Fifty years ago, Earth Day became the largest people’s protest in the history of the world.

And we changed the world for the better, by creating clean air and clean water laws—with the help of scientists, policy leaders, and a movement that couldn’t be stopped.

Today’s environmental threats of extreme climate change, pollution to our air and water can feel overwhelming.

Fortunately, the Earth Day Network, the U.S Department of State’s Eco-Capitals Forum, and The Woodrow Wilson International Center for Scholars are launching Earth Challenge 2020, the world’s most accessible and transparent citizen science database portal ever created.

The initiative will combine data from existing citizen science projects with information from a new mobile app to shed light on key environmental issues and grow citizen science worldwide. 

And we need your help.

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