Emily Bogle

Mongolia is changing. Rivers are dry. Pastureland is giving way to mines. And wintertime smog obscures the famed blue sky. How did Mongolia get here? It's a story of internal migration and economic transformation in an era of climate change.

Explore the visual narrative at https://apps.npr.org/mongolia/

Members of the NPR Visuals team used their skills in photography, illustration, data visualizations and video to tell stories that reflect the world around us. The year was filled with political news as we tracked the 2018 midterm elections. We continued our coverage of Puerto Rico's recovery efforts after Hurricane Maria significantly damaged the island in 2017. Photographers documented South American migrants who traveled in caravans in hopes of reaching the U.S.

John and Grace Slaby met 19 years ago on an animal preserve much like the one they own and operate now. The 5-acre Kowiachobee Animal Preserve in Naples, Fla., holds more than 100 animals — from a 6-year-old African lion named Shaumbay to a raccoon named Dexter.

Last month, Kowiachobee was hit by the eye of Hurricane Irma, a Category 3 storm. After an already wet season, the hurricane created more flooding on the property. Grace and John, along with many volunteers, are now repairing cages damaged by the storm.

This is the conclusion of our three-part series. Read Part 1 here and Part 2 here.

May 7: Race Day