It's still possible to hit the more ambitious of the two Paris global warming goals, according to a new estimate of the global carbon budget. But it sure won't be easy, and we need to start now.
Sea ice trapped atmospheric carbon dioxide in the last ice age.
Pearse Buchanan
The last ice age locked atmospheric carbon dioxide into oceans, which has major implications for how the oceans and carbon dioxide may be linked in the future.
This winter had some extreme low and high temperatures.
Daniel Lee/Flickr
In 2017 Australia's winter had the highest average daytime temperatures on record. This extreme is 60 times more likely to occur under the influence of greenhouse gas emissions.
Algae could be the key to a new type of biofuel.
hbarrows/Flickr
The globe is greening as plants grow faster in response to rising carbon dioxide. But a new analysis shows they aren't using more water to do it - a rare piece of good news for our changing planet.
What does the shrinking of the Colorado River mean for Native American religions?
Ken Lund
Historically, indigenous peoples used the natural seasonal cycles of weather, plants and animals as part of their religious calendar. What will be the impact of climate change on their practices?
A new paper improves our estimate of the climate’s sensitivity to carbon dioxide.
NASA/Wikimedia Commons
A new analysis suggests that weather records have not yet had time to capture the full effects of climate change, some of which are likely to take centuries to play out.
Best-case scenario, how much are we locked into?
Kletr/Shutterstock.com
An expert report shows that the G20 countries are using their energy more efficiently. But there is still a long way to go.
Protesters gather outside the White House in Washington D.C. after President Donald Trump’s decision to withdraw the Unites States from the Paris climate change accord.
(AP Photo/Susan Walsh)
Action on climate change is now increasingly in China's hands, and the decisions the country's leaders make in the next decade will have a profound global impact.
Water mass enters the ocean from glaciers such as this along the Greenland coast.
NASA/JPL-Caltech
Greenland's ice is largely responsible for the accelerating pace of sea-level rise. A new analysis shows that, while Greenland accounted for just 5% of the rise in 1993, that figure rose to 25% by 2014.
Solar radiation management involves spraying tiny reflective particles into the upper atmosphere to reflect away some of the energy from the sun
Shutterstock
The current rise in atmospheric carbon dioxide levels is unprecedented in the past 800,000 years. As our video explains, ice cores track human changes to the atmosphere that are far beyond natural.
People gather outside the White House in Washington, D.C. on Thursday, June 1, 2017, to protest President Donald Trump’s decision to withdraw the United States from the Paris climate change accord.
AP Photo/Susan Walsh
While many people are willing to happily gamble with pharmaceuticals, which may offer the most trivial of benefits, they are not ready to believe the facts on climate change.
A pre-industrial climate benchmark generally indicates before the Industrial Revolution – but that still leaves a very wide field.
REUTERS/Jason Reed
The Paris climate agreement aims to keep restrict global warming to within 2℃ above 'pre-industrial levels'. But what does that mean, exactly?
Children hold signs at the C40 Mayors Summit in December 2016. Coalitions of local government are increasingly playing a significant role in combating climate change.
REUTERS/Henry Romero
As the US leaves the Paris accord, how much faith should we put in international treaties? States, cities and local movements are increasingly important players in the fight against climate change.
A wide range of industrial processes have released greenhouse gases into the atmosphere.
Paulo Resende/Shutterstock.com
While the gases most responsible for global warming - carbon dioxide, methane and nitrous oxide - continue to climb, other industrial greenhouse gases are being brought gradually under control.
Australian Research Council Laureate Fellow; Deputy Director of the Climate Change Research Centre (CCRC); Chief Investigator in the ARC Centre of Excellence in Climate System Science, UNSW
