Earth Sciences 2240F/G Lecture Notes - Lecture 13: Thermal Expansion, Ice Core, Ocean Current
20 Apr 2016
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Section c: 100 to 1000 years from now. The warming will completely overwhelm natural systems, wrap the globe in environmental catastrophes, and decimate all species before it"s over. This section will look at some of the best-supported models. Over the next millennium, natural factors will continue to drive climate change, but they will be too small to compete with the effects of greenhouse gases. For example, all together the orbital variations (milankovitch factors) over the next 1000 years will produce cooling in the northern hemisphere, but the maximum effect will be a drop of. 0. 2 c insignificant in the face of a strengthened greenhouse. Figure 27 is the best-estimate of carbon emissions to the atmosphere in the short-term future. The most optimistic projection from our current position on that curve is based upon the assumption that technology exists and is currently being applied to control emissions effectively.
