California

"California's San Joaquin Valley has lost 60 million acre-feet of groundwater since 1961, according to a new federal study. ... The Central Valley is America's largest farming region; it's also the single-largest zone of groundwater pumping."

"A fast-growing kelp from the Far East has spread along the California coast from Los Angeles to San Francisco Bay, worrying marine scientists and outpacing eradication efforts."

"The blue, cloudless skies over the Coachella Valley most days hide a darker truth: The area has serious, chronic air pollution challenges."

"Wine makers are shaking things up in their vineyards. Some of them use natural and organic methods to control pests and weeds instead of using pesticides. Now, one winery has discovered a unique, natural way to prune their grape vines."

"San Joaquin Valley farms are laying off workers and letting fields lie fallow as their water ration falls."

California this week put in place the toughest restrictions in the world on smog from ships, requiring reductions of more than 80 percent of soot from foreign and US ships out to 24 miles from shore. Tankers, cargo vessels and cruise ships burn bunker fuel, which has sulfur content as much as 1,000 times higher than on-road diesel. The US is moving forward to copy California's rules by 2015. Paul Rogers reports in the San Jose Mercury News.

"Los Angeles will eliminate the use of electricity made from coal by 2020, replacing it with power from cleaner renewable energy sources, Mayor Antonio Villaraigosa said."