Scientific research is now producing mounting evidence of a causal link between the increasing frequencies and intensities of weather-related disasters and anthropogenic climate change. Global warming is a fact and will further accelerate in the coming decades. A British study (Stott et al. 2004), for example, shows that human influence has already at least doubled the risk of a heatwave exceeding the magnitude of the European heatwave in 2003. Another study modelling the effects of climate change
on hurricanes has found that, due to global warming, the maximum wind speed of hurricanes and the associated precipitation will increase (Emanuel 2005). tte number of major tropical storms has already increased in all ocean basins (Webster et al. 2005). ttere is now evidence that, evidence that, again due to global warming, sea surface temperatures have already increased by about 0.5°C (Barnett et al. 2005). Hoyos et al. (2006) show that of all the factors that drive a major tropical storm, only the steady increase in sea surface temperatures over the last 35 years can account for the rising strength of storms in six ocean basins around the world. So the logical link between the fact that global warming has increased sea surface temperatures and the fact that only this increase can explain the greater intensities of tropical storms results in the suggestion that anthropogenic climate change has already increased the intensity of these storms, ttis implies that if sea surface temperatures continue to increase due to global warming, we have to expect even more loss and damage.
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