"Environmental groups say they will sue Duke Energy for not telling the public what would happen if any of its dozens of coal ash dams fail."

"Environmentalists have sued a U.S. agency to try to stop it from allowing oil and gas drilling on a vast stretch of federal land in Nevada, where the government is reversing protections put in place nine months ago under the Obama administration."

"The Sierra Club sued the U.S. Environmental Protection Agency in federal court on Monday over what it says is the regulator’s failure to respond to information and records requests under transparency laws, court papers show."

"Three environmental groups sued the Trump administration Thursday over its decision to delay a new regulation to increase fines for automakers who violate efficiency rules."

"Environmental groups are suing the Trump administration over its decision to remove the Yellowstone grizzly bear’s protections as a threatened species."

"Activist group Sea Shepherd on Tuesday pulled the plug on its annual campaign to disrupt Japanese whaling, saying it can no longer match the country's military and economic power."

"Federal officials and contractors months ago surreptitiously began what appears to be preparation work for construction of border wall on the Santa Ana National Wildlife Refuge in South Texas. Word recently got out and has galvanized opposition to that plan – and to the way it has been carried out."

"Energy Transfer Partners LP has sued Greenpeace International, Earth First! and other groups, accusing them of inciting terrorist acts and vandalism to generate publicity and raise money for their causes while hampering the Dakota Access pipeline majority owner’s ability to raise money for projects."

"An environmental group launched an advertising campaign Monday to oppose a pair of bills meant to make it more difficult for federal agencies to write regulations."

"The head of an animal conservation NGO who had received numerous death threats has been shot and killed by an unknown gunman in Tanzania."