I've often wondered how much using paper bags instead of plastic bags, increasing gas mileage by x percent, and many other individual initiatives would improve the environment. I will take these baby steps myself in many cases, but we also need a new "defense" initiative to reduce the old style energy generation and create new means of generating energy. To do so would take a massive government effort that too few politicians are considering.
The October "Wired" has an article about two environmentalists who have proposed such a project. Two Environmentalists Anger Their Brethren by Mark Horowitz. They contend that the current environmentalism is not going to produce the needed results. Micheal Shellenberger and Ted Nordhaus propose a New Apollo Project.