1. 9 Tumblrs Every Environmentalist Should Follow →

    treehugger:

    Yay! Mashable named us as one of 9 Tumblrs to follow! We’d like to thank all of our Tumblr friends for making this possible! We truly couldn’t have done it without you! 

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    But that’s not all! The Tumblr for our sister site, Mother Nature Network, was also named to the list! Double yay! 

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    Thank you so much!