New Effort to Quantify ‘Social Cost’ of Pollution

By Matthew L. Wald

June 18, 2013

WASHINGTON — The Obama administration is making a second attempt to systematically account for the dollar damage from greenhouse gas pollution, even with no consensus on how to forestall global warming or whether to do so.

Supporters of the idea acknowledge the tremendous difficulties of trying to translate slippery estimates into a single mathematical factor, difficulties that perhaps help explain why there is little hope of consensus now on climate policy.

The new effort is an update to an estimate for the awkwardly named “Social Cost of Carbon,” a range of costs, stated in dollars per ton, that carbon dioxide emissions are thought to impose on future generations. When the government totes up costs and benefits for a variety of proposed regulations, the Social Cost of Carbon is plugged into the calculation to decide how to write the regulation.

ARB claims diesel engine controls reducing climate change impact in California

June 14, 2013

By Frank Maccioli

The California Air Resources Board (ARB) yesterday announced that the results of a new study show that the state’s regulations to control diesel engine emissions are also benefitting climate change efforts.

The project was led by Dr. Veerabhadran Ramanathan of the Scripps Institution of Oceanography at the University of California, San Diego, in conjunction with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory and Pacific Northwest National Laboratory. The study estimated that the black carbon reductions from air regulations also reduced carbon dioxide emissions by 21 million metric tons annually. That’s equivalent to removing more than 4 million cars from California’s roads every year.