Articles on Carbon dioxide

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Children march at the welcoming ceremony of the Conference of the Parties (COP23) in Bonn, Germany. (UNclimatechange/flickr)

How citizens are fighting climate change on the global stage

As delegates meet in Bonn for the latest rounds of climate talks, civil society, NGOs, cities, regional governments and businesses, are stepping up to work together toward climate goals.
Who will emerge as the leader on climate change following the U.S. withdrawal from the Paris agreement? (AP Photo/Evan Vucci)

Canada has the opportunity to be a climate leader in Bonn

Canada ratified the Paris agreement on climate change, but it hasn't yet filled the leadership void left by the United States. Time is running out.
Carbon dioxide flux over China, measured by NASA’s Orbiting Carbon Observatory-2 satellite. NASA

Satellites are giving us a commanding view of Earth’s carbon cycle

New data from a NASA satellite show in unprecedented detail the flow of carbon dioxide into the atmosphere. Future satellites should even be able to detect the signatures of individual power stations.
The window for staving off the worst of climate change is wider than we thought, but still pretty narrow. Tatiana Grozetskaya/Shutterstock.com

Keeping global warming to 1.5 degrees: really hard, but not impossible

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.
A wide range of industrial processes have released greenhouse gases into the atmosphere. Paulo Resende/Shutterstock.com

Global stocktake shows the 43 greenhouse gases driving global warming

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.
Rice paddies are one of the major sources of methane in agriculture. Amir Jina/Flickr

Methane from food production might be the next wildcard in climate change

Methane concentrations in the atmosphere are growing at a faster rate than any time in the past 20 years.
Dry period in semi-arid central Australia. James Cleverly

Australia’s ‘great green boom’ of 2010-11 has been undone by drought

Extreme wet years are getting wetter and more common. This means Australia's terrestrial ecosystems will play a larger role in the global carbon cycle.
The earth’s missing ‘fingerprint’ sits somewhere in the upper atmosphere, but for some reason eludes climatologists. Shutterstock

Explainer: the search for Earth’s ‘missing fingerprint’

Without understanding why the 'fingerprint' has failed to appear our predictions about global warming - as carbon dioxide concentrations increase - are uncertain.

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