Xploration Earth 2050 S03 E10 Trees Get Technical

Environmental bad guys beware! Trees are now safer thanks to new satellite imagery giving us a view of our planet like we've never had before. We now know how many trees are on Earth and-almost in real-time--- can tell who's cutting them down. And host Chuck Pell samples a new kind of tree---one that's built in a lab and designed to stop global warming.