National Public Radio: Many environmental activists, scientists and business leaders worry that a recession and two wars will force President-elect Barck Obama to put his ambitious plans to tackle global warming on the backburner. Obama reiterated his campaign pledge at a governors conference on climate change last week. “We’ll establish strong annual targets that set us on a course to reduce emissions to their 1990 level by 2020, and reduce them an additional 80 percent by 2050,” he said in a video …