In 2022, parachutist Luigi Cani dropped 100 million seeds over the Amazon rainforest while skydiving. He did it to raise awareness about deforestation and help regrow the forest. But there has been little scientific follow up to see whether it worked. So, today, we talk to restoration ecologist Pedro Brancalion about the surprising complexity involved in regrowing a forest, and when dropping seeds from the sky – by people or by drones – could work.

If you liked this episode, check out our others on building microforests in cities and scientists’ creative idea to save a keystone tree species that grows very slowly.

Interested in more tree science? Email us your question at shortwave@npr.org.

Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.

See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences.

NPR Privacy Policy

What's at stake if we can't regrow our forests

Short Wave

What's at stake if we can't regrow our forests