Teen climate activist Greta Thunberg tells Congress: 'Unite behind the science' - NBC News

Teen climate activist Greta Thunberg tells Congress: 'Unite behind the science'  NBC NewsGreta Thunberg, 16, was invited to speak Wednesday by members of Congress on the topic of climate change.

Teen climate activist Greta Thunberg tells Congress: 'Unite behind the science' - NBC News
Teen climate activist Greta Thunberg tells Congress: 'Unite behind the science'  NBC News

Greta Thunberg, 16, was invited to speak Wednesday by members of Congress on the topic of climate change.