Activists protest on Whitehall, near the entrance to Downing Street, during the third day of demonstrations by the Extinction Rebellion climate change 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 ISABEL INFANTES / AFP)