| Boston, MA | open | Residential Trash out Illegally | |  | over 2 years ago |
| Boston, MA | open | CE Collection | |  | over 2 years ago |
| Boston, MA | open | Illegal Dumping | | | over 2 years ago |
| Köln / Cologne, Deutschland | open | Kölner Grün | Streumüll und >20 Zigarettenfilter/-kippen im Bereich der Sitzbank. |  | over 2 years ago |
| Köln / Cologne, Deutschland | open | Kölner Grün | Streumüll im Bereich der Sitzbank. |  | over 2 years ago |
| Boston, MA | open | CE Collection | |  | over 2 years ago |
| Ottawa, ON | Open | City Trees - Determine Health | Water and the Environment / Forestry - Tree Maintenance / City Trees - Determine Health | | over 2 years ago |
| Ottawa, ON | Open | City Trees - Trees in Trust | Water and the Environment / Forestry - Tree Planting / City Trees - Trees in Trust | | over 2 years ago |
| Boston, MA | open | Needle Clean-up | |  | over 2 years ago |
| Ottawa, ON | Open | City Trees - Trees in Trust | Water and the Environment / Forestry - Tree Planting / City Trees - Trees in Trust | | over 2 years ago |