Demand Plummets For California Pollution Credits

California's ambitious efforts to reduce greenhouse gas emissions are taking a hit as demand has plummeted for pollution credits that are supposed to fund the initiative.  Only about a tenth of the available pollution credits were sold in an auction last week, according to results released Wednesday by the California Air Resources Board. Gov. Jerry Brown's administration says revenue from the program was $600 million short of the $2.4 billion anticipated in the current fiscal year.