Dear All,
On Friday I attended an event by Making Sunsets in San Francisco. This
slide show illustrates my experience,
http://climate.envsci.rutgers.edu/robock/talks/MakeSunsets.pptx While
there, Luke Iseman told me that they launched three balloons in Berkeley
the day before and that they retrieved all of them using GPS tracking.
I just found out that this launch was part of a CBS Saturday Morning
presentation on SRM, https://youtu.be/XmVsat8-Dso
A 1992 US government report on this (Committee on Science Engineering
and Public Policy, 1992: Geoengineering options, Appendix Q, in /Policy
Implications of Greenhouse Warming: Mitigation, Adaptation, and the
Science Base/, pp. 433 – 464, Natl. Acad. Press, Washington, D. C.),
examining options for getting material to the stratosphere, said that if
balloons were used, ‘‘The fall of collapsed balloons might be an
annoying form of trash rain.’’ The film of the balloon popping in the
CBS show showed that scraps of the balloon went flying, so that they did
not retrieve all the parts of the balloon. He also told me that the
latex balloons they launched in SF were biodegradable, but I don't think
they degrade fast enough to make them safe.
Alan
Alan Robock, Distinguished Professor
Editor, Reviews of Geophysics
Chair, AGU College of Fellows
Department of Environmental Sciences Phone: +1-848-932-5751
Rutgers University E-mail:[email protected]
14 College Farm Roadhttp://people.envsci.rutgers.edu/robock
New Brunswick, NJ 08901-8551 ☮https://twitter.com/AlanRobock
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