"Long lead times for distribution transformers have emerged in recent months as a bottleneck that threatens progress toward meeting climate goals and upgrading the country’s power grid, industry leaders and energy officials said."

"John Kerry travels to Beijing for three days of talks, as the world’s two biggest economies, and two biggest polluters, try to cooperate on climate action."

"An extreme heatwave peaked in the western United States on Sunday, with temperatures reaching 128 Fahrenheit (53 Celsius) in the California desert, while flash flooding continued to menace the Northeast, killing at least five people."

"For the last several months, one of the nation’s largest pipeline operators has gone from one local government meeting on the Navajo Nation to another, outlining plans for what could end up being the country’s longest hydrogen pipeline."

"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."

"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."