![Ancient climate records show how the Earth has responded to changing greenhouse gas levels.](/web/20161113165140im_/http://www.smh.com.au/content/dam/images/g/s/k/6/5/j/image.related.wideLandscape.620x349.gso3z0.11u395.png/1479021511259.jpg)
Warming up: new study points to a more sensitive climate to rising CO2
Climate models may be underestimating how sensitive the planet is to rising greenhouse gas levels .
Climate models may be underestimating how sensitive the planet is to rising greenhouse gas levels .
A Trump presidency could have serious impacts on Australia's climate science and other research including short-term weather forecasts.
The Turnbull government has ratified the Paris climate agreement, formalising Australia's commitment to a global effort to curb carbon emissions and reduce the risk of dangerous climate change.
Western Sydney Airport project clears a major environmental assessment hurdle.
Development in Sydney's coastal wetlands will become more difficult as the Baird government moves to tighten controls over ecologically sensitive regions.
The Baird government is on the cusp of "gutting" environment protection in the state, opponents say.
Record hot years such as last year's global scorcher will become the norm before 2030 unless greenhouse gas emissions are curbed, a new study by Australian researchers has found.
Chicken Littles may be on to something when it comes the effects of global warming.
The truth about Hazelwood is that it was never meant to last this long.
A pregnant Baw Baw frog, found high on a muddy mountaintop could be the key to a successful captive breeding program for the seriously endangered animal.
A Zimbabwean court has thrown out charges against a local hunter accused of failing to stop the killing of the country's most prized lion by an American dentist, his lawyer said on Friday.
Donald Trump is looking to Myron Ebell, a well-known climate sceptic, to lead environmental policy.
Fish being caught for our tables are shrinking according to 'concerning' survey of studies published in the journal Science.
(Bloomberg) -- A lawsuit brought by children against the Obama administration may force President-elect Donald Trump to decide how far he'll go to downplay the threat of global warming.
Australia's federal fisheries authority is exploring an ambitious plan to stream live footage from fishing vessels in a bid to improve its ability to respond to controversial reports that nets are killing endangered marine animals.
Bushfires are not Sydney's biggest disaster threat
Sydney could be in for a thundery afternoon as a series of storm cells move in from the Blue Mountains.
There are as many orchids species on Black Mountain as there are in the whole of Great Britain.
A cool change on Tuesday is expected to bring both relief and anxiety to the hundreds of firefighters battling blazes along eastern NSW.
You've heard of the expression to run like the wind. Well in Melbourne last month, the wind didn't run - it flew. But exactly how far did Melbourne's persistent spring winds travel? Put it this way: if you hitched a ride you'd need a passport.
More than 100,000 households in the Sydney region and surrounds are exposed to high bushfire risks.
A major bushfire continues to burn out of control in the Port Stephens area in the NSW Hunter region.
Bogong moths aren't just a marauding horde invading our houses, hot water systems and halls of power - they are a superfood that tastes a little like "charred pork fat".
Mask-wearing protesters took to the streets of the Indian capital on Sunday as the city remained blanketed under a cloud of toxic smoke.
Divisions within the Baird government over its controversial native vegetation reforms are emerging, with a Liberal MP Bruce Notley-Smith warning they could trigger "further irreversible land degradation".
A couple's stay on Crown land at Lake Pamamaroo has lasted 11 years. Now they are being threatened with eviction.
Australian farmers are finally having a golden moment: prices are high for wool, lamb, beef and goat and there has been more rain across Australia than there has been for more than 15 years.
Sydney is bathing in the sunniest spell for this time of year since 1980, pushing the mercury to summer-like highs.
Taronga Western Plains Zoo in Dubbo has trumpeted its credentials as a conservation centre by announcing the birth of its first Asian elephant calf.
The world can't afford to be building new fossil fuel-burn plants, a UN scientist says.
Hazelwood power station will operate until the end of March next year and then shut down quickly after that, workers have been told.
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