"Scientists worry that the runaways could harm native species".

"Unspoiled lands are disappearing from the face of the Earth at an alarming pace, with about 10 percent of wilderness regions - an area double the size of Alaska - lost in the past two decades amid unrelenting human development, researchers said on Thursday."

"Antibiotic resistance has grown so dire that it will be the subject of a dedicated global summit later this month".

"California will tighten controls on greenhouse gas emissions from vehicles, factories and public utilities under a pair of bills signed on Thursday by Democratic Governor Jerry Brown."

"The governor of North Dakota has activated the state's National Guard ahead of a U.S. District judge's decision Friday morning that could inflame protesters who have been gathered here for weeks in an effort to block a pipeline project."

"A North Dakota judge issued a warrant Wednesday for the arrest of Green Party presidential candidate Jill Stein, who is accused of spray-painting construction equipment during a protest against the Dakota Access pipeline."

"In its biggest expansion in decades, Yosemite National Park on Wednesday broadened its western boundary by adding 400 acres of lush meadowlands edged with cedars and ponderosa pines that provide habitat for some of California’s most threatened wildlife."

"After this week's G20 summit in China failed to set a target year to phase out hundreds of billions of dollars in state subsidies for polluting fossil fuels, green groups and experts are urging Germany to finish the job as host of next year's summit."

"Thirteen months after an Environmental Protection Agency mistake sent millions of gallons of bright orange wastewater into a Colorado river, the agency has declared the Gold King Mine and 47 other locations in the region Superfund sites, Colorado Public Radio reports."