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Peter Hannam covers broad environmental issues ranging from climate change to renewable energy for Fairfax Media.
Peter Hannam Sydney's run of mostly mild weather has come to a blustery, soggy end with heavy rain and damaging winds whipping through the city.
Peter Hannam Santos's plans to treat and dispose of coal seam gas waste water from its $2 billion project in northern NSW would pose a "significant environment risk" and face rejection, government agencies said.
Peter Hannam A blast of wintry weather will most likely make Friday a wet one in Sydney.
Peter Hannam The world remains on course for another record hot year with the first four months of 2015 setting a new high for temperatures and more signals indicating the emerging El Nino event will be a strong...
Peter Hannam The world subsidises energy consumption to the tune of more than $200,000 per second, with about 60 per cent of that going to support coal.
Peter Hannam The NSW Planning Department has strengthened conditions governing the expansion of a Rio Tinto mine in the Hunter Valley and referred the project back to the Planning Assessment Commission.
Peter Hannam The Baird government has cleared AGL of any "adverse findings" after a probe into the discovery of banned chemicals at the energy giant's coal seam gas operations in northern NSW.
Peter Hannam In an ideal world, we would not have had the torturous year and a half of debate over the Renewable Energy Target.
Peter Hannam A pivotal driver of climate for Australia's eastern states is changing as the planet warms, but scientists aren't sure why.
Peter Hannam Last month was within 0.01 degrees of being the equal warmest April in records going back to 1891, Japan Meteorological Agency says.
Peter Hannam Broken Hill's water reserves are down to about 4 per cent amid forecasts the town will be without water by the end of the year.
Peter Hannam Sydney's run of balmy weather will take a break as a strong cold front brings a wintry chill to much of the state's south.
Peter Hannam Prepare for hotter days and a worsening drought - a ''substantial'' El Nino event is underway.
Peter Hannam Keep those sunglasses - and perhaps even the beach towel - within easy reach.
Peter Hannam A clear majority of Australians view global warming as already causing extreme weather events such as storms, droughts and floods and just 3 per cent say "there is no such thing as climate change",...
Peter Hannam Roughly a year ago, scientists poring over temperature readings of the Pacific from satellites and a depleted array of ocean buoys were so sure an El Nino was on the way, the debate was largely how...
Peter Hannam Australia's Bureau of Meteorology is poised to declare an El Nino as certain in coming months as conditions form for a "classic" event.
Peter Hannam We know from the 4 million strikes a day what lightning looks like, but what of its audio partner, thunder?
Peter Hannam Giant waves, stirred by an intense low pressure system in the Pacific, have given surfers the ride of their lives and flooded coastal regions at a Mexican surf mecca.
Paris 2015: Two degrees warming a 'prescription for disaster' says top climate scientist James Hansen
Peter Hannam The world faces a climate 'emergency' and aiming to limit global temperatures to two degrees won't stop massive sea-level rises within decades, the former NASA scientist says.