"Humans are now fishing at least 55 percent of the world’s oceans — an area four times larger than the area occupied by humanity’s onshore agriculture. That startling statistic is among the findings of a unique, high-tech collaboration that is providing a massive amount of new data about global fishing operations."

"Frank Lyko, a biologist at the German Cancer Research Center, studies the six-inch-long marbled crayfish. Finding specimens is easy: Dr. Lyko can buy the crayfish at pet stores in Germany, or he can head with colleagues to a nearby lake."

"Seven years after Dynegy Inc. scrapped one of the last coal plants in downstate Illinois, environmental groups are accusing the company of failing to prevent toxic waste stored nearby from seeping into the state’s only National Scenic River."

"PORTLAND, Maine — Federal fishing regulators on Tuesday approved a compromise they said would expand the amount of coral habitat preserved in the Atlantic Ocean while also protecting fishing interests."

"Environmental Protection Agency Administrator Scott Pruitt announced late Friday that he will not scrap the agency’s 2014 determination that a large-scale mining operation could irreparably harm Alaska’s Bristol Bay water­shed."

"The U.S. Department of State is spearheading a plan to tackle the decade-long problem brewing in the transboundary Kootenai River watershed, where toxic contaminants leaching from upstream Canadian coal mines into Montana’s watersheds continue to poison the prized aquatic ecosystem."

"America’s catch of cod is at an all-time low, but the fishery might finally experience a rebound in the coming fishing year."

"By burning fossil fuels, we have already raised the concentration of carbon dioxide in the atmosphere by 40 percent, and we’re on track to increase it by much more. Some of that gas may mix into the world’s inland waters, and recent studies hint that this may have profound effects on the species that live in them."

"The federal government's top fisheries experts say that three widely used pesticides — including the controversial insecticide chlorpyrifos — are jeopardizing the survival of many species of salmon, as well as orcas that feed on those salmon."