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Increases in atmospheric greenhouse gases have been measured.
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Evidence suggests
climate has changed during the 20th century and will continue to
change.
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Climate change could affect
humans and natural ecosystems.
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Due prudence implies that possible remedial
action be reviewed, despite uncertainties.
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In anticipation of policy
development we postulate that climate
must be controlled. Lets make that assumption and move forward to consider how that might
be done.
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