New York City was a hub for climate action between September 21st and 23rd 2014.
An estimated 400,000 people participated in the People's Climate March in New York City on September 21st. Two days later, on September 23rd, the UN Secretary-General's Climate Summit took place at United Nations Headquarters. The map below shows geo-located tweets over the course of three days, showing the volume and intensity of chatter about climate change across New York City. Watch how the density of tweets follows the route of the People's Climate March on the 21st and concentrates at the UN on the 23rd.