Who set the guardrails on global temperature rise?
More and more research shows that we are likely to pass the 2 degree Celsius temperature limit much of the world has agreed on. Where did that limit come from, and what if we miss it?
Dan Bach Kristensen / shutterstock
The ice sheet is melting and permafrost is thawing. What's happening in Greenland will speed up climate change across the world.
When Tony Abbott went too far in his advocacy for the coal industry, his government faced a public backlash.
While climate denialism impedes policymaking in both the US and Australia, there are key differences in their political and public cultures.
In 2013, pro-science supporters rallied before a Texas Board of Education public hearing on proposed new science textbooks.
AP Photo/Eric Gay
Thirty years after the Supreme Court ruled that creationism cannot be required in schools, 'creation science' is still taught in some schools. What are the implications for climate education?
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.
Neo Studio / shutterstock
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?
panuwat phimpha / shutterstock
Climate science is now a key part of the agency's mission.
underworld / shuttstock
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.