Climate activist Greta Thunberg, centre, leaves the protest in Madrid. Thunberg arrived in Madrid to join thousands of other young people in a march to demand world leaders take re...
Climate activist Greta Thunberg holds a sign reading 'School strike for the climate' after arriving in Lisbon, aboard the sailboat La Vagabonde. Thunberg has arrived by catamaran i...
Swedish teen climate activist Greta Thunberg waves from the 48-foot (15-meter) catamaran La Vagabonde as it departs Salt Ponds in Hampton, Va.. Thunberg left North America on a re...
Swedish climate activist Greta Thunberg, 16, speaks at Standing Rock High School in Fort Yates, North Dakota. Thunberg's visit was part of a panel discussion on American Indian opp...
Greta Thunberg looks on during the Climate Change Rally and March in Rapid City, South Dakota.
Swedish climate activist Greta Thunberg, left, receives the key to the city from Montreal mayor Valerie Plante during a ceremony in Montreal.
Environmental activist Greta Thunberg, of Sweden, addresses the Climate Action Summit in the United Nations General Assembly, at U.N. headquarters
Swedish teenage climate activist Greta Thunberg speaks as she takes part during the Climate Strike in New York.
Swedish teenage climate activist Greta Thunberg, center, speaks as she takes part during the Climate Strike, in New York.
Swedish environmental activist Greta Thunberg, center, takes part during the Climate Strike in New York. Rallies calling for action on climate change are happening in cities around...
