Carbon emissions rise but could slide in 2019

Jan 8, 2019
For the first time in four years U.S. carbon emissions increased, mostly because a booming economy used more energy resources, even with a shift toward renewable energy and natural gas. But can a booming economy and rising emissions decouple? Click…

One year after President Trump walked away from the Paris climate accord, cities rise to the challenge

Jun 1, 2018
Today marks one year since President Donald Trump made good on his threat to withdraw the United States from the Paris climate accord agreed to under the Obama administration. In response, 17 states and 2,700 mayors and business leaders have…

Could California’s cap-and-trade system control other pollution, too?

Apr 20, 2017
Even as the White House rolls back national climate change programs, California is moving forward on a cap-and-trade system to reduce greenhouse gas emissions. Yet the Golden State still has some of the highest air pollution in the nation from…

Could 'free riders' derail climate talks?

Nov 24, 2015
Some countries do little to cut emissions and benefit as others do the heavy lifting.
Smoke billows from smokestacks and a coal fired generator at a steel factory in the industrial province of Hebei, China. With climate change talks in Paris in the upcoming week, some countries are doing more than others. 
Kevin Frayer/Getty Images