How To Cool The Arctic - John Nissen
How to Cool the Arctic, John Nissen, December 2011:
Which is the most viable method of emergency cooling of the Arctic to prevent runaway global heating? There are several approaches for cooling the Arctic and saving the sea ice, some involving the reduction of heat flux into the Arctic and others involving the increase in heat flux out.
Probably we will need a combination.
Reduction of heat in
1. SRM (solar radiation management, by increasing albedo to reflect more sunlight back into space)
1.1 Stratospheric aerosols
1.1.1 SO2 *
1.1.2 TiO2 *
1.1.3 Other materials, e.g., silicate (*?)
1.2 Cloud brightening *
1.3 Tropospheric aerosols
1.3.1 Add sulphate aerosols (* if can't get into stratosphere, see 1.1.1)
1.3.2 Don't remove sulphate aerosols
Encourage ships and aircraft to burn fuel with high/higher sulphur content! **
1.4 Increase surface albedo
1.4.1 Cloud seeding to make it snow on bare ground *
1.4.2 LAIR to put frost on ground (* if study shows viable method)
1.4.3 Drain pools, ponds and lakes
1.5 Water brightening
1.5.1 Bubbles in the surface water
1.5.2 Reflective layer, e.g. bio material
2. Reduction of heat transfer into Arctic
2.1 Reduction of river flow into the Arctic Ocean
2.2 Reduction of ocean currents into the Arctic
2.2.1 Slow the current through the Bering Strait (*?)
2.3 Block ice exit
Ice "coolth" out of the Arctic is equivalent to water warmth into the Arctic.
3. TRM (thermal radiation management, by allowing more thermal radiation into space)
3.1 Cloud removal
Arctic Methane: Why The Sea Ice Matters
Methane Hydrates: Hazard or Resource
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Paul Beckwith at Ecoshock
Saving the Arctic Ice
Nathan Currier describes responses to the emergency in the Arctic in the post Saving the Arctic Ice: Greenpeace, Greenwashing and Geoengineering (#1), concluding that geoengineering will have to be part of the action.
AMEG issues policy brief
AMEG issues policy brief, urging immediate government action.