"Corey Lequieu became the first defendant Tuesday to be sentenced in the federal conspiracy case stemming from the armed takeover of the Malheur National Wildlife Refuge in January."

"On the night in early June 2008 when Barack Obama had finally won enough contests to secure the Democratic nomination for president, he marked the momentous occasion with a prediction."

"Marc Edwards took up the cause of water activists in Michigan a year ago — and earned their trust. Now he’s fighting to keep it."

"To offset lost mining jobs, officials, business leaders and environmentalists are setting aside political feuds to try to create an entrepreneurial economy."

"Even as thousands of residents of southern Louisiana are returning to their flood-damaged homes, more danger could lie ahead as rain continues to fall and the full extent of the damage can't be known, according to state emergency response officials."

"Scientists working with sophisticated DNA sequencing technology think they may have solved a 20-year-old mystery of what has caused thousands of Alaska’s wild birds to be afflicted with deformed, twisted beaks."

"Think of Mesa Verde National Park and you probably imagine iconic cliff dwellings sketched in sandstone. Those homes were built by the Ancestral Pueblo before they left the area in the late 13th Century. Climate change may be putting some of those dwellings in jeopardy."

"Top aides in the McCrory administration will have to testify under oath about a 2015 meeting on how to word do-not-drink warnings to well owners who live near Duke Energy coal ash ponds."

"Under fire from water agencies who were losing millions of dollars in lost water sales, Gov. Jerry Brown's administration two months ago dropped all mandatory water conservation targets and allowed cities, water districts and private water companies across the state to set their own targets."

"Climate change is never going to announce itself by name. But this is what we should expect it to look like. That’s what many scientists, analysts and activists are saying after heavy rains in southern Louisiana have killed at least 11 people and forced tens of thousands of residents from their homes, in the latest in a series of extreme floods that have occurred in the United States over the last two years."