As the UN Summit on Climate Change ramps up in Paris, we are thrilled to announce today the launch of our World Air Map, a live map of air pollution around the world.


The data revolution can help policymakers cut air pollution and communities take back control of their environment. We collect half a million open data environmental measurements from 11,000 stations every day to build predictive models using open data and data sciences that anticipate hourly changes in pollution levels in 200+ metropolitan areas around the world.

By leveraging cutting-edge data sciences and technologies such as artificial intelligence and machine learning, we can now estimate hourly air pollution levels everywhere in the world – including in areas that aren’t monitored stations. These models also anticipate long-distance transport of air pollutants, helping strengthen forecasting accuracy in urban areas.

The World Air Map puts this advanced technology at your fingertips and makes it immediately accessible, helping democratize access to environmental information. It makes the invisible phenomenon of air pollution visible – especially in countries that do not operate monitoring networks. By making the air more transparent, we hope it will also support climate activism and help visualize the harmful emissions world leaders aim at curtailing through the COP21 negotiations.

We introduced the World Air Map at a COP21 side-event on ‘Data Against Climate Change’ we were organizing today. To showcase how the data revolution could help improve our environment, speakers from all backgrounds – the UN, the French Prime Minister’s office, Paris City Hall, NGOs, startups – gathered to present data-driven solutions for transparency, civic entrepreneurship and mobilization against pollution and climate change. We’ll tell you more about this event very soon.



The World Air Map is available online at