Associated Press: President Barack Obama is planning a major push using executive powers to tackle the pollution blamed for global warming in an effort to make good on promises he made at the start of his second term. "We know we have to do more -- and we will do more," Obama said Wednesday in Berlin.
Obama's senior energy and climate adviser, Heather Zichal, said the plan would boost energy efficiency of appliances and buildings, expand renewable energy and use the Environmental Protection Agency's authority under...