"The top state prosecutors in New York and Massachusetts said on Tuesday they will refuse to comply with a subpoena from U.S. congressmen for details on their investigations into whether Exxon Mobil misled investors on climate change risks."

"Donald Trump may have been grabbing headlines in Cleveland [last] week, but over in Europe it looks like he’s just lost an ongoing, albeit more low-profile battle."

"Two environmental groups are teaming up for a $1 million advertising campaign to oppose Sen. Ron Johnson’s (R-Wis.) reelection. The League of Conservation Voters Victory Fund and the Environmental Defense Action Fund are running the ads to paint Johnson a climate change doubter and oil industry ally, and to frame Democrat Russ Feingold as the environment-friendly alternative."

"The environmental community's reviews of Virginia Sen. Tim Kaine (D) as presumptive Democratic presidential nominee Hillary Clinton's pick for vice president are in, and they range from 'awesome' to 'meh.'"

"The U.S. Environmental Protection Agency on Monday finalized its determination that greenhouse gases from airplanes endanger public health, a decision that requires the agency to regulate emissions from U.S. aircraft."

"PHILADELPHIA — While the Democratic Party was prepping its convention hall on Sunday, environmental activists tried to draw attention to the streets and their ongoing war against fossil fuel extraction. The day before the Democratic National Convention kicks off here, several thousand activists from Pennsylvania and surrounding states endured sweltering heat and humidity for nearly four hours to call for a shift to renewable energy."

"At the award-winning seafood restaurant in downtown Cleveland that The Atlantic rented out for the entire four-day Republican National Convention, GOP Rep. Bill Johnson turned to me and explained that solar panels are not a viable energy source because 'the sun goes down.'"

"Organizations worried about climate change have long drawn comparisons between the petroleum and tobacco industries, arguing that each has minimized public health damages of its products to operate unchecked."

"Battle lines over a proposed Bears Ears monument are blurred, dividing tribes and towns."

"As state attorneys general of N.Y. and Mass. bristle at Rep. Lamar Smith's subpeonas, the legal stakes get higher as the process becomes even more political."