"Proposed EPA methane limits may help curtail 7,500 yearly deaths from oil and gas production sites."

"The Environmental Protection Agency (EPA) Tuesday took another step toward reducing the use of planet-warming gasses called hydrofluorocarbons, issuing a rule moving toward a 40 percent phasedown of the substances."

"Houston plans to spend millions of dollars to relocate residents from neighborhoods located near a rail yard polluted by a cancer-linked wood preservative that has been blamed for an increase in cancer cases, the city’s mayor announced Thursday."

"The World Health Organization’s cancer agency has deemed the sweetener aspartame — found in diet soda and countless other foods — as a “possible” cause of cancer, while a separate expert group looking at the same evidence said it still considers the sugar substitute safe in limited quantities.

The differing results of the coordinated reviews were released early Friday. One came from the International Agency for Research on Cancer, a special branch of the WHO. The other report was from an expert panel selected by WHO and another U.N. group, the Food and Agriculture Organization.

"Natural gas, long seen as a cleaner alternative to coal and an important tool in the fight to slow global warming, can be just as harmful to the climate, a new study has concluded, unless companies can all but eliminate the leaks that plague its use."

"Republicans on Thursday accused John Kerry, President Biden’s special envoy for climate, of being soft on China as he prepared to travel to Beijing to restart discussions between the world’s top two polluting countries."

"An expansive heatwave that's been baking the southern United States for nearly two weeks is only expected to intensify as the weekend approaches, forecasters say. Heat advisories and warnings are still in place from Florida to Arizona, impacting more than 111 million people, according to a count from the Associated Press."