Reuters: The climate change bill being drafted in the U.S. House is ripe for improvement, said Agriculture Secretary Tom Vilsack on Thursday, but he vowed farms and forests will play a central role in controlling greenhouse gases despite skepticism among lawmakers. U.S. farm groups, along with Democrats and Republicans on the House Agriculture Committee, have been sharply critical of the bill they say threatens to leave farmers in the lurch. Representative Collin Peterson, the chairman …