Climate and Energy Assessment of SPS and Alternatives

• Of the technologies considered, coal technology presents the greatest risk to potential global climate changes because of its large emissions of C02« • Impacts of the other technologies should be limited to local and/or regional effects caused by waste heat rejection, with the possible exception of SPS-related rocket exhaust effects on the stratosphere. • Given the gaps in knowledge regarding possible energy-related global climate change, it can be concluded that climate is a consideration in energy policy, but in itself cannot currently be a criterion in decision making.

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