jts Posted April 24, 2013 Share Posted April 24, 2013 Green on the outside; red on the inside. Link to comment Share on other sites More sharing options...
Brant Gaede Posted April 24, 2013 Share Posted April 24, 2013 This idea is at least two decades old.--Brant Link to comment Share on other sites More sharing options...
dennislmay Posted April 24, 2013 Share Posted April 24, 2013 This idea is at least two decades old.--BrantI had a philosophy/physics course in 1982-1983 where it was discussed.Dennis Link to comment Share on other sites More sharing options...
jts Posted April 24, 2013 Author Share Posted April 24, 2013 It's not always called environmentalism. Link to comment Share on other sites More sharing options...
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