LA Times: Thanks to an 11-day heating streak, October 2008 has become Los Angeles’ toastiest in history. Climatologists called it an upset because they expected a cool down in the last few days of the month. But because of the heat-trapping effects of urban development and global warming, L.A. has been getting progressively warmer in the last century. “The California climate system, like some Big League sluggers, is on steroids,” said William Patzert, a climatologist for the Jet …