Cosmic rays set climate change on Earth, expert says

Stars, not greenhouse gases, are heating up the Earth. So says prominent University of Ottawa science professor Jan Veizer. He knows challenging the accepted climate-change theory may lead to a nasty fight.

It’s a politically and economically loaded topic. Yet, he is speaking out about his published research. “Look, maybe I’m wrong,” he said. “But I’m saying, at least let’s look at this and discuss it.