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Mr President As your advisor on energy policy I believe it is important to inform you on the current status of global warming and of the energy crisis I would also like to suggest changes in the current energy policy Global warming can no longer be given a blind eye Long-term observations in the last century or so reveal that the US climate is changing rapidly According to the National Assessment Synthesis Teams US Global Change Research Program in 2000 the average national temperature has risen by 1F and precipitation has increased 5-10 Although these trends have been more apparent in recent years the projected warming for the 21st century is significantly higher The increased temperatures are also very likely to be accompanied with more extreme precipitation and faster evaporation of water Today we see evidence of global warming via shrinkage of glaciers thawing of permafrost earlier melting and later freezing of ice on lakes and river and shifts in plant and animal systems Models only showing temperature fluctuations of the last 150 years or so appear to show that the current increase in temperature is due to natural trends However data from the last 1000 years from tree rings corals ice cores and historical records show a tremendous spike in temperature increase- starting around the time of the Industrial Revolution alas the rise of burning fossil fuels While all these facts are true the main evidence linking humans to global warming is in the models Exponential rise in surface temperatures is not a natural trend despite models of all climate factors the only way to produce the rate of warming we are seeing now is through unnatural causes A rise in anthropogenic CO2 that is carbon dioxide produced by human activities over the years is the only plausible explanation for the high concentration of greenhouse gases today And although we could stop burning fossil fuels today the carbon dioxide in the atmosphere
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