Hans Schellnhuber confessed he was not doing his part in “protecting the climate”. When asked if he had ever calculated his own contribution to climate change, Schellnhuber responded:
"Yes, it is quite high because I myself certainly fly 100 times a year.”
And when asked what car he drives:
"A BMW from the new 1 series. It consumes 6 liters diesel [per 100 km], but that’s only half as much as my previous car.”
Science Skeptical then did a rough calculation of Schellnhuber’s CO2 output using the CO2 calculator provided by the German Ministry of Environment. The result, assuming normal consumer behavior, but flying 100 times a year, each flight on average 2 hours long: 50 tonnes of CO2 each year! The average German emits only about 10 tonnes annually.