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Earth Challenge 2020

In recognition of the 50th anniversary of Earth Day, the Earth Day Network, the U.S. Department of State, and The Wilson Center are launching Earth Challenge 2020 (EC2020) as the world’s biggest ever coordinated citizen science campaign.

EC2020 is leveraging Citizen Science and emerging technologies to engage one million global citizens in collecting one billion data points to measure air quality, water quality, pollution and human health. This initiative is being developed in association with dozens of major partners of whom the Association of Science and Technology Centers (ASTC).

How to get involved?

The timeline for Earth Challenge 2020 spans eighteen months. Check out here all the many ways to join the movement.



  • earth day
  • global campaign
  • citizen science