Hollywood actor and activist Leonardo DiCaprio continues to support environmental causes by contributing items to a charity auction with all proceeds going to Global Green USA.

The book Antarctica: The Global Warning by Sebastian Copeland, has been signed by both Mikhail Gorbachev (who wrote the forward), and Leonardo DiCaprio (who contributed the book’s introduction).

This amazing hardcover coffee table book is filled with pictures showing the vast changes in climate as noted by researchers for over the past 50 years.

signed dicaprio gorbachev, num, 267, “”

DiCaprio was recently presented with the International Green Film Award presented by BMW by Mikhail Gorbachev. The award offers a platform for environmental activists to raise public awareness for environmental issues and comes with a $250,000 donation for an environmental foundation or film project.