Help scientists by observing seasonal changes in plants.

Help monitor butterfly populations worldwide using checklist surveys

Document river ice conditions all around the world.

Empower people to do citizen science using their own devices.

To understand the impacts of light pollution.

Help scientists understand the sky from above and below.

Track land cover state, condition, and changes.

Reduce risk of vector borne disease in your community.

Observe trees to understand changes in biomass and effects on the carbon cycle.