"In Oklahoma, now the country's earthquake capital, people are talking nervously about the big one as man-made quakes get stronger, more frequent and closer to major population centers. Next door in Kansas, they're feeling on firmer ground though no one is ready yet to declare victory."

"The amount of man-made heat energy absorbed by the seas has doubled since 1997, a study released Monday showed."

"Hillary Clinton got her biggest applause of the night during Sunday's Democratic presidential debate when she accused Republican Michigan Gov. Rick Snyder of not caring about poor African-Americans drinking contaminated water."

"The U.S. Environmental Protection Agency’s top Midwest official said her department knew as early as April about the lack of corrosion controls in Flint’s water supply — a situation that likely put residents at risk for lead contamination — but said her hands were tied in bringing the information to the public."

"Michigan Gov. Rick Snyder late Tuesday activated the National Guard to help distribute bottled water and filters in Flint as it deals with a drinking water crisis that began months ago."

"The Republican-controlled House approved a bill Tuesday blocking new Obama administration regulations designed to reduce the environmental impact of coal mining on the nation's streams."

"NEW ORLEANS — The first-ever federal regulations for large-scale fish farming in the ocean were issued Monday, opening a new frontier in the harvesting of popular seafood species such as red drum, tuna and red snapper."

"The biggest icebergs breaking off Antarctica unexpectedly help to slow global warming as they melt away into the chill Southern Ocean, scientists said on Monday."