re: My personal feeling on precision (not accuracy - still waiting for you to figure out what "accuracy" means)...
Oh looky:
"He agrees that human activities have increased the amount of carbon dioxide in the atmosphere by about 30 percent. He parts company with the others when it comes to whether these facts are related. It's not that humans have no effect at all on climate. "They do," he admits, though with as much impact on the environment as when "a butterfly shuts its wings." "
Maybe Tom is a fan.
Tom said he thought human emssion of CO2 was less than 50% and I posted that I thought it was about 50% or more. Looks like Tom has someone who is authority to back up his claim.
Oh well, I guess go back and read the rest of sciam article.