Wise Young
11-18-2006, 07:46 AM
http://uanews.org/cgi-bin/WebObjects/UANews.woa/1/wa/MainStoryDetails?ArticleID=13269
Space Sunshade Might Be Feasible in Global Warming Emergency
By Lori Stiles
November 03, 2006
N O T A E
Contact Information
Roger Angel
20-621-6541
rangel@as.arizona.edu
Related Web site
http://www.pnas.org/
Downloadable solarshade graphic:
http://uanews.org/silk/request/solarshield.jpg
Email this to a friend
The possibility that global warming will trigger abrupt climate change is something people might not want to think about.
But University of Arizona astronomer Roger Angel thinks about it.
Angel, a University of Arizona Regents' Professor and one of the world's foremost minds in modern optics, directs the Steward Observatory Mirror Laboratory and the Center for Astronomical Adaptive Optics. He has won top honors for his many extraordinary conceptual ideas that have become practical engineering solutions for astronomy.
For the past year, Angel has been looking at ways to cool the Earth in an emergency. He's been studying the practicality of deploying a space sunshade in a global warming crisis, a crisis where it becomes clear that Earth is unmistakably headed for disastrous climate change within a decade or two.
Roger Angel
Angel presented the idea at the National Academy of Sciences in April and won a NASA Institute for Advanced Concepts grant for further research in July. His collaborators on the grant are David Miller of the Massachusetts Institute of Technology, Nick Woolf of UA's Steward Observatory, and NASA Ames Research Center Director S. Pete Worden.
Angel is now publishing a first detailed, scholarly paper, "Feasibility of cooling the Earth with a cloud of small spacecraft near L1," in the Proceedings of the National Academy of Sciences. The plan would be to launch a constellation of trillions of small free-flying spacecraft a million miles above Earth into an orbit aligned with the sun, called the L-1 orbit.
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Space Sunshade Might Be Feasible in Global Warming Emergency
By Lori Stiles
November 03, 2006
N O T A E
Contact Information
Roger Angel
20-621-6541
rangel@as.arizona.edu
Related Web site
http://www.pnas.org/
Downloadable solarshade graphic:
http://uanews.org/silk/request/solarshield.jpg
Email this to a friend
The possibility that global warming will trigger abrupt climate change is something people might not want to think about.
But University of Arizona astronomer Roger Angel thinks about it.
Angel, a University of Arizona Regents' Professor and one of the world's foremost minds in modern optics, directs the Steward Observatory Mirror Laboratory and the Center for Astronomical Adaptive Optics. He has won top honors for his many extraordinary conceptual ideas that have become practical engineering solutions for astronomy.
For the past year, Angel has been looking at ways to cool the Earth in an emergency. He's been studying the practicality of deploying a space sunshade in a global warming crisis, a crisis where it becomes clear that Earth is unmistakably headed for disastrous climate change within a decade or two.
Roger Angel
Angel presented the idea at the National Academy of Sciences in April and won a NASA Institute for Advanced Concepts grant for further research in July. His collaborators on the grant are David Miller of the Massachusetts Institute of Technology, Nick Woolf of UA's Steward Observatory, and NASA Ames Research Center Director S. Pete Worden.
Angel is now publishing a first detailed, scholarly paper, "Feasibility of cooling the Earth with a cloud of small spacecraft near L1," in the Proceedings of the National Academy of Sciences. The plan would be to launch a constellation of trillions of small free-flying spacecraft a million miles above Earth into an orbit aligned with the sun, called the L-1 orbit.
<more>