http://www.dailykos.com/story/2012/12/02/1165557/-The-Next-Industrial-Revolution-Is-Ecological
Ecological Revolution in Grafton, MA.2012

From George Mokray's Kos newletter:
http://www.dailykos.com/story/2012/06/06/1097724/-Ecological-Design-for-Geoengineering

According to a recent New Yorker article on the subject:
"Geoengineering" actually refers to two distinct ideas about how to cool the planet. The first, solar-radiation management, focusses on reducing the impact of the sun. Whether by seeding clouds, spreading giant mirrors in the desert, or injecting sulfates into the stratosphere, most such plans seek to replicate the effects of eruptions like Mt. Pinatubo’s. The other approach is less risky, and involves removing carbon directly from the atmosphere and burying it in vast ocean storage beds or deep inside the earth. Read more http://www.newyorker.com/...

However, I believe there are a number of ecological design solutions that can be used to slow or reverse climate change. Unfortunately, they are not "heroic" engineering projects that will also change the color of the sky. Slow and steady biome restoration, household by household installation of efficient cookstoves, changes in diet and agriculture just don't have the panache of space umbrellas or pipelines to the clouds.

One organization which has consistently promoted ecological and systems design in response to climate change and other problems is the Buckminster Fuller Challenge and tomorrow in NYC they will announce their 2012 award winner
http://cooper.edu/...

Previous winners include John Todd's work on ecological remediation for the coal ravaged lands of Appalachia:
http://www.dailykos.com/...