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“Al Gore’s recent movie, “An Inconvenient Truth”, clearly shows that the profligate use of fossil fuel is having a devastating effect on our climate system. The United States, with 5% of the world’s population, contributes 25% of the CO2 in the atmosphere from burning coal, oil and natural gas. Recent evidence suggests that the amount of CO2 in the atmosphere is increasing faster than the most pessimistic estimates of only a few years ago. If we have to reduce the use fossil fuels with nuclear energy and renewables, how will this change transportation and delivery of the mail? Can we reverse the trend of increasing atmospheric CO2 and avert climate catastrophe?”
