Solar power and batteries are becoming cheap and ubiquitous. Great. But there are problems batteries can’t solve – like fueling ships and planes. One way to solve those problems: Use solar power to create hydrogen, and turn that hydrogen into fuel.

Today’s guest is Raffi Garabedian, the co-founder and CEO of Electric Hydrogen. Raffi’s problem is this: How do you turn solar and wind energy into clean hydrogen that’s cheap enough to compete with fossil fuel?

This is the last of three episodes we’re doing about the solar-power revolution. Listen to the previous episodes on your podcast player or at our website: https://www.pushkin.fm/podcasts/whats-your-problem

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It's the season of giving: colorful paper and shiny bows, sure, and charitable giving, too. In this special episode, Jacob Goldstein, the host of What's Your Problem, gets smart about donating.

Did you know that spending money on others makes you happier than spending money on yourself? Or that altruistic nerds have discovered four of the most impactful charities in the world (per dollar spent)? Have you ever wondered how poker players think about giving?

Dr. Laurie Santos from The Happiness Lab, Elie Hassenfeld of GiveWell, and Nate Silver and Maria Konnikova from Risky Business talk about how to maximize your giving – and why you’ll be happy you did.

Link to donate: https://givingmultiplier.org/happinesslab

Listen to The Happiness Lab with Dr. Laurie Santos

Listen to Risky Business

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This is the second of three episodes about the solar-power revolution. Last week, we talked about how solar power got so cheap. This week, we’re talking with someone who is building giant plants around the world to take advantage of all that cheap, intermittent energy.

John O'Donnell is the co-founder of Rondo Energy. John’s problem is this: How do you turn intermittent energy into the cheap, reliable, intense heat that companies around the world need to make everything from steel beams to t-shirts?

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