Average carbon dioxide concentrations, Oct. 1 -
Nov. 11, 2014, measured by the Orbiting Carbon Observatory-2 satellite.
Why use satellites to study Earth's climate? Researchers leading a new mission explain how images from space will help them analyze which parts of the Americas soak up the most carbon.
Nobody can observe events in the future so to study climate change, scientists build detailed models and use powerful supercomputers to simulate conditions, such as the global water vapor levels seen here, and to understand how rising greenhouse gas levels will change Earth’s systems.
People worry Washington is losing respect for science and even the centuries-old scientific method. Two climate scientists explain how science can be done when talking about the future.
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The sun is more powerful today than when we last had similar levels of carbon in the atmosphere.
Luisma Tapia / shutterstock
We need international agreement on a set of Earth's 'vital signs' and how to measure them.
Senator Jacqui Lambie, speaking on Q&A.
During a Q&A discussion about climate change, Tasmanian Senator Jacqui Lambie said it was four degrees hotter 110,000 years ago. Is that right?
NASA has a long history of conducting climate science. Here, a NASA camera captures a storm over South Australia.
One of Donald Trump's senior advisers has recommended cutting NASA climate research because the science has become “heavily politicised". The question is: by whom?
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Climate science is now a key part of the agency's mission.
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By the time we hit that temperature, further climate changes will already be locked in and unavoidable.
Australia’s oceans are heating up.
The new State of the Climate report outlines Australia's rising temperatures and its regional rainfall declines - and the trends that are locked in for the coming few decades due to greenhouse emissions.
Iakov Kalinin / shutterstock
New study changes what we know about the pre-industrial atmosphere – and how we predict future climate change.
Melting ice sheets – such as this one in Greenland – are one way the Earth amplifies global warming.
Ice sheet image from www.shutterstock.com
New projections suggest the world could warm 3-7 degrees over coming centuries.
Human climate change has shifted vegetation and wildlife upslope in Yosemite National Park.
The National Park Service's principal climate scientist explains why the parks are important laboratories for climate change research, and how climate change is altering the parks.
Chris Mole / shutterstock
Will 2017 be a 'bbq summer'? It depends on changes in the jet stream.
More than 150 Australian experts have demanded greater action on climate change from Prime Minister Malcolm Turnbull.
Antarctica’s ice sheets will continue to melt long after this century.
Antarctica image from www.shutterstock.com
If we accept that 2 degrees warming is dangerous this century, we have to accept it is dangerous beyond.
Australia’s treeless alps are vulnerable to the spread of woody shrubs.
Alps image from www.shutterstock.com
Climate change is happening faster than ecosystems can keep up with, so they'll need a hand from us.
The Great Barrier Reef is already feeling the effects of climate change.
Limiting global warming to 1.5℃ already looks out of reach, so where do we go from here?
Increasing land clearing could leave Australia hotter and drier.
Here's another reason to stop land clearing: it's making Australia hotter and drier.
Malcolm Roberts was number 2 on the Pauline Hanson’s One Nation ticket.
AAP Image/Dan Peled
Contrary to the claims of One Nation Senator-elect Malcolm Roberts' that climate change is not happening, there is abundant evidence it is, but it might not be enough to persuade him.
Victoria was one of several states to suffer bushfires as temperatures soared in late 2015.
AAP Image/David Crosling
2015 was the world's hottest year on record. The US State of the Climate report has rounded up the litany of temperature and other records that were broken all over the globe.