http://cleantechnica.com/2011/04/15/u-s-postal-service-sends-a-love-letter-to-green-philatelists/ Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More. Tue, 30 Dec 2014 14:09:00 +0000 hourly 1 http://wordpress.org/?v=4.0.1 http://cleantechnica.com/2011/04/15/u-s-postal-service-sends-a-love-letter-to-green-philatelists/#comment-96353 Sun, 17 Apr 2011 18:51:00 +0000 http://cleantechnica.com/?p=25823#comment-96353 I mean, I guess thats cool that the USPS is trying to raise some awareness, but I would rather see them do something more substantial, like reduce their carbon emmissions by delivering less junk mail or something.

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