Thursday, January 29, 2009

17 Strategies to Cool the Atmosphere

I advocate building atmosphere processors. Giant, industrail sizes air-refrigerators...pricy but effective.
clipped from

"By 2050, only
stratospheric aerosol injections or sunshades in space have the potential to
cool the climate back toward its pre-industrial state
," earth scientists Tim Lenton and Naomi Vaughan of East Anglia University in England write.

Many global cooling approaches have been floated. The broad range of
the proposals — from injecting the upper atmosphere with sun-blocking
particles to creating plankton blooms by feeding them extra iron to
burying carbon-filled "biochar" in soil — has made comparing them very
difficult. The new study provides the first useful comparisons of a wide variety of geoengineering ideas.

The study did not calculate the costs or environmental impacts of
any of the techniques, but for most of the climate hacks, they could be
large. For those reasons, the authors of the paper recommend reducing
the amount of our emissions, not just banking on geoengineering to bail
us out.

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