Find the latest episode of "The Uncertain Hour" here. Listen

Musk’s $100 million prize a complement to needed government climate action

Feb 12, 2021
The tech titan is running an innovation contest for carbon-removal technology. But it can only be a small part of the solution.
Elon Musk, the chief of Tesla and SpaceX, is sponsoring a contest with a big financial payoff, aimed at developing carbon-removal technology.
Maja Hitij/Getty Images

Scientists race toward $7.5 million prize to reduce carbon

Apr 12, 2018
The XPRIZE started with 38 teams and is now down to a final 10.
Members of Carbon Upcycling UCLA convert and harden building materials by treating them with carbon dioxide.
Courtesy of UCLA Samueli School of Engineering

How to get to space without NASA

Sep 22, 2016
Julian Guthrie's new book, "How to Make a Spaceship" details the founding of the XPRIZE.
Joel Kowsky/NASA via Getty Images