Guardian: Barack Obama took personal charge of the campaign for historic new climate change regulations on Monday, defending a 30% cut in carbon pollution from power plants from a backlash by business lobbies, conservative groups and Democrats in oil and coal states. The new rules, unveiled by the Environmental Protection Agency, would cut carbon pollution from power plants 30% from 2005 levels by 2030. They represent the first time Obama, or any other US president, has moved to regulate carbon pollution...