With Earth Day coming up, Pokémon Go is trying to do its part to make the world a better (and cleaner) place by offering some unique rewards to users who simply pick up trash on April 22.

Developer Niantic has partnered up with local organizations in an effort to band together as many people as possible for cleanup events around the world. There will be a total of 37 events in 12 different countries being held later this month. “Earth Day is an incredible movement and opportunity to team up with friends and neighbors to focus on making the world and our own communities healthy and sustainable,” Niantic CEO John Hanke said in a statement. 

Here are the details, courtesy of Niantic:

All trainers will receive access to a special avatar item to celebrate Earth Day and those who work together to participate in the cleanups around the world will unlock unique in-game rewards for the entire world. If 1,500 trainers attend the events around the world, 2x catch stardust for ground, water, and grass-type pokémon will be unlocked for 48 hours. If more than 3,000 trainers participate in the clean up events, 3x catch stardust for ground, water, and grass-type pokémon for 48 hours will be unlocked for trainers around the world.

If you still actively play Pokémon Go, and want access to some unique rewards, all you have to do is a good deed for a great cause. They're not asking for much, and everyone comes out winning in the end. 

Head here for more info