Aerosol injections are the most prominent
solar geoengineering scheme, and a tempting one: at under $ 10 billion annually the estimated direct costs are low when compared to the trillions of dollars in climate damages they might help to offset.
«My preference is for experiments that have broad utility, both for understanding proposed
solar geoengineering schemes and improving our understanding of the natural climate system,» says Ken Caldeira of the Carnegie Institution for Science in Stanford, California.
Not exact matches
It is a plan for regulating
geoengineering schemes classed as
solar radiation management rather than carbon dioxide removal, even though ocean iron fertilization experiments have generated most controversy (6, 7, 12).
The ethical and political difficulties deepen when we get to the other kind of
geoengineering scheme reviewed in the NRC report, «albedo modification» — formerly known as
solar radiation management —
schemes to reduce the amount of sunlight reaching the Earth's surface.
Hence their attraction to
geoengineering schemes aimed at regulating
solar radiation or changing the chemical composition of the oceans.
Impatient with this kind of warning, some ultra-moderns are even now planning to impose their will on those forces by means of
geoengineering schemes aimed at regulating the amount of
solar energy reaching the planet.