NBC on Earth: Fighting climate change with ancient trees NBC Nightly News with Lester Holt

In the fight against climate change, the Milarch family says a solution is up. Way up. At the very top of centuries-old redwoods and sequoias. The family runs Archangel Ancient Tree Archive, where they collect samples from “champion” trees to clone and replant. Chief Environmental Correspondent Anne Thompson joins them in the treetops to learn more.