The UnAustralian

Tuesday, February 24, 2004
Reality vs Propaganda

I've just seen a transcript of a debate between global warming skeptic Ian Plimmer and Robert Watson (old head of the IPCC).

I don't have time to go into details about how Ian Plimmer is getting it badly wrong, so I'll just focus on one particular line which he appears to be pushing; that there is a conflict between the atmospheric scientists and the geologists.

From the debate, he states:

This is where the IPCC needs input from geologists, who, almost to a person, would disagree with that view.

The view which he refers to, is whether or not human activity significantly effects the earth's climate.

This statement, is IMHO, complete bullshit. For example, we only need to look at a recent statement by the American Geophysical Union:

Human activities are increasingly altering the Earth's climate. These effects add to natural influences that have been present over Earth's history. Scientific evidence strongly indicates that natural influences cannot explain the rapid increase in global near-surface temperatures observed during the second half of the 20th century.

Human impacts on the climate system include increasing concentrations of atmospheric greenhouse gases (e.g., carbon dioxide, chlorofluorocarbons and their substitutes, methane, nitrous oxide, etc.), air pollution, increasing concentrations of airborne particles, and land alteration. A particular concern is that atmospheric levels of carbon dioxide may be rising faster than at any time in Earth's history, except possibly following rare events like impacts from large extraterrestrial objects.

Doesn't sound like the geologists disagree almost to the person.

Jason Soon has an interest post from an climate change agnostic POV which can be read here.
| 6:35 PM