Australian plant ecologist Brenton Ladd wants to reengineer the notoriously nutrient-poor soils in the Amazon, and, in the process, save the world's trees. But first, he has to convince Peruvian farmers and non-profits—and occasionally, his own research team—that he's not just another gringo with a strange idea.
Touching asbestos doesn't scare Pierrette Théroux, founder of the Asbestos Historical Society. As a child, she woke to dustings of asbestos, fallen overnight like snow.
As scientists sort out the best way to capture and measure the harmful microfibers that now litter most of the world's freshwater, we have no choice but to keep drinking.
Kanchanaburi, Thailand: Two tigers cool off at Wat Pha Luang Ta Bua Yannasampanno, a Buddhist temple that once doubled as a wildlife refuge. Thai authorities later removed the tigers after allegations of wildlife trafficking.
Lashkar Gah, Afghanistan: In 2015, after Taliban skirmishes in the town of Sangin, Kharim Ahmad, an Afghan civilian, receives treatment from shrapnel wounds and other injuries at an emergency hospital.