"A gray whale baby boom appears to be under way along Alaska's arctic coast. Scientists tracking marine mammals in the Chukchi Sea report an unprecedented number of sightings of gray whale calves in July."

"On a hot summer day, it's hard to see how the Conowingo Dam could hurt the Chesapeake Bay. Anglers line the shore below the 94-foot high impoundment, casting out into the gently roiling Susquehanna River for rockfish breaking the water. Yet unseen, on the other side of the dam, millions upon millions of tons of sediment and nutrient pollution are slowly building up that could wreak havoc on the bay if they get through."

"The Pacific Northwest may be the epicenter of U.S. coffee culture, and now a new study shows the region's elevated caffeine levels don't stop at the shoreline."

"The Environmental Protection Agency on Wednesday approved a first-of-its-kind program to cut phosphorus levels in Wisconsin's lakes, rivers and streams."

"State and federal leaders on Wednesday reaffirmed their commitment to build a giant pair of tunnels to divert the Sacramento River out of the Delta."

"Thousands of people consume fish from Washington, D.C.’s highly polluted Anacostia River, despite safety warnings."

"FRESNO, Calif. — California Gov. Jerry Brown is set to reignite the state's water wars when he makes the long-awaited announcement next week about plans to build a massive twin tunnel system to carry water from the Sacramento-San Joaquin River Delta to farmland and cities."

"Perhaps the most unsung patch of heaven in New York City is a tiny sliver of riverfront parkland tucked between a metal-recycling yard and a giant wholesale produce market, on the far side of a six-lane highway and a pair of active freight train tracks. Hunts Point Riverside Park, a 1.4-acre speck in the South Bronx, opened a few years ago on what had been a filthy, weedy street end."

"Back in the late 1700s, when Baltimoreans got their water from nearby streams, springs and wells, every household was ordered to keep two leather buckets filled to fight fires. That precaution might come in handy again, as the water main break Monday near the Inner Harbor delivered a disruptive reminder to downtown businesses and commuters of just how decrepit the regional system supplying the vital liquid has become."