A Project of The Annenberg Public Policy Center

Trump Wrong on Climate Change, Again

In two recent interviews, President Donald Trump said he is not convinced that climate change is due to human activity, and he suggested that any changes will reverse themselves — two ideas that lack scientific backing.

How Potent Is Methane?

Two federal agencies this month took steps that would allow the oil and gas industry to release more methane, a greenhouse gas, into the environment. Critics warned that methane is more potent than carbon dioxide at trapping the Earth’s heat, but some gave wildly divergent figures to describe how much more potent.

Scientist Schools Congressmen on Climate

During a recent hearing on the role of innovation in addressing climate change, several Republicans made faulty claims about the climate, past and present.

NextGen Climate Action Committee

NextGen Climate Action Committee is a liberal environmental advocacy organization founded by San Francisco billionaire Tom Steyer.

Smith’s Error-Filled Climate Op-Ed

In an op-ed for Fox News, Rep. Lamar Smith, the chairman of the House science committee, made a host of false and misleading claims about climate change and related issues.

Ice Caps at Record Low, Not High

In a recent interview with the British station ITV, President Donald Trump falsely implied the globe’s ice caps are at “record” high levels. But ice caps generally have been declining worldwide.

Cold Facts on the Globe’s Hottest Years

Sen. James Inhofe misleadingly claimed that the statistics behind the globe’s likely hottest years on record — 2014, 2015 and 2016 — were “meaningless” because the temperature increases were “well within the margin of error.” Taking into account the margins of error, there’s still a long-term warming trend.

Warming to Blame for Western Wildfires?

Q: Did climate change cause the wildfires out West?

A: Scientists say a hot and dry summer — conditions more likely in a warmer world — caused widespread wildfires in Western states. But land use changes also have played a role.

Did Air Quality Improve Under Obama?

EPA head Scott Pruitt criticized former President Barack Obama for leaving 40 percent of Americans with air quality that doesn’t meet EPA standards. But a report Pruitt’s office cited as evidence said there had been a “major improvement” in air quality under Obama.

Hurricane Harvey and Climate Change

Hurricane Harvey has brought with it both a record amount of rain and questions about how much climate change can be blamed for the storm. Climate change did not cause Harvey, or any other storm, but it makes intense storms like Harvey more likely to occur, scientists say.