rationalskepticism.org

Lifeboat for the rational mind :D
http://www.rationalskepticism.org/

Living Walls

http://www.rationalskepticism.org/viewtopic.php?p=2416783#p2416783

Posted: May 15, 2016 10:36 pm

by Rachel Bronwyn

The California Academy of Sciences in San Francisco has a living roof - very cool.

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