'I want you to take action': Greta Thunberg, teenage climate activist, testifies before Congress USA TODAY'We're a team': Greta Thunberg visits Barack Obama Guardian NewsGreta Thunberg used her superpower of climate-shaming adults on Senate Democrats Vox.comCA teen wants oil production cut to fight climate change Sacramento BeeWhy you should join the global climate strike this Friday The GuardianView full coverage on Google News