National (U.S.)

"At the foot of a giant sequoia in California's Sierra Nevada, two arborists stepped into harnesses then inched up ropes more than 20 stories into the dizzying canopy of a tree that survived thousands of years, enduring drought, wildfire and disease. There, the arborists clipped off tips of young branches to be hand-delivered across the country, cloned in a lab and eventually planted in a forest in some other part of the world."

"A month after hackers blacked out power in western Ukraine, a team of U.S. security experts touched down in Kiev to piece together the extraordinary assault."

"Exposure to more intense shale gas development correlates with a higher risk of asthma attacks among asthma patients, according to a new study of Pennsylvania's Marcellus Shale, one of the nation's largest and most active fracking regions."

"The enormous algae outbreak that has coated swaths of Florida's St. Lucie River with guacamole-like sludge is a man-made affliction, arising from political and economic decisions made over the past 140 years."

"Matt Mead, the governor of Wyoming, the nation’s leading coal-producing state, fiercely opposes President Obama’s climate change regulations, which could shutter hundreds of coal plants and deeply wound his state, one of 27 that are suing to block the plan. Nevertheless, Mr. Mead, a Republican, has ordered his top environmental officials to prepare to comply with the president’s effort... ."

"When more than 300 protesters assembled in May at the Holiday Inn in Lakewood, Colorado — the venue chosen by the Bureau of Land Management (BLM) for an auction of oil and gas leases on public lands — several of the demonstrators were in fact undercover agents sent by law enforcement to keep tabs on the demonstration, according to emails obtained by The Intercept."

"As 2016 predicted to be the hottest year on record, African Methodist Episcopal Church leaders are taking a stand against climate change and urging their congregations and communities to do the same."

"CLEVELAND -- Eleven House Republicans who are trying to change their party's attitude on climate change appear to be skipping the GOP convention beginning here today. Several also say they won't vote for presumed presidential nominee Donald Trump."

"US Interior Secretary Sally Jewell visited Utah's 'Bears Ears' last week in an attempt to resolve an increasingly contentious debate over whether to designate the San Juan County cultural landscape as a US National Monument."

"Despite praising automakers for recent gains in fuel economy, two federal agencies said on Monday that surging consumer demand for pickups and sport utility vehicles made it unlikely that the industry could meet the government’s ambitious projections a decade from now."