"A decades-long effort to clean up the Chesapeake Bay, the nation's largest estuary, is showing signs of success. But scientists now say progress could be hindered by a hydroelectric dam, located on the Susquehanna River in northern Maryland."

"All along the U.S.-Mexico border, about 840,000 mostly low-income, immigrant Latinos have settled in colonias – cheap plots of land outside city limits without basic infrastructure such as water and sewage systems, electricity and paved roads."

"U.S. EPA Administrator Scott Pruitt appears in an agribusiness video urging farmers and ranchers to comment on the proposed repeal of the Obama-era Clean Water Rule, promoting the rollback of a regulation that he sued to stop as Oklahoma attorney general."

"CAMPTI, La. – Deep in the winding mass of crumbling back streets in Campti, Leroy Hayes sets a glass of water from his faucet in a patch of sunlight on the railing of his porch and watches specks of sediment float to the top."

"In the weeks before the Environmental Protection Agency decided to reject its own scientists’ advice to ban a potentially harmful pesticide, Scott Pruitt, the agency’s head, promised farming industry executives who wanted to keep using the pesticide that it is “a new day, and a new future,” and that he was listening to their pleas."

"A proposal for the first oil and gas drilling in federal offshore waters of the Arctic took a step forward Thursday as regulators released a draft environmental impact statement, which reflects concerns about the effects of the project on marine life and local communities."

"VICTORVILLE, CA - Once a fighter jet training base critical to the Cold War, little remains of the former George Air Force Base but rows of dilapidated houses, a dismantled military hospital and dangerous chemicals from pesticides, jet fuels and other hazardous wastes that have poisoned the water for decades."

"Even after the Flint scandal reawakened the nation to the dangers posed by lead drinking water pipes, the U.S. Environmental Protection Agency appears to be in no rush to strengthen federal health standards."

"The Trump administration is expanding its review of greenhouse gas emissions standards for cars."

"As the U.S. growing season entered its peak this summer, farmers began posting startling pictures on social media: fields of beans, peach orchards and vegetable gardens withering away."