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Mercury Up the Creek A pick and a gold pan, the tools of the prospector's trade, firmly embedded in California mythology. What's usually left out of the picture is a good supply of mercury, used by early prospectors and their successors to amalgamate gold and make it easier to recover. For more than 50 years, from the 1880s until after World War I, mercury was mined throughout the Coast Range for use in gold mining and processing. Today, the mercury mines are abandoned and, until recently, more or less forgotten ... »Read More

Bulletin Board Delta Smelt Abundance Patterns: The mystery question puzzling scientists at the State of the Estuary conference this October was why Delta smelt do well in odd years ... »Read More Valley Crossroads A move to reorient solutions to the San Joaquin Valley's salt management and selenium-tainted drainage problems ... »Read More Retiring Farmland to Save Water? Even with irrigation, the summer sun can bake the soil on cotton farms outside Firebaugh to a hardened crust. Another kind of heat ... »Read More A Vote for Estuary Restoration A $995 million state bond measure for Bay-Delta water supply and restoration programs got a big boost in September ... »Read More Ports Tread Lightly on Ocean Floor The "footprint" left on the seafloor by the several 100,000 cubic yards of material dredged from the region's ports and dumped ... »Read More Daylighting Poinsett Creek How to uncover - "daylight" - and restore a strip of long-culverted creek as part of a city-wide storm drain renovation program, while maintaining ... »Read More Wetland Credits & Debits A concept paper proposing creation of a wetland mitigation banking system has got enviros worried, business excited, and biologists ... »Read More Cutting Copper and Saving Pennies Three Silicon Valley manufacturers with historically high metals discharges have shown how pollution prevention measures can both protect ... »Read More Thorny Listing Papers Wildlife managers say there are no conflicts between current efforts to help ducks and two proposed new endangered herbs in the Suisun Marsh ... »Read More