Thursday, 17 October 2019

Former U.S. President Barack Obama talks with Greta Thunberg during a meeting at his personal office in Washington, D.C., U.S., September 16, 2019. Thunberg has been in Washington since last week to join U.S. and indigenous activists to build up support for a global climate strike on Friday (September 20) and pressure lawmakers to take action on climate change. Obama Foundation/Handout via REUTERS

Former U.S. President Barack Obama talks with Greta Thunberg during a meeting at his personal office in Washington, D.C., U.S., September 16, 2019. She attracted international attention last year when she started missing school on Fridays to protest against political inaction on climate change. Obama Foundation/Handout via REUTERS

Former U.S. President Barack Obama talks with Greta Thunberg during a meeting at his personal office in Washington, D.C., U.S., September 16, 2019. "Greta's a teenager from Sweden, but at just 16 years old, she embodies why Michelle and I started the Obama Foundation in the first place". Obama wrote in the article about his meeting with the young leader. He expressed his gratitude for Greta's example for the upcoming generations. Obama Foundation/Handout via REUTERS

Greta Thunberg and former U.S. President Barack Obama fist bump during a meeting at Obama's personal office in Washington, D.C., U.S., September 16, 2019 in this screen grab obtained from a social media video. Obama Foundation/via REUTERS

Former U.S. President Barack Obama fist bumps Greta Thunberg during a meeting at his personal office in Washington, D.C., U.S., September 16, 2019. Obama Foundation/Handout via REUTERS

Former U.S. President Barack Obama shakes hands with Greta Thunberg during a meeting at his personal office in Washington, D.C., U.S., September 16, 2019. Obama Foundation/Handout via REUTERS