The National Association of Manufacturers and the federal government petitioned the U.S. District Court for the Northern District of California last week to defeat a public trust claim that seeks a court order to force federal agencies to take steps to limit greenhouse gas emissions. If successful, the lawsuit would result in a requirement that the government implement a strategy by January 2013 that would keep domestic CO2 emissions from exceeding September 2011 levels and reduce emissions by at least six percent a year through 2099, until atmospheric levels of CO2 return to 350 parts per million. A hearing is set for November 28 to consider NAM’s motions and the government’s motion seeking dismissal of the lawsuit against the Environmental Protection Agency and the departments of Agriculture, Energy, Interior, Commerce, and Defense.