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…showed last 75 words of 324 total…change. Instant cuts in CO2 emissions must be made. Electricity production is a major source of CO2. To tackle global warming, we therefore have to look for ways of producing and using electricity which significantly lessen the CO2 burden. And in deciding how best to tackle global warming, we have to take into account both the cost effectiveness of alternatives to fossil fuels, the cost of their environmental impact and their impact on global security