Day

September 21, 2016
21
Sep

Wetland Protections in Transition

Environmentalists are heading warily into the fall following two regulatory developments that they fear may cramp efforts to protect California’s wetlands. In June the State Water Resources Control Board released a draft document overhauling wetlands protection procedures but leaving open the question of exactly which wetlands are eligible for protection. In the same month the U.S. Supreme Court ruled that landowners may mount court challenges to U.S. EPA or Corps of Engineers jurisdictional determinations before a permit is issued, potentially generating a torrent of wetlands-related litigation.
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21
Sep

Teachable Moments

The Ocean 102 lab at Diablo Valley College in Pleasant Hill is a proper marine biological laboratory. It smells faintly of seaweed and formaldehyde, while fearsome, plastic versions of marine predators hang from the ceiling. The Peterson benthic grab, a heavy jaw-like affair attached to a long rope sits in the supply room.
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21
Sep

Nutrient Nuances Modeled

San Francisco Bay is becoming less opaque as the sediments power-washed into the Estuary by miners so long ago gradually disperse. This lets sunlight penetrate deeper into the water, creating more favorable conditions for the kind of problematic algal blooms that can shut down crab fisheries and keep people and their pooches out of the water. Scientists have collaborated on some new computer models, however, that may help them predict where and when nutrients, like nitrogen and phosphate from discharges and runoff, may exacerbate the situation.
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