If we are to believe the 400,000 years of the Vostok Antarctica ice core records, the Earth's natural climate cycle has suffered four very long Ice Ages, each about 80,000 years and each followed by a short warming-up period of about 10,000 years. By my arithmetic, with the last Ice Age ending about 10,000BC, we could, no matter what we do, well be on the way to the next one.
To date, I have not heard one debate that has addressed the results of the Vostok ice core records. My suspicion is that scientists promoting the idea of global warming as being wholly due to mankind are guilty of turning a blind eye to Earth's natural climate cycle, but why?
Perhaps they do not know what causes the switches, but can model away on the data from the past 100 years with great success. The debate has been stage managed.
Rennie Witt Ronniewitt@talktalk. net