Much — but not all — of this research has raised ethical concerns
about some geoengineering techniques, particularly those belonging to the category of solar radiation management.
It revealed what Mercer described as a surprisingly high level of public awareness
about geoengineering techniques.
Not exact matches
Americans, however, appeared more wary of such strategies than Canadians or Brits: Forty - one percent of U.S. respondees opposed ever adopting
geoengineering techniques, compared to just
about 30 % of Canadian and U.K. residents.
Another plea in your pages for
geoengineering (12 September, p 34) makes me wonder if I am alone in my concern
about the potential for warlike abuse of these
techniques.
a) Someone who is seriously concerned
about climate might well argue that that we need to research
geoengineering techniques, especially when we can do it cheap, just in case.
But triggering an algae bloom is also a way to suck carbon dioxide out of the atmosphere, and along with spewing particles into the stratosphere to block some of the sun's heat, it's one of the main
techniques geoengineers talk
about using if efforts to limit those emissions ultimately fail.
This prevention of going over 3C would include a combination of GHG reductions brought
about by energy policy and possibly some
geoengineering techniques (maybe even artificial photosynthesis which uses up CO2 and produces useful energy)..