"Conowingo Dam owner Exelon Corp. and the state of Maryland have reached a settlement under which the Chicago-based energy company will invest $200 million to clean up the Susquehanna River, and, by extension, the Chesapeake Bay."

"Federal officials yesterday asked the Supreme Court to keep records related to Endangered Species Act decisions under lock and key. The government said a lower court's ruling that certain draft documents should be publicly disclosed under the Freedom of Information Act could have a chilling effect on discussions around federal decisionmaking."

"In 1849, Harriet Tubman escaped from the Eastern Shore farm where she was enslaved. Over the next several years, she would return 13 times, rescuing more than 70 enslaved relatives and friends, ... She has become a hero, with two national parks established in her honor, ... . But time has not been as kind to the lands that Tubman left behind, or the descendants of the first free African-American communities that called them home."

"The National Park Service announced Monday it is withdrawing a proposal that could have made protesters repay the federal government for the cost of security at demonstrations."

"Look up the next time you’re in a park — any park — in the Mid-Atlantic. You’re likely to see vines climbing toward the treetops. These invasive vines can be deadly — not just to the trees they are overtaking, but to the larger ecosystem."

"While the Bureau of Land Management is adopting more wild horses and burros than ever, BLM acting chief William Perry Pendley says it will take many years and billions of dollars to reduce growing herds on federal rangelands to sustainable levels."

"In a move that is raising questions about the future of Yosemite National Park, the National Park Service announced Wednesday that it was reassigning park Supt. Mike Reynolds, a 34-year park service veteran who grew up in Yosemite."

"Native American leaders from New Mexico are opposing plans that call for storing in the desert Southwest tons of spent nuclear fuel from power plants around the U.S."