"Long before wind and solar, water was the nation’s top renewable energy source. Going back some 100 years, the United States built enormous dams — like the Depression-era Hoover Dam in Nevada — to produce tremendous amounts of energy."

"Husky Energy issued a release on Tuesday afternoon as a "clarification" of the timeline surrounding the leak of 200-250 cubic meters of oil into the North Saskatchewan River."

Agriculture in the High Plains states from Texas to South Dakota has depended on irrigation from the Ogallala Aquifer. But pumping has depleted it and and it is not being replenished. What will happen when it is gone?

"The drought that has taken hold in the Northeast is especially felt at John Lavoie's farm in Hollis, presenting him with some tough choices. Irrigation ponds are drying up, forcing him to choose between tomatoes and berries or apple and peach trees."

"HUGO, Colo. — Officials told residents of a small Colorado town not to shower or drink tap water Thursday because wells have been contaminated with marijuana's intoxicating chemical."

"California agencies released a three-year plan to bring delta smelt back from the brink of extinction, but some of the goals and the overall feasibility of the plan have been questioned."

"The U.S. Navy confirmed Tuesday that ship shock trials with 10,000 pounds of explosives were conducted on Saturday and earlier in June, on the same dates as earthquake reports in the Atlantic Ocean off the Florida coast."

"It’s no news that Greenland is in serious trouble — but now, new research has helped quantify just how bad its problems are. A satellite study, published last week in the journal Geophysical Research Letters, suggests that the Greenland ice sheet lost a whopping 1 trillion tons of ice between the years 2011 and 2014 alone."

"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."