Global Warming

Learn about the science and impacts of global warming from our scientists and experts—and explore the solutions we have at hand to address this critical issue.


Subscribe to our Global Warming feed

Latest Global Warming Posts

Image of California's Capitol Building

California Just Made Climate Change History. How Did it Happen?

, Western states policy manager

The day before yesterday I sat in the gallery of the California Senate and saw something that just a few weeks ago I wasn’t expecting: Senators casting the final vote on an historic set of bills—Senate Bill 32 (Pavley) and Assembly Bill 197 (E. Garcia)—that reaffirm the state’s commitment to addressing climate change through 2030. After the vote was over, my colleagues and I shared hugs, smiles, and tears as the weight of the accomplishment washed over us. It was a great day. Read more >

Bookmark and Share

Peak Oil, Peak Coal, Peak Deforestation, Peak Emissions…. and Why They’re Not Nearly Enough

, scientific adviser, Climate and Energy

Recent data related to our global emissions of heat-trapping gases suggest that humanity may have reached a turning point, or even several. We may be moving from increasing emissions, to peaking and starting to decline. We could be close to such peaks, or even have passed it, for several of the main sources of greenhouse gases, including coal and deforestation—perhaps even for humanity’s total emissions.

If so, this would be a momentous occasion, reversing centuries of growing global warming pollution. But before we start celebrating, we should realize that peaking is not nearly enough.

Read more >

Bookmark and Share

Flooding, Extreme Weather, and Record Temperatures: How Global Warming Puts it All Together

, climate scientist

Even though Louisiana is not among the areas that has seen the most increase in heavy precipitation events, the Southeastern US has seen an increase of 27 percent from 1958 to 2012. The straightforward explanation for heavier downpours is that warmer air can contain more water vapor than cooler air. Indeed, global measurements show that there is more water vapor in the air now. It follows that there is more water to come down when it rains. Read more >

Bookmark and Share

Leading Scientists Urge California Lawmakers to Act on Climate Change This Year

, Western states policy manager

There are just eight working days left in the 2016 legislative session, and the biggest question in the state Capitol is whether lawmakers will vote to extend California’s successful programs to fight climate change. Read more >

Bookmark and Share

Climate Change and the Future of Oregon Forests

Dr. Robert Scheller, , UCS

Projected changes to the climate over the coming centuries will radically restructure many of our forests throughout the world. What will we do about it? Read more >

Bookmark and Share