Initiatives to plant billions and even trillions of trees have been popping up like seedlings after a rainstorm. These are important in tackling climate change and biodiversity loss, but what about using natural regeneration, where one allows a forest to regrow using its native seedstock, in such efforts?   On this episode we discuss the amazing power of letting forests regrow, and when tree-planting is necessary, plus what we know about the differences between planted and naturally regenerated forests with two guests: University of California professor Karen Holl describes the conditions that are conducive to natural regeneration of forests and shares inspiring examples ranging from current experiments to historical events like in Costa Rica and the Northeast United States. And researcher/restoration consultant Robin Chazdon discusses the decision-making process that goes into successful reforestation projects, and whether today’s tree-planting campaigns are likely to be beneficial in the long run. Related resources: ”Is planting trees as good for the Earth as everyone says?” ”Beyond tree planting: When to let forests restore themselves” Please invite your friends to subscribe to the Mongabay Newscast wherever they get podcasts, or download our free app in the Apple App Store or in the Google Store to get access to our latest episodes at your fingertips. If you enjoy the Newscast, please visit www.patreon.com/mongabay to pledge a dollar or more to keep the show growing, Mongabay is a nonprofit media outlet and all support helps! See all our latest news from nature's frontline at Mongabay's homepage: news.mongabay.com or find us on Facebook, Twitter, and Instagram by searching for @mongabay. Please share your thoughts and ideas! submissions@mongabay.com.