"It's wild times in the watershed. The most happy-go-lucky denizen of Bay Area creeks is back, after a hiatus of at least three decades: the river otter."

"Louisiana and the nation can't wait 50 years to restore economically and environmentally important coastal wetlands, a task that is likely to cost $50 billion or more, says a new report released Monday by a team of state and national environmental and social scientists and engineers. And the rest of the nation should shoulder part of the cost, the report says."

"BALTIMORE -- The Army Corps of Engineers unveiled its restoration plan for Chesapeake oysters on Tuesday, a bay-wide look that officials said moves past piecemeal efforts and selects targets for large-scale efforts."

"Philadelphia's $2 billion plan to manage its storm water with green methods - porous pavement, green roofs, and a plethora of trees -- got the official nod Tuesday from the U.S. Environmental Protection Agency."

"Dave Mauser walked the edge of a mudflat, peering underneath the dried brown rushes where one coot after another had gone to hide and then die."

"ALBUQUERQUE -- New Mexico, Arizona and more than two dozen other states could face increased threats to water supplies if they don't do more to plan for rising temperatures and changes in rain and snowfall patterns, according to an analysis released Thursday by the Natural Resources Defense Council."

Chicago's "sewer network, built and maintained by the Metropolitan Water Reclamation District of Greater Chicago, is a behemoth among urban wastewater collection systems. Girded by more than 109 miles of deep underground pipe, Chicago's massive 'Tunnel and Reservoir Plan' (TARP) ranks among the nation's largest public works projects, both in term of scale and cost, estimated at $3.58 billion."