Bill McKibben Introduces Climate Sign at Eiffel Tower Lighting Ceremony

Last night, Bill McKibben, founder of, introduced the Climate Sign at the Lighting Ceremony in Paris stating, “C for Climate, C for Change, and C for the huge community of people around the world who are working for change right now!” This week Mayor Hidalgo approved the climate hand sign for illumination on the Eiffel Tower from December 5-12th during the UN Climate Summit now underway in Paris.