Time: The jury is still out on whether humans cause climate change, Republican Rep. Paul Ryan said at a debate Monday.
"I don`t know the answer to that question," Ryan said, in response to a question about whether humans are responsible for the warming of the planet. "I don`t think science does, either." His remarks were reported by the Associated Press.
Ryan, who is running for reelection in southern Wisconsin against Democrat Rob Zerban, argued that "we`ve had climate change forever" and that proposals...