Rescuers are struggling to save manatees in Florida, there a Red Tide algal bloom has killed 181 of the mammals so far this year.

"KALAMAZOO, Mich. -- The U.S. Environmental Protection Agency is ordering Enbridge Inc. to do additional dredging in the Kalamazoo River to clean up oil from a massive 2010 spill."

"NEW ORLEANS -- BP's cement contractor on the Deepwater Horizon rig has discovered cement samples possibly tied to the ill-fated drilling project that weren't turned over to the Justice Department after the 2010 oil spill, a lawyer for the contractor said Thursday."

"U.S. EPA will head to court [Thursday] to defend its authority under the Clean Water Act to revoke a strip mining permit issued by the Army Corps of Engineers."

"When Uranium Energy Corp. sought permission to launch a large-scale mining project in Goliad County, Texas, it seemed as if the Environmental Protection Agency would stand in its way. To get the ore out of the ground, the company needed a permit to pollute a pristine supply of underground drinking water in an area already parched by drought."

"Hulking, pitch-black mounds resembling coal have grown exponentially in the last week along the banks of the Detroit River in southwest Detroit, prompting concern about potential pollution from residents and legislators on both sides of the river."

"Makers of the specialty cocktails used to crack open the Earth and set loose gobs of oil and gas are sparring once again on behalf of their corner of the energy industry."

"BEIJING — The dead pigs keep bobbing up in Shanghai’s rivers.

"Over the objections of environmentalists, community groups and neighboring Long Beach officials, Los Angeles harbor commissioners on Thursday approved a $500-million rail yard that could dramatically boost business but also drive more noise and dirty air into schools, parks and low-income neighborhoods."

"BILLINGS, Mont. -- Environmental groups filed a federal lawsuit Wednesday against the owners of Montana's massive Colstrip coal-fired power plant, seeking to force the installation of more pollution controls at the decades-old facility."

"RICHMOND -- The Environmental Protection Agency will not appeal a federal district court’s ruling declaring it is illegal for the EPA to regulate storm water as a pollutant as it flows into Virginia waterways."

"RICHLAND, Wash. -- Washington's governor prepared to travel to the nation's most contaminated nuclear site to learn more about leaking radioactive waste tanks there Wednesday, a day after federal officials acknowledged budget cuts may disrupt efforts to empty the aging vessels."

"Forty years ago, when North Carolina banned using deep wells to permanently dump industrial waste, some thought the issue had been decided for good. Now state lawmakers who want to turn North Carolina into the nation’s next fracking hotspot are reopening the case for injecting brines and toxins deep underground."

"NEW YORK -- Just across the East River from midtown Manhattan’s shimmering skyscrapers sits one of the nation’s most polluted neighborhoods, fouled by generations of industrial waste, overflow from the city’s sewage system and an underground oil leak bigger than the Exxon Valdez spill."

In the World War I era, the U.S. Army thought it was disposing of dangerous toxic chemicals in waste pits located near what is now American University. Then residential houses were built on top of the site. Today, the danger and efforts to clean it up are still a problem.