Jeremy and Hanne Grantham are two of my favorite people in the world. They are ardent and well-informed climate hawks, doing everything they can to not only sound the warning about climate change, but to help stop it. Theirs is a delightful dinner table, because they keep everyone engaged in the conversation, and keep talk from sliding into the trivial and banal. Hanne and Jeremy are also among our Moms Clean Air Force godparents, early advisors whose message is always: push harder! run faster! be louder!

I have learned a great deal from both of them about what’s happening to our planet–and what we can do to stop it. I’ve also learned something even more important: never to give up, never to fall silent, never to be cowed, never to feel hopeless–always to keep trying. This piece by Jeremy is a must-read. He comes at things from an investor’s perspective–totally unlike mine, but he is able to make what might be arcane completely accessible. I urge all of you to read this article from Nature, and to pass it along to everyone you know.

We must deny the deniers their power to blind and confuse us. We must urge our leaders, both Republican and Democrat, to come up with a plan of action that stops carbon and methane pollution, that strengthens our economy, and that puts our ingenuity and brains to use. America must remain at the cutting edge of the vibrant, clean and sustainable energy technologies of the future. That’s good for all of us, and most of all, for our children. And theirs.

TELL PRESIDENT OBAMA WE NEED A PLAN TO FIGHT CLIMATE CHANGE