Clint Williams at the Mother Nature Network has done a bit of work to help us figure out how to get the most bang for your green charity buck! 8 Well Rated Green Charities (http://www.mnn.com/money/personal-finance/stories/8-well-rated-green-charities-to-kick-start-your-holiday-giving)
The Greener Me has quite a few postings on Squidoo and one of them is about Green Charities. Ten Green Charity Organizations (http://www.squidoo.com/green-charities)
So, if you can give this season, please consider one of the Green Charities listed at either of the links above.
Thanks,
-Joe