I’ve been hearing great stories from my friends and colleagues this week, especially the younger ones, about how much they enjoyed and were motivated by the Live Earth Concerts on Saturday.

What has remained in my thoughts is how over two billion people around the world awakened to the climate crisis.

Evidence of global warming abounds. We have seen dramatic increases in polar ice caps melting, record heatwaves in the American West this summer, and 2007 is now predicted to become the second-hottest year on record.

Saturday was a first step for many in this incredible journey we are on to confront global warming together. It’s time to keep the momentum going and demand that our political leaders take action now to avert the worst consequences of global warming. This is not about right or left, it’s about right and wrong. Global warming will affect each of us. And working together, we can make a difference.

What will you do today? You can start by taking the Live Earth pledge at http://liveearth.org/.