Nukes

They may be our worst creations. But Latif uncovers how nuclear bombs did some surprising good and visits those who ensure that they stop blowing up.

Nukes

They may be our worst creations. But Latif uncovers how nuclear bombs did some surprising good and visits those who ensure that they stop blowing up.

Clouds

A 19th-century shipwreck led to weather forecasting as we know it, and laid the groundwork for other predictive models as well as … well, the cloud.

Digits

Latif explores a law of numerical probability that applies to classical music, contemporary social media, tax fraud and perhaps the entire universe.

Dust

A speck of dust seems insignificant, but a swarm of it can do everything from generating oxygen to tempering hurricanes to fertilizing the rainforest.

Iquitos

Zac boosts his immune system in the Amazon rainforest before climbing a tree, exploring ayahuasca tourism and watching his dinner wriggle on a plate.

London

After a beekeeping stop on a New York City rooftop, Zac checks out London's pollution-reduction efforts, from wall gardening to trash collecting.

Puerto Rico

In the devastating wake of Hurricane Maria, Zac explores sustainability in the region, where he meets chef José Andrés, milks a goat and eats ceviche.

Lima

Following a crash course in apple growing, Zac and Darin head to Peru to delve into potato cryopreservation, biopiracy and the sport of sandboarding.