Wednesday, March 02, 2011

Australian scientist lectures on climate and energy security » News & Publications » The Institute of World Politics

Through various graphs showing temperature trends up to millions of years ago, Mr. Archibald showed that there has not been a change in average temperature since 1976, when the Great Pacific Climate Shift triggered the normal thirty-year cycle of warmer weather from colder temperatures. In fact, he explained, it was much warmer 1000 years ago - so much so that the sea level was a meter higher than it is at present.

Mr. Archibald then posed the question, for which he is famed in the climate debate, of whether carbon dioxide was linked to global warming. While the carbon dioxide heating effect is real and related to warming, it is minuscule and logarithmic.

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