
CO2 Levels for February Eclipsed Prehistoric Highs
Global warming is headed back to the future as the CO2 level reaches a new high
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

7 Solutions to Climate Change Happening Now
Even as the world continues to spew more carbon pollution, change has begun—and is accelerating

Everything You Need to Know about the U.S.–China Climate Change Agreement
A turning point has been reached in the world's bid to curb global warming

Climate Change Will Be Solved in Cities--Or Not at All
As world leaders gathered at the U.N. to talk about global warming, mayors set about actually doing something about climate change

Obama's Clean Power Plan Means More Gas to Fight Global Warming [Video]
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.

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

Food and Water Shortages May Prove Major Risks of Climate Change
Poor people will suffer the most, unless the world exploits vanishing opportunities to adapt

Realistic Climate Models Exhibit Greenhouse Gas Sensitivity
A consideration of the role of sootlike particulates and ozone implies that the climate should will not be insensitive to increasing levels of greenhouse gases. David Biello reports

12 Graphics that Contain Everything You Need to Know about Climate Change
Climate change is real, it’s here and it will be affecting the planet for a long, long time. That’s the lesson of the latest iteration of the Intergovernmental Panel on Climate Change‘s state of climate science report, released in its entirety on January 30.

Heat Is on These Countries for the Heat
A new analysis calculates each of the world's countries total amount of CO2 pollution, along with responsibility for the ensuing global warming

Dangerous Global Warming Closer than You Think, Climate Scientists Say
Two new reports lay out the case for fast action and increased awareness

Safe Limit for Global Warming Is Lowered Dramatically by Experts
Carbon taxes and nuclear power will be necessary to cut CO2 emissions quickly enough to avert disastrous climate change, they say

Ozone Hole History Offers Climate Lesson
The Montreal Protocol aimed to fix the ozone hole but it also delayed global warming. David Biello reports

The New Climate Data: So What?
After much anticipation, the Intergovernmental Panel on Climate Change on Friday revealed it’s new assessment of climate change, after two years of deliberation.

Is the Pacific Ocean Responsible for the Pause in Global Warming?
Sea-surface temperatures may explain why climate change is not warming the planet as fast

Why Is the Boreal Forest Breathing CO2 More Deeply?
The flow of CO2 into and out of the vast northern forests has been increasing in recent years, thanks to climate change

More Carbon Emissions = Less Global Warming?
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.

When a Heat Wave Is the Future, You Need Better Air-Conditioning
Demand for A-C is only going to grow, so we'll need better technologies. David Biello reports

U.S. Farmers View Climate Change as Just Another Weather Challenge
Why don't U.S. farmers believe in human-caused climate change?

Climate Change Getting Worse by the Minute
The world is not on track to reduce, or even restrain global warming. David Biello reports

Who Is Fooling Whom When It Comes to Combating Climate Change?

Who's Paying the Price for Global Warming?
U.S. taxpayers have so far borne the brunt of climate change costs. David Biello reports

400 PPM: Can Artificial Trees Help Pull CO2 from the Air?
Although capture technologies show promise, pulling CO2 out of the air is unlikely to reduce greenhouse gas concentrations soon

400 PPM: Carbon Dioxide in the Atmosphere Reaches Prehistoric Levels