More than 25 years after Bill Gates’ first book, The Road Ahead, foretold the impact of personal computers and digital technology on our lives, the Microsoft co-founder is back with his third book, this time with a warning and a call to action for the world. 

In “How to Avoid a Climate Disaster," due out Tuesday, Gates presents an ambitious but achievable plan for saving the planet, including scientific and technological breakthroughs, and unprecedented efforts on a global scale. 

On this special episode of the GeekWire Podcast, Gates speaks with GeekWire reporter Lisa Stiffler about the book, his reasons for focusing on the climate, and even the potential for collaborating with Amazon founder Jeff Bezos on the issue.