Wall of Wonderings

Here is the Wall of Wonderings for April 24-30:
According to this article, two-thirds of the world's resources have been used up. In the past fifteen years, 40% of the polar ice caps have melted and in the next fifteen that number will rise to 60%. Already Americans use far beyond their fair share of the world's natural resources. What will remain in the next century?

What sorts of practices do you use to leave less of an impact on the world? If you had the opportunity to set up one program or event that might reduce our dependance on natural resources, would you do it? What would that one program or event be?