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Celebrate Earth Day and Arbor Day with SciStarter and Citizen Science!

Celebrate Earth Day April 22! Discover five tree-focused projects, including PhillyTreeMap and the Leafsnap app for tree ID.

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Photo: NPS

Earth Day is April 22 and Arbor Day (in the USA) is April 24!

Just about every one of the 1,000 projects featured on SciStarter contributes to a better planet but here five projects you can do to participate in research about trees, just about anywhere on Earth.

Cheers!

The SciStarter Team

Photo: NPS

PhillyTreeMap

Covering 13 counties in three states, this project's goal is to create an inventory of all the trees in the Philadelphia metropolitan area. That will enable scientists to estimate the environmental benefits the region receives from its trees.

Get Started!

Phoot: NPS

TreeKIT

This project relies on volunteers to locate and record the positions of curbside trees in East Harlem, New York. That information will then be used to assign tree stewards and help government agencies with tree maintenance.

Get Started!

Photo: EarthWatch

Explore Boston's Urban Forest

Identify Boston's trees to learn what ...

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