I think he's afraid that this whole global warming cr*pola is losing traction. There was a report in the Financial Times that the whole carbon indulgences scam is nothing but a scam; Sheryl Crow is telling us how much toilet paper we can use; and the global hysterics and Hollyweirdites fly around in private airplanes while telling the rest of us to walk. I think a lot of people are starting to laugh.
Unfortunately, we are all going to stop laughing when you can't buy incandescent bulbs in a couple years, Interstate highway speed limits are lowered to 50 mph, CAFE averages are raised to 50 mpg and you can't buy any more SUVs, your office is at 82 in the summer and 65 in the winter, carbon taxes raise your gasoline to $8 / gallon, you have to pay $15/day to park in your company parking lot and cement and concrete are hit with a huge CO2 tax to boot, raising everybody's building costs (CaCO3 + Heat --> CaO + CO2). Yeah, that's all real funny.
If we realists don't get organized soon to stop the global panic, all this and more is going to be real within our lifetimes.