By 8 a.m., the sun hasn't pierced through dark clouds hanging over India's Brahmaputra River, but it's already warm and humid. People wait for a boat to take them to the Chandanpur char, an island in India's northeastern state of Assam, an hourlong ride from the mainland.
A char is a river island formed by silt carried downriver. Chars rise up and are submerged every few years. Every time a char erodes, the people living there dismantle their homes and move to the next-closest char by boat. They can't afford to move to the mainland.