Last year, we reported how extreme weather events may be dwindling the future of chocolate. Just last week, we saw an inkling of that: The Hershey Company announced it would significantly raise the cost of its candy in the face of historically high cocoa prices. So, we're revisiting host Emily Kwong's conversation with Yasmin Tayag, a food, health and science writer at The Atlantic. They get into the cocoa shortage: What's causing it, how it's linked to weather and poor farming conditions and what potential solutions exist. Plus, they enjoy a chocolate alternative taste test.

Much of the country is deep in the middle of a heat wave right now. And every summer, Duane Stilwell's town in Arizona seems to get hotter. It has him worried — and he's not the only one. Since 1980, the average number of heat waves in the U.S has doubled and the average length of a heat wave season has increased from 40 days to 70. Future summers, experts say, will be even hotter. But why exactly is that happening, and what can people do to protect themselves from the heat?

This episode is part of Nature Quest, a monthly segment that answers listeners' questions about their local environment. If you have a question, send a voice memo to shortwave@npr.org that includes it, your name and where you live. We might make it into our next Nature Quest episode!

Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.

(Image credit: Artur Debat)

Gen Z and younger millennials are the most climate literate generations the world has ever seen. They learned about climate change in school; now, it's part of how they plan for the future, including for jobs, housing ... and kids.

So, what do experts say about how to navigate the kid question? In this installment of Nature Quest, Short Wave speaks to climate journalist Alessandra Ram about the future she sees for her newborn daughter. Plus, how do we raise the next generation in a way that's good for the planet?

Resources discussed in this episode include:
Jade Sasser's book, Climate Anxiety and the Kid Question
Kimberly Nicholas's High Impact Climate Action Guide
Elizabeth Bechard's book, Parenting in a Changing Climate
The Climate Mental Health Network's Climate Emotions Wheel

Got a question about changes in your local environment? Send a voice memo to shortwave@npr.org with your name, where you live and your question. You might make it into our next Nature Quest episode!

(Image credit: Eriko Koga)

Google, Microsoft and Meta have all pledged to reach at least net-zero carbon emissions by 2030. Amazon set their net-zero deadline for 2040. To understand how these four tech companies could possibly meet their climate goals amid an artificial intelligence renaissance, Short Wave co-host Emily Kwong discusses the green AI movement. Speaking with scientists, CEOs and tech insiders, she explores three possible pathways: nuclear energy, small language models (SLMs) and back-to-the-future ways of keeping data centers cool.

Listen to Part 1 of Short Wave's reporting on the environmental cost of AI here.

Have a question about AI and the environment? Email us at shortwave@npr.org — we'd love to hear from you!

Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.

(Image credit: Hiroshi Watanabe)

By 2028, Lawrence Berkeley National Laboratory forecasts that U.S. data centers could use as much as 12% of the nation's electricity. The reason: generative AI. Since 2022, AI innovation by four leading tech companies — Google, Microsoft, Meta and Amazon — has led to annual increases in both energy and water consumption. So, in this episode, Short Wave co-host Emily Kwong probes huge water footprint of AI. We begin with the rise of data centers, then look at how computers came to need so much water and, finally, what tech companies are doing to try to turn the ship around.

P.S. Part 2 talks about the leading solutions in the green AI movement. So don't miss our Friday episode!

Curious about tech and the environment? Email us at shortwave@npr.org — we'd love to hear from you!

Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave

(Image credit: Deven Dadbhawala)