Asian New International: Human activity is indeed responsible for the rapid warming of the 20th century, says a new report issued by the US Climate Change Science Program. The report concluded that computer models do effectively simulate climate. The report is the 10th of 21 due to be issued by the body, which the skeptical George Bush administration set up late in 2002 to review the validity of climate-change science before making policy decisions. At the time, environmentalists accused the …