"Pokemon Go's Grass and Gratitude Event Offers Free Shaymin and Sustainability Tasks"
Pokémon Go's latest in-game event, Grass and Gratitude, has begun and includes the free release of Grass-type Mythical Pokémon Shaymin. The event's new Special Research questline has a title that fans believe contains a nod to 4/20, and it coincides with the game's Sustainability Week. This is the second year in a row that Pokémon Go developer Niantic has held a Sustainability Week event over 4/20.