Colby Buzzell was diagnosed with PTSD after returning home. Courtesy Colby Buzzell hide caption

Lonnie Thompson, a professor of earth sciences at Ohio State University, led a team of scientists drilling for ice cores atop the Puncak Jaya glacier in Papua, Indonesia. Here, their base camp sits below a massif bearing one of the upper ice fields. Courtesy of Paolo Gabrielli/Ohio State University hide caption

Villagers from Guangmenyan move roof beams and bamboo poles to take with them to their new homes. As part of the largest engineering project in China's history, 353 villagers are leaving their homes forever. The $62 billion water diversion project will channel water from the south of the country to the drought-prone North. Lei Yang/NPR hide caption

The Books. Nino P. hide caption