"Demolishing dams helps many fish but threatens waters where some native species shelter from drought and invasive predators"

"With California now on track to have the rainiest year in its history—on the heels of its worst drought in 500 years—the state has become a daily reminder that extreme weather events are on the rise. And the recent near-collapse of the spillway at California’s massive Oroville Dam put an exclamation point on the potentially catastrophic risks.

"As the underwater methane leak in Cook Inlet, Alaska continues well into its third month, even basic environmental monitoring has been impossible because of ice cover. The ice also prevents any repair to the pipeline or response to the leak."

"Operators of twin oil pipelines beneath the swirling waterway where Lakes Huron and Michigan converge insisted Monday they remain structurally sound even though an outer layer of protective covering has worn away in some places, while skeptics said the deterioration is further evidence the lines should be shut down."

"An environmental group says Duke Energy is polluting a lake and two river basins with coal ash from its Person County power plant, and gave formal notice Monday that it will sue over the alleged violations."

"Long before a fractured spillway plunged Oroville Dam into the gravest crisis in its 48-year history, officials at a handful of downstream government agencies devised a plan they believed would make the dam safer: Store less water there."

"SISKIYOU COUNTY, Calif. — Hostilities between farmers, Native Americans and fishermen over the wild waters of the Klamath River here nearly turned violent at the turn of the century."

"A mighty river of brown, raw sewage and stormwater makes a plume offshore at Discovery Park, plainly seen from the air."

"As President Trump promises major investment in infrastructure, people across the country are hoping that includes spending on water pipes for drinking."

"The world is getting warmer every year, thanks to climate change — but where exactly most of that heat is going may be a surprise."