The best thing I've read on the topic:
http://rps3.com/Pages/Burt_Rutan_on_Climate_Change.htm
"Anthropogenic Global Warming (AGW) -Study the data and reach your own conclusions!"
"an American aerospace engineer." "a BS degree in aeronautical engineering." Not anybody who is professionally involved with climate and climate effects in any way.
To compare:
http://www2.sunysuffolk.edu/mandias/global_warming/global_wa...
"Some claim that there are 31,000 U.S. scientists and over 850 peer-reviewed papers that challenge the consensus that humans are causing climate change. Skeptical Science gave these claims the greatest benefit of the doubt and came up with this interesting factoid:
31,000 scientists represents 0.1% of US scientists that hold a BS degree or higher
850 papers represents 0.1% of the peer-reviewed papers on the subject of climate change"
Burt Rutan is just one of 0.1% above.
There are a lot of us, and we've been pumping a lot of CO2 into the atmosphere for a long time. Things like the ozone hole or the long-term deforestation of Europe show that humanity is very capable of making substantial changes to the global climate.
The focus on cutting CO2 emissions seems misplaced.