What can I do?

Make it a goal to use more public transportion or ride a bike or walk
Make it a goal to buy more local products and organic local food
Make it a goal to plant trees in your surrounding area
Make it a goal to buy energy efficient bulps and electric devices
When you are building a house think about good insulation to keep your home energy efficient
Keep an open mind, speak up, inform the people around you, be involved in the decisions of your community, and put preassure on your local politicans in order to participate in democracy