In an answer to one of 14 sci-tech questions posed by Scientific American and ScienceDebate.org to the two Presidential candidates, Republican Mitt Romney offered his most detailed view yet on the issue of global warming. In his answer, Romney seems to walk back his late 2011 statements “that we don’t know what’s causing climate change on this planet,” and an earlier statement in which he said he thought global warming was occurring but “I don’t know if it’s mostly caused by humans.”
This is a companion discussion topic for the original entry at https://talkingpointsmemo.com/?p=159960