Here is neat set of ways to act on your beliefs about the environment and politics, : http://grist.org/guides/umbra-apathy-detox/. It includes things like: making a plan, finding friends to protest with, moving your money from bad banks, cutting back on online time, focusing on one issue, donating money, creating a calendar of actions, subscribe to local newspapers, learn how to protest, ..... There are great links to sites with information about how to do these things.