Planet Visionaries

The climber who conquered the world’s toughest peaks — without extra oxygen Dec 03, 2024

From Everest to Annapurna, Ed Viesturs has summited the world’s highest mountains without supplemental oxygen. Now he joins Alex Honnold for a conversation about the meaning of climbing in the face of climate change.

Steve Boyes returns to tell how he’s finding hope on the rivers of Africa Nov 14, 2024

The Great Spine of Africa expeditions are an unprecedented survey of Africa’s rivers. Biologist Steve Boyes and his team are paddling 40,000 kilometers in dugout canoes to gather groundbreaking data on some of the world’s least-explored waterways.

What one explorer has learned in a lifetime on the poles Oct 31, 2024

The first woman to solo ski across Antarctica, Felicity Aston knows better than anyone how to survive on the ice. Now she tells Alex Honnold how her latest expedition unlocked new truths about climate change in the Arctic.

To save the Amazon, an explorer studies dolphins Oct 03, 2024

The Amazon is the world’s strongest barrier against climate change — and few of its creatures are more important than the beautiful pink river dolphin. 2024 Rolex National Geographic Explorer of the Year Fernando Trujillo joins Alex Honnold to discuss a lifetime protecting this vital mammal.

The secrets of a uniquely vibrant reef Sep 05, 2024

Marine biologist Ben Fitzpatrick has spent decades protecting the coastlines and coral reefs of Western Australia. Today he joins Alex Honnold to talk about his ongoing work to conserve one of the ocean’s most precious habitats.

Conservationists return with a message of hope Aug 22, 2024

Wildlife photographers Cristina Mittermeier and Paul Nicklen tell Alex Honnold how they’re using storytelling to inspire a new generation of conservationists.

To ease thirst, she pulls water from the air Aug 08, 2024

When her country was stricken by drought, Kenyan entrepreneur Beth Koigi developed a machine that uses condensation to produce water. She tells Alex Honnold how this technology can reduce water scarcity around the globe.

“Her Deepness” returns to discuss the future of the sea Jul 25, 2024

Since she last spoke to Alex Honnold in 2021, legendary explorer Sylvia Earle has made great progress in her efforts to protect 30% of the world’s oceans by 2030. Now she’s back to explain how Mission Blue’s Hope Spots provide safe haven for sea creatures worldwide.

To preserve the Andes, he’s planted millions of trees Jul 11, 2024

Biologist Constantino Aucca Chutas has spent two decades coordinating a continent-wide tree planting effort in South America. He joins Alex Honnold to explain how he’s preserving this magnificent landscape using one very special tree.

Using tradition to make clothing sustainably Jun 13, 2024

Fashion touches every person on Earth. Denica Riadini-Flesch, an Indonesian entrepreneur, tells Alex Honnold how she’s reimagining it as a force for good.

Season 4 Trailer May 30, 2024

Join host Alex Honnold for Season 4 of “Planet Visionaries.” Meet the explorers, scientists and adventurers who are tackling Earth’s biggest climate challenges in this podcast.

How protecting bats protects the planet (and us) Dec 14, 2023

Bats play a pivotal role in the well-being of people, ecosystems and the planet. Rodrigo Medellín, Mexico’s “bat man,” tells Alex Honnold how he’s saving several species from extinction.

A promising new discovery in the Amazon Nov 16, 2023

A never-before-documented ecosystem in the Amazon coastal area could present new solutions for climate resilience. Explorer Angelo Bernardino explains why.

Finding life under Arctic ice Oct 19, 2023

A deep dive into Arctic waters uncovered an uncharted underwater forest. Meet the explorers who found it and hear how this unusual ecosystem contributes to overall ocean health.

What ice might reveal about our climate future Sep 22, 2023

A daring expedition to extract a record-breaking ice core could help us prepare for future climate transitions. Hear from the scientist who led the project.

