"SIERRA VISTA, Ariz. — It's easy to spot the San Pedro River from the air; just look for the cottonwood trees outlining its banks. The bright green forest persists even at the height of Arizona's dry season in June, when most of the river doesn't have any water. But summer monsoons this month bring waves of water up to a dozen feet tall."

"U.S. coastal cities face billions of dollars in costs for the extensive infrastructure projects needed to protect against rising seas and worsening storms. From Boston to Miami, government officials are only beginning to grasp the enormous expense of what will be required."

"About half a million acres of land in the rural Yazoo backwater area in Mississippi is underwater, a devastating blow for a poor region where agriculture is the economy’s lifeblood".

"MARICOPA, Calif. — Jon Reiter banked the four-seat Cessna aircraft hard to the right, angling to get a better look at the solar panels glinting in the afternoon sun far below."

"A study promised a rare positive development from global warming for Maryland’s favorite crustacean. But the bad news wasn’t far behind."

"A forthcoming EPA overhaul of standards for lead in drinking water will essentially ban partial lead pipe replacement, in which part of a lead pipe is removed but another part is allowed to remain, Bloomberg Environment has learned."

"Record-breaking spring rains and historic flooding in the Midwest were poised to create one of the biggest dead zones on record in the Gulf of Mexico this summer, researchers had estimated. Instead, Hurricane Barry mixed up the waters, making the dead zone smaller than expected, scientists said during a National Oceanic and Atmospheric Administration press conference on Thursday."

"A federal judge blocked construction of a giant copper mine in Arizona’s Coronado National Forest, overturning a decision by the federal government and handing a major victory to environmental groups and tribes that have been fighting plans for the mine."

"Just as utilities have begun making costly plans to move toxic coal ash out of fragile storage ponds to protect waterways and aquifers, the Trump administration may be about to give them a cheaper alternative: Letting them use unlimited amounts of ash at certain construction sites."

"After months of record temperatures, scientists say Greenland's ice sheet experienced its biggest melt of the summer on Thursday, losing 11 billion tons of surface ice to the ocean -- equivalent to 4.4 million Olympic swimming pools."