Here are a few ABSOLUTE TRUTHS about global warming. The climate is changing. Things are getting warmer. Human activity contributes to global warming. Changes in human activity can fight global warming. If we don't change things, we're going to be facing disaster. It's a big problem. It is such a big problem that it can seem overwhelming. What can one individual do in the face of a global crisis? What can you do to make a difference? Well, you can either join the club of people who, as Mark Twain once noted, "Talk about the weather but do nothing to change it," or you can take action.