In northern latitudes and high altitudes, permafrost stays frozen year-round, holding mountain summits together. As global temperatures rise, much of it thaws, loosening soil and increasing landslide risk. National Geographic Explorer Paul Salopek is in Alaska, observing a man developing an early warning system for landslides to help communities prepare.

US President Donald Trump recently announced that he would be boosting imports of Argentine beef to the United States. The move set off a firestorm of pushback from Americans in the industry, but a recent analysis shows the impact on the domestic market is likely to be minimal.

For decades, Washington has pressured Havana to open its economy to private investment. Those calls grew more urgent in recent weeks as the US oil blockade pushed Cuba’s economy into a tailspin. Now, the Trump administration has begun easing certain trade restrictions, while officials on the island are making overtures to the nascent private sector. Ricardo Herrero of the Cuba Study Group discusses the implications with The World’s Host Carolyn Beeler.

Mexico’s Islas Marías was once a notorious island prison that housed criminals and political prisoners. Recently, it was closed down and transformed into a tourist destination, preserving a dark part of history.

Global adoptions to the US have become complex over the decades. As an adoptee herself, Maria Noble Valdez delves into the nuances of the adoption process for The World.