A mechanical engineer teams up with an unlikely band of students who use middle school math and science to create artificial glaciers that irrigate Ladakh, a region in India hit hard by climate change. For more information on this episode, visit nationalgeographic.com/podcasts/overheard.

Want More?

Read Arati's story about Sonam Wangchuk and his artificial glaciers in this month's issue of the magazine.

It's not just Ladakh that's facing a water crisis. Learn more about India's struggles with water infrastructure, with more reporting by Arati Kumar-Rao.

You can read about the complicated history of Kashmir, an area that's witnessed two wars and a longstanding insurgency.

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Check out photos of Sonam's solar-powered school built from mud.

You can also make your own pledge to live simply by visiting the I Live Simply movement's website.

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