TOPSHOT - A climate activist protests in Trafalgar Square during the third day of climate change demonstrations by the Extinction Rebellion group, in central London on October 9, 2019. - Demonstrations occurred in 60 cities around the world this week, with thousands taking to the streets of New Delhi, Cape Town, Paris, Vienna, Madrid, and Buenos Aires. Extinction Rebellion is demanding that governments drastically cut carbon emissions. (Photo by Niklas HALLE'N / AFP)