In Laos, at least 26 people have been killed, and thousands more are in need of rescue, after a billion-dollar hydroelectric dam collapsed, flooding nearby villages and farmland. The anti-dam group International Rivers said the dam overflowed as a result of heavy monsoon rains, and that climate change is exacerbating the risks to people who live downstream of dams. The collapsed dam is one of dozens of hydroelectric projects that have been proposed or are currently under construction in Laos.