text: And...I noticed you did not back up any of your other many erroneous claims. Care to answer this with more personal attacks on me - or at least who you (wrongly) seem to think I am? That says a lot about the strength of your argument.
  
  Climate change is real, its caused primarily by human emissions, and its getting to be a serious problem. The sooner we act, the better off we’ll be. This is what the IPCC says, along with the American Meteorological Society, the American Physical Society, and 29 other US scientific societies: https://www.aip.org/fyi/2016/scientific-societies-issue-statement-congress-reaffirming-climate-science-consensus
  
  You’ll find that is the message of Dr. Hansen’s book you reference. A clear description of the science that's digestible for the general public is "Earth: The Operator's Manual." You can find it on Youtube. Dr. Alley surely got so rich doing this PBS documentary. That's probably why he gave up a lucrative petroleum geology gig to pursue climate science!