On May 5, 2009, EPA Administrator Lisa Jackson signed a proposed rule to implement changes in the federal Renewable Fuel Standard (RFS) program required by the 2007 Energy Independence and Security Act (EISA).
Congress created the RFS–commonly known as the ethanol mandate–in the 2005 Energy Policy Act. The leading rationale then was energy security. It was supposed to reduce our dependence on foreign oil. EISA increased the size of the mandate from 7.5 billion gallons a year in 2012 to 36 billion gallons a year in 2022.
In addition, EISA established greenhouse gas (GHG) reduction standards that fuels must meet in order to qualify as “renewable.” Arguably, this was the first regulatory global warming policy that Congress ever enacted. Well, how much global warming will it avert? Answer: Too little for scientists to detect even if the new mandates are enforced throughout the 21st century.…
Continue ReadingYesterday’s MasterResource post looked at the potential climate impacts of the proposed Waxman-Markey Climate Bill. But I limited my analysis to only U.S. actions—after all, Waxman-Markey can’t mandate international man-made greenhouse gas reduction timetables. But, what would happen if the rest of the world wanted to join in?
The Bottom Line
The ability of the industrialized world, through emissions reductions alone, to impact the future course of global climate is minimal. If the U.S., Canada, Australia, Japan, Europe, and former Soviet countries all limited their emissions of greenhouse gases according to the schedule laid out under Waxman-Markey—a monumental, unexpected development—it would, at most, avoid only a bit more than one-half of a °C of projected global warming (out of 4.5°C—or only about 10%). And this is under worst-case emissions assumptions; middle-of-the-road scenarios and less sensitive climate models produce even less overall impact.…
Continue ReadingEditor Note: Using mainstream models and assumptions, Mr. Knappenberger finds that in the year 2050 with a 83% emissions reduction (the aspirational goal of Waxman-Markey, the beginning steps of which are under vigorous debate), the temperature reduction is nine hundredths of one degree Fahrenheit, or two years of avoided warming by 2050. A more realistic climate bill would be a fraction of this amount. The author will respond to technical questions on methodology and results and invites input on alternative scenarios and analyses.
“A full implementation and adherence to the long-run emissions restrictions provisions described by the Waxman-Markey Climate Bill would result only in setting back the projected rise in global temperatures by a few years—a scientifically meaningless prospect.” (from below)
The economics and the regulatory burdens of climate change bills are forever being analyzed, but the bills’ primary function—mitigating future climate change—is generally ignored.…
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