Climber Alex Honnold is best known as the star of Free Solo, an Oscar-winning documentary that followed his rope-free ascent of the 3,000-foot (1,000-meter) face of Yosemite’s El Capitan. But he has also established the Honnold Foundation to bring solar power to those who most need it. This week on Zero, Bloomberg’s Akshat Rathi asks Honnold how he gets big things done and why helping communities get clean energy has become his other passion in life.

Explore further:

• Honnold Foundation website
• Alex Honnold's website
• Free Solo trailer

Zero is a production of Bloomberg Green. Our producer is Oscar Boyd. Special thanks to Sommer Saadi and Alyssa McDonald. Thoughts or suggestions? Email us at zeropod@bloomberg.net. For more coverage of climate change and solutions, visit https://www.bloomberg.com/green.