Unfortunately, we've allowed things to get so out of hand that drastic
measures are probably going to be required. There might still be time to
reverse things without such measures, but I just don't think the
political will is there to really try. So that leaves "geoengineering"
in another 20 or 30 years.

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

I agree. We barely have to political will to stop increasing CO2
output, nevermind starting to reduce it. And, natural forces may
already be starting to amplify the effect. For instance, the snowcover
is melting in the arctic, resulting in less sunlight being reflected
back into space.

However, they may be way lower-tech solutions. How about painting
roads, roofs, parking lots, etc white? How about growing more trees,
maybe diverting water from the Great Lakes to do it? Burying trash
instead of burning it?

Greg