Why the Mediterranean needs more protection Aug 24, 2023

Alex Honnold meets two scientists using new technologies to protect the Mediterreanean’s marine life.

Live episode: Revolutionizing how we preserve the world underwater Aug 02, 2023

Ocean health is crucial to our planet. Listen to three young visionaries discuss their boundary-breaking conservation of marine ecosystems with Alex Honnold and hear a special appearance from legendary oceanographer Sylvia Earle.

A powerful new tool for protecting the ocean Jun 29, 2023

Climate influencers Cristina Mittermeier and Paul Nicklen on how social media is inspiring a new generation of ocean protection.

Bringing ecosystems back to life Jun 01, 2023

How Tompkins Conservation is rewilding millions of acres and restoring key species in South America.

A new key to climate resilience May 04, 2023

Meet the biologist canoeing 40,000km of Africa’s under-researched rivers to solve water and food security concerns for millions.

Season 3 Trailer May 04, 2023

Join host Alex Honnold for Season 3 of “Planet Visionaries.” Hear the stories of the explorers, adventurers and scientists solving Earth’s biggest climate challenges in this podcast.

Putting Indigenous expertise on the map Dec 07, 2022

Mapping Indigenous knowledge could help a nation adapt to climate change. Geographer and climate action advocate Hindou Oumarou Ibrahim explains how.

Engineering an end to ‘hidden hunger’ Nov 09, 2022

Malnutrition is a global problem with global consequences. Could this machine fix it?

The small town taking on climate change Oct 19, 2022

High in the Himalaya, a tiny community is testing a new conservation model that could have far-reaching effects.

What are ‘deep' reefs’? Sep 12, 2022

The ocean’s murky and difficult-to-reach “middle light” zone is teeming with undiscovered species. Meet the man on a mission to find them.

Exploring Earth’s underground secrets Aug 12, 2022

Two scientists are searching the world’s most remote caves for clues to our climate’s past — and future.

Diving to Chile’s hidden depths Jul 14, 2022

A daring diver discovers new life — and a unique ecosystem — in Patagonia’s remote fjords.

Meet Africa’s “Father of Turtles” Jun 24, 2022

Trailblazing conservationist Tomas Diagne on why protecting turtles protects the planet.

How one man is saving hundreds of species May 27, 2022

Meet Rohan Pethiyagoda, the pioneering naturalist reclaiming Sri Lanka’s mysterious cloud forests.

Two pioneers talk bold new solutions to wildlife conservation Apr 29, 2022

These legendary conservationists champion innovative new solutions for protecting threatened species.

Season 2 Trailer Apr 29, 2022

Join Alex Honnold for season 2 of Planet Visionaries, featuring more incredible individuals helping to solve global conservation issues.

The scientist turning plastics into possibility Jan 06, 2022

Scientist Miranda Wang is using innovative chemistry to upcycle discarded plastics.

Using sound technology to protect the rainforest Dec 30, 2021

Technologist Topher White is using audio in new ways to help find and stop deforestation.

A glaciologist's unexpected discovery Dec 02, 2021

Glaciologist Joseph Cook discovered an unusual contributor to sea level rise.

Peru's protector of the seas Oct 07, 2021

Inside conservation biologist Kerstin Forsberg’s community-based approach to saving the majestic manta ray.

The man who predicts eruptions Sep 02, 2021

Andrew McGonigle has leveraged digital technology in an effort to better forecast volcanic activity, learn about the planet and save lives.

The penguin protector Jul 29, 2021

Pablo García Borboroglu blends direct action, research, advocacy and education to safeguard penguins.

The ocean explorer turned environmentalist Jun 24, 2021

Meet Sylvia Earle, a legendary explorer, oceanographer and Rolex Testimonee, who has dedicated her life to protecting marine habitats.

Planet Visionaries Trailer Jun 15, 2021

A sneak peek at Planet Visionaries, the groundbreaking podcast that spotlights the people who are at the forefront of the quest to keep the planet perpetual.

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