Global warming is here, now, and is already having catastrophic affects in the United States and the world as evidenced in Hurricanes Katrina and Rita. It's more than an environmental issue; it's about our national security, it's about our public health. It's an urgent matter of survival for everyone on the planet - the most urgent threat facing humanity today. That's why it's going to take more than policy debates and think tanks from governments. It's going to take action - by you, by all of us working together. This is the biggest problem we all face, and given what's at stake, joining the Virtual March really is the least you can do. Go to www.StopGlobalWarming.org This is the issue our generation will be judged by. When historians look back in a century or two, the most important thing about our time won't be the Internet or the booming stock market or any of the other things we concentrate so much attention on. Rather, it will be that these were the years that temperature began to spike sharply up--that the earth's climate, stable on a global level throughout our civilization, began very suddenly to shift. This issue is as morally urgent as the civil rights movement was to our parent's generation, and we must address it now.