Last week (February 25, 2009), Dr. James Hansen, the most influential scientist in the alarmist camp, testified before the House Ways & Means Committee on “Scientific Objectives for Climate Change Legislation.” In oral remarks, Hansen, who spoke as a faculty member of Columbia University’s Earth Institute rather than as an employee of NASA, said the scientific objective of climate policy should be to lower atmospheric concentrations of carbon dioxide (CO2) from 385 parts per million (ppm) to 350 ppm or less. This, as he surely knows, is an impossible goal barring radical breakthroughs not just in energy production but also in air capture of CO2.
Even if by 2050, the United States, Europe, Canada, Japan, and former Soviet Union achieve zero net emissions and developing countries reduce their carbon intensity to 62% below 2005 levels, this would only be enough to…