Swedish climate activist Greta Thunberg was briefly detained Tuesday by police at a protest over the controversial expansion of a western Germany coal mine that has become a flashpoint for that country's climate debate.
Protests at Lützerath, a tiny village slated to be cleared and demolished to make way for the nearby Garzweiler coal mine, have grown massive and contentious over the past week. At least 15,000 people demonstrated on Saturday.
