Many have problems with predictions of only doom and gloom. Assuming your temperature predictions are close, maybe that will lead to a much better world. More CO2 means more plant and tree growth. Additional new warmer regions become the best farm land in the history of the earth. As the population grows, newer more moderate areas will attract people to help reduce existing city overpopulation issues. If there is more precipitation, droughts will end.
Weather cycles are thousands of years long. Perhaps millions. Both warming and cooling. The speck of time is a blip on that scale. Weather forecasting is often still a 50/50 guess even 24 hours in the future. Predicting 100 years is impossible. Especially with the "long range" (3 to 6 month) forecasts being wrong more than they are right. There are too many unpredictable and unknown external factors that cause a shift.
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Originally Posted by tuccillo
Not exactly. We know we are in an interglacial period that started about 12,000 years ago. The concern is that additional anthropogenic warming on top of the interglacial warming will be an issue. The time scale of concern is primarily the next 100 years or so. Estimates put the anthropogenic warming at about 1C. The concerns are that it could be an additional several degrees by the end of the century. While that may not sound like a lot but that is a global change. The regional impacts would be large and could create political upheaval due to migrations away from those regions most impacted.
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