400 PPM: What's Next for a Warming Planet

Concentrations of greenhouse gases in the atmosphere have reached this level for the first time in millions of years. What does this portend?

CO2 Levels for February Eclipsed Prehistoric Highs

Global warming is headed back to the future as the CO2 level reaches a new high


How to Solve Global Warming: It's the Energy Supply

Carbon storage has to expand rapidly, or coal burning has to cease, if the world is to avoid dangerous climate change


7 Solutions to Climate Change Happening Now

Even as the world continues to spew more carbon pollution, change has begun—and is accelerating


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