Leonardo Dicaprio showed his passion for the environment recently when he posted a question on the Yahoo! Answers website, looking for input on how everyone make small changes in their lives to benefit the cause. "We can all be environmentalists," the Blood Diamond actor said in a statement. "Creating communities online that are interested in discussing and embracing smart, simple and serious solutions reminds us we can all take action in our own homes and where we work. The United States can set an example for the rest of the world by protecting our cities and protecting ourselves." Dicaprio was invited to post the online question by Global Green USA. "It's meant to provoke thought about what people can do in their own lives and what leaders can do to take us in a different course," said Global Green's president. For more info, check out Yahoo! Answers and Global Green USA.