In Pokémon GO the Sustainability Week has started. This environmental event in April 2021 brings you new quests as field research and also a limited research. We show you here what has changed for you.
How long does the event last? The starting point of the Sustainability Week was April 20 at 10:00 AM. The event runs until Sunday, April 25 at 8:00 PM local time. After the start of the event, players from the community compiled changes that we will show you in this overview here on MeinMMO. This also includes the start of a limited research.
In Pokémon GO, there are different types of research tasks that you can complete. The limited research tasks are only available to you for a limited time. After the time expires, you can no longer complete the quests. This is different from special research or field research, which do not expire.
Limited Research and Rewards for the Environmental Event
The bonuses in a quick overview:
- A sustainability campaign is available
- For the first time, Bithora appears in Pokémon GO
- The following Pokémon appear in the wild: Sleima, Rotomurf, Unratütox, and Kastadur
- Shiny Unratütox is available for the first time
- In the 5 km eggs appear: Digda, Tangela, Goldini, Knospi, Kikugi, Finneon, and Rotomurf
- There are exclusive quests and limited research
- A free t-shirt for your avatar

We will first show you the three chapters of the research for the Sustainability Week. Further down in the article, we will provide you with an overview of new raid bosses and quests.
Environmental Research 1/3
| Task | Reward |
| Use 5 berries to catch Pokémon | Encounter with Myrapla |
| Catch 7 Pokémon of type Water | Encounter with Goldini |
| Catch 7 Pokémon with Weather boost | Encounter with Knofensa |
Stage Reward: If you successfully complete all three tasks, you will receive 20 Mega Energy for Bisaflor, 1,000 experience points, and an encounter with Chelast.
Environmental Research 2/3
| Task | Reward |
| Use 5 berries to catch Pokémon | Encounter with Tangela |
| Catch 5 different species of Plant Pokémon | Encounter with Kastadur |
| Send 5 gifts to friends | Encounter with Phanpy |
Stage Reward: If you successfully complete all three tasks, you will receive 20 Mega Energy for Bisaflor, 1,500 experience points, and an encounter with Chelcarain.
Environmental Research 3/3
| Task | Reward |
| Use 7 berries to catch Pokémon | Encounter with Kinoso (Sun) |
| Catch 40 Pokémon of type Plant | Encounter with Alola-Digda |
| Use a smoke* | Encounter with Bithora |
Stage Reward: If you successfully complete all three tasks, you will receive 60 Mega Energy for Bisaflor, 2,500 experience points, and an encounter with Bisaflor. Instead of smoke, you can also activate a Meltan box. With this guide, you will receive the Meltan box for free in Pokémon GO.
New Raids and Quests for the Environmental Week
The new raid bosses: There have been several changes in the gyms in Pokémon GO. Around 11:00 AM, you will see the new bosses appearing. In the following table, you will find out which bosses they are.
| Difficulty | Bosses |
| Tier 1 | Unratütox Bithora Alola-Digda Enton Kastadur |
| Tier 3 | Giflor Alola-Kokowei Chelterrar Camerupt Rizeros |
| Tier 5 | Demeteros (Tiergeistform) |
| Mega | Bisaflor Rexblisar Schlapor |
These quests are available: You can now receive new field research from PokéStops, fitting for the “Trash Event”. You will also find quests that were available before the event. The following quests have been added or changed their rewards for the event.
- Catch 5 Sleima
- Reward: Encounter with Seemops or Piccolente
- Use 3 golden Razz Berries to catch Pokémon
- Reward: Encounter with Bithora
- Use 5 berries to catch Pokémon
- Reward: Encounter with Igamaro
- Catch 5 Unratütox
- Reward: Encounter with Waumboll
- Use a smoke
- Reward: Encounter with Strawickl
- AR scan
- Reward: Encounter with Kastadur, Burmy, or 80 Mega Energy for Bisaflor
How do you like the sustainability event in Pokémon GO? Please share your opinion here in the comments and let us know your goals for the event. Are you looking for specific Shinys?