to be among the fastest consumers to take up new gadgetry but when it comes to adopting solar energy the country remains very much in the shade – and the shadow is about to get darker.
PETER HANNAM Solar energy installers are expecting a boom then sharp contraction of their businesses as the Abbott government prepares to take an axe to renewable energy support.
Stefan Nicola Investments in new clean-energy capacity will total $US1.61 trillion ($1.72 trillion) through 2020 even as the expansion of renewables is expected to slow, the International Energy Agency said.
PETER HANNAM The cost of solar panels for residences is likely to rise by as much as 50 per cent if the Abbott government takes up the recommendations of its hand-picked panel to wind back the small-scale renewable energy target.
PETER HANNAM The NSW government has called for a national ban on the sale and production of shampoos and other products containing microplastics before they inflict worse damage on marine environments.
PETER HANNAM The momentum of global warming caused by the build-up of greenhouse gases is likely to overwhelm natural cooling processes within decades, according to research by the University of NSW.
PETER HANNAM The world is headed “down a dangerous path” with disruption of the food system possible within a decade as climate change undermines the ability of nations to feed themselves, according to a senior World Bank official.
Justin Gillis Runaway growth in the emission of greenhouse gases is swamping all political efforts to deal with the problem, raising the risk of 'severe, pervasive and irreversible impacts' over the coming decades, according to a draft of a major new UN report.
PETER HANNAM The University of Sydney has become the first institution of its type in Australia to halt further investments in coalmining, a move likely to send ripples through the funds industry.
PETER HANNAM Sydney commuters can expect another soggy journey home as the remnants of an east coast low continue to bucket coastal regions of the state.
PETER HANNAM Greenpeace is calling on the University to Sydney to dump its shares in coal miner Whitehaven after the institution decided to halt further stock purchases while an investment review is underway.
PETER HANNAM Beach wanderers may be in for a treat these evenings as a “flowering of the oceans” including a bloom of Sea Sparkle heralds the arrival of spring.
Henry Fountain Scientists have discovered methane gas bubbling from the seafloor in an unexpected place: off the East Coast of the United States where the continental shelf meets the deeper Atlantic Ocean. The methane is emanating from at least 570 locations, called seeps, from near Cape Hatteras off North Carolina.
What actually is the carbon tax? Your questions answered.
Graphic on how carbon pricing is intended to work.
Alarming photos of a Greenland glacier that has melted.
John Cook lists the sceptics' arguments and gives answers.