A placard reading "Don't Burn Our Future" is seen during a protest against climate change in Canberra, Australia, March 15, 2019. Thousands of Australian students walked out of classrooms to demand action on climate change on Friday. Students flocked to rallies in about 50 locations across Australia, protesting against climate change for the second time since November 2018, according to the report of Australian Broadcasting Corporation (ABC). (Xinhua/Pan Xiangyue)