"KITTS HUMMOCK, Del. — All along the shoreline, for as far as you can see, slick shells of horseshoe crabs glisten in the fading daylight. Listen closely, and you can hear their subtle clacking and the whisper of water over their carapaces."

"The soft-shell clams that are harvested by hand and raked from the mud flats of Maine are becoming less plentiful, and the downward trend jeopardizes one of New England’s oldest and most historic coastal industries."

"A joint U.S.-Cuban expedition to explore the island's coral reefs uncovered a surprisingly healthy ecosystem and large schools of mackerel with significant commercial value, scientists involved in the mission said Tuesday."

"Michigan Attorney General Bill Schuette called for a deadline to close a controversial portion of an oil pipeline that runs along the bottom of the Straits of Mackinac, a channel that connects two of the Great Lakes. The pipeline has had more than two dozen leaks over its lifespan, and parts of its outer coating have come off."

"An Office of Inspector General report on the National Park Service (NPS) found that the agency did not change records on crowd sizes at the inauguration nor did its public affairs officials leak information to the press."

"The Trump administration took a big step Monday toward clearing the way for construction of two giant tunnels that would siphon water from the Sacramento River and send it south to farms and cities."

"The Trump administration on Tuesday took a major legal step toward repealing a bitterly contested Obama-era regulation designed to limit pollution in about 60 percent of the nation’s bodies of water."

"Vast amounts of river-borne sediment are trapped behind the world’s large dams, depriving areas downstream of material that is badly needed to build up the marshes and wetlands that act as a buffer against rising seas."

"In September 2011, after 20 years of planning, workers began dismantling the Elwha and Glines dams on the Elwha River in northwestern Washington state. At the time, it was the largest dam removal project in U.S. history, and it took nearly three years for both barriers to be dismantled and for the river to once again flow freely.

"South Carolina’s republican governor has publicly come out in opposition to seismic testing off the southeastern coast, siding with the state’s fishermen, business community, and environmentalists."

"Toxic chemicals in the Great Lakes have dropped but invasive species and algal blooms threaten the lakes' ecosystems and keep them from being truly great, says a new report from the U.S. and Canadian governments."