 Look at that dot. That's here. That's home. That's us. On it, everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. Those words from a pale blue dot reflect on the fragility of Earth and our responsibility to preserve the only home you and I have ever known. But our blue planet is also covered in rich shades of green. During my time in space, I had the privilege to look down and see the immense forests covering our world, to see mangrove covered islands speckling our oceans, to watch entire forests change color during autumn over my hometown in Maine. But right now, our home is under immense and immediate threat from climate change. And the ecosystems of Mother Earth's forests are being dramatically impacted. From the space station, I could also see vast plumes of smoke from enormous wildfires made worse by climate change. Huge tracts of deforested land cutting through pristine forests and deserts expanding into areas that should have been green. But it's not too late to stop this. I encourage everyone to get involved in conserving, restoring and growing our world's forests. It can be as simple as planting a tree in your neighborhood. Our home needs your help. And now is the time for action.