How many people might die from air pollution? The answer should become clear today when EPA releases its revamped rule affecting carbon dioxide emissions at power plants.

German Chancellor Angela Merkel is seeking to build momentum within the European Union about moving toward adopting a goal for zeroing out greenhouse gas emissions by the middle of the century.

Germany's decades-old willingness to subsidize green power is crumbling in the face of political headwinds over the cost of technology that's only getting cheaper.

Amazon.com Inc., Exxon Mobil Corp. and Volvo are among more than 700 companies being targeted in a campaign backed by a large group of investors advocating for greater transparency when it comes to environmental impact.

A zero-emission Hummer sounds as paradoxical as nonalcoholic whiskey, but General Motors Co. is mulling over the idea of building an electric vehicle that would bring the defunct gas-guzzling brand back to life.

Federal housing officials are loosening a long-standing rule that has kept disaster victims from making multiple claims on federal recovery dollars.

Countries that form a working group for the Montreal Protocol are expected to begin debating a proposal to examine the risks and benefits of geoengineering next month in Bangkok. These are solutions that might help cool an overheated planet if global efforts to reduce human-caused greenhouse gas emissions fall short.

Extreme temperatures are setting heat records around the world almost every year. And it will become more and more common, scientists say.

Gov. Andrew Cuomo (D) said yesterday he has reached an agreement with legislative leaders over a bill to slash New York's greenhouse gas emissions, setting the stage for one of the most significant climate victories since President Trump took office.

In 2008, the year the stock market crashed and Barack Obama won the presidency, the U.S. was hit with a weather phenomenon little noted by anyone beyond the insurance industry.

Gov. Henry McMaster (R) started his Saturday in a South Carolina town devastated by flooding twice in three years to try to help make things better in the short and the long term.

The environmental activist group Extinction Rebellion has postponed a plan to shut down London's Heathrow Airport with drones after it was criticized by politicians and police.

The role of markets in slashing fossil fuel pollution is returning to the center of the political debate about how to fight global warming.

The United States and Japan joined 18 other countries yesterday in backing the creation of a new international "framework" to curb ocean plastics after rejecting a stronger Canadian proposal on the same topic last year.

Large investors in General Motors Co. are urging the company to take a stronger stance against President Trump's efforts to unravel a key Obama-era climate policy.

If wind turbines and solar panels are the celebrities of the clean energy revolution, then energy efficiency is its workhorse.

Republican climate policy is taking shape under the Trump administration, with a new forestry proposal offering an example of businesses setting the parameters of action.

U.S. cities are bracing for another summer of extreme heat, with temperatures already skyrocketing in some places. Scientists are trying to determine if heat waves in the U.S. are caused in part by changes in the Arctic.

Researchers calculate that the electricity required for the virtual currency bitcoin generates as much carbon dioxide as a city like Las Vegas.

Australia has approved Adani Group's controversial coal project that opens up a new mining region and puts the world's biggest exporter further at odds with the global movement to phase out the fuel.