Issue Date: November 23, 2009
Geoengineering Steps Toward Reality
Launching hundreds of billions of 2-foot-wide reflectors into Earth’s orbit. Outfitting an armada of oceangoing ships to gin up clouds. Blasting tons of sulfur into the stratosphere with artillery.
These and other geoengineering schemes that might weaken the effects of human-induced global warming may seem like science fiction. In the past, they’ve been dismissed as far too risky or imprudent for mainstream scientists or policymakers to consider seriously.
Today, however, geoengineering proposals are starting to . . .
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