Meet Greta Thunberg (@gretathunberg). She?s a 16-year-old advocate for climate change activism and founder of the School Strike for Climate movement. ?When I was younger, I decided to start striking every Friday until Sweden was in line with the Paris Agreement,? says Greta, who was nominated this year for a Nobel Peace Prize. ?If we all do something, we can accomplish anything.? Today on our story and our IGTV, learn more about Greta in our new weekly series #Advocates, highlighting people around the world who are sparking positive change. ?