The average meat-eater in the U.S. is responsible for almost twice as much global warming as the average vegetarian.
A visualization of the growth of carbon-dioxide levels, which are higher than they've been in 800,000 years.
By Puneet Kollipara
A U.N. agency blames humans for record heat that gripped parts of the world last year. Here are six key findings from its annual report.
By Puneet Kollipara
Democrats in the Senate stayed up all night talking about the perils of climate change. But while there's hope that technology, changing consumer and business practices or new policies could finally turn the tide and slow or reverse climate change, there are also good reasons to think those efforts will fail.
The report found that blocking or approving the Keystone XL pipeline was unlikely to have a "significant" impact on climate change emissions.
Last year, China added far more fossil-fuel capacity than it did solar, wind, hydro, and nuclear power combined.
A closer look at whether natural gas can help the U.S. reduce its emissions.
The EU has a new plan to cut carbon-dioxide emissions 40 percent by 2030 — but also loosen its renewable energy goals.
U.S. electric utilities burned a bit more coal and a bit less natural gas last year.
A primer on the next big energy debate in Congress.
Since this keeps coming up, let's go back to basics.
But there's no real plan for what happens after that.
As soon as we quit spraying those reflective particles into the atmosphere, the Earth will heat up very, very, very rapidly.
Congress has created 42 different tax incentives for energy. Baucus wants to sweep them all away and replace them with just two.
Obama's new adviser, John Podesta, will push the White House to act more forcefully on climate change. Here's what he was advocating back in 2010.
Scientists have long worried about abrupt shifts in climate that could trigger mass extinctions or a rapid rise in sea levels. A big new report looks at how likely this is.
A new study asks 90 different experts around the world for their projections on sea-level rise. The answers were surprising.
At the Warsaw climate talks, rich and poor nations are arguing over who's responsible for climate change. Here's how to understand the dispute.
The world's developed countries have promised to raise $100 billion per year in climate-change aid to poor countries by 2020. That's looking increasingly unlikely.