"The head of Yosemite National Park will retire after employees complained that he created a hostile workplace by allowing bullying, harassment and other misconduct — allegations that have been made in other national parks, officials said Thursday."

"Pre-dawn purple and gold and orange swirl deep overhead as the waterfront stirs to life. It's 6 a.m. at Menekaunee Harbor, where the Menominee River empties into Lake Michigan: Workers file into buildings, heavy machinery fires up and 18-wheelers roar and belch and hit the road."

"The Chemical Safety Board brought voted Wednesday evening to approve the final report and recommendations that were the result of a more than two and a half year investigation into a Charleston chemical leak."

"Maryland’s long-awaited fracking regulations would ban drilling in three watersheds in Western Maryland and require extensive safeguards around drilling sites, protections that Secretary of the Environment Ben H. Grumbles called 'the most stringent' in the country."