U.S. energy-related carbon dioxide emissions that are linked to global warming dropped 1.1 percent as reported by the Energy Information Administration (EIA). The EIA is the independent statistical and analytical agency within the U.S. Department of Energy. This is the first drop in a decade. One explanation for the drop is that it is due to a slowing economy and a warm winter. Emissions totaled 1,540 million metric tons in 2001, down from 1,558 million metric tons in 2000. This is the first drop since the 1991 drop of 1.2 percent. Energy-related CO2
emissions account for 81 percent of total U.S. greenhouse gas emissions.
While industrial emissions were down by 9.1 percent because of a slower economy, the transportation sector increased emissions of CO2 by 0.6 percent. The residential sector emissions also grew by 1.8 percent because of increased housing starts.