Here he is discussing the topic with Charlie Rose (about 9 minutes):
And he gave a lecture at CalTech in 2003, entitled Aliens Cause Global Warming that is also worth your time.
As a result of his anti-CAGW activism, he was, of course, labeled a "denier," and vilified.
In addition to Mr. Crichton's opinion, I'd read a lot but still I hadn't reached a definitive conclusion on the question of whether the burning of fossil fuels was having a measurable, detrimental effect on global climate. Is the world getting warmer? Quite possibly. Is it due, in whole or in part, on increased CO2 due to human consumption of fossil fuels? I didn't know. Is a warmer Earth a bad thing? I didn't know. I suspected that it wasn't, and I was very skeptical of the positive-feedback argument the doomsayers were predicting.
Day before yesterday I was made aware of another skeptic - Burt Rutan. Burt is the designer of Voyager, the first airplane to circumnavigate the globe without refueling, and of SpaceShipOne, winner of the Ansari X Prize. Burt Rutan's argument is that, as an aeronautical engineer, he has analyzed test flight data for decades. All of the climate data had been analyzed by scientists. What would an engineer make of it?
The result was a 98-page PowerPoint presentation (also available as a PDF) that covers five specific issues propounded by Climate Scientists:
- Recent burning of fossil fuels suddenly and dangerously increased CO2 beyond previous levels.
- Human CO2 emissions causes greenhouse warming.
- Dangerous, sudden global warming occurred the last 50 years.
- The current temperature is too hot, and further warming is BAD.
- It is more difficult to adapt to climate changes than to attempt to control them.
He made a presentation of his conclusions at the 2009 Oshkosh fly-in, entitled Non-Aerospace Research Quests of a Designer/Flight Test Engineer, stating:
I put myself in the (Those who fear expansion of Government control) group, and do not hide the fact that I have a clear bias on [ Anthropogenic global warming (AGW)]. My bias is based on fear of Government expansion and the observation of AGW data presentation fraud - not based on financial or any other personal benefit. I merely have found that the closer you look at the data and alarmists' presentations, the more fraud you find and the less you think there is an AGW problem... For decades, as a professional experimental test engineer, I have analyzed experimental data and watched others massage and present data. I became a cynic; My conclusion – "if someone is aggressively selling a technical product whose merits are dependent on complex experimental data, he is likely lying". That is true whether the product is an airplane or a Carbon Credit.I'm convinced. CAGW is complete bullshit.