Earth Day 2024

https://www.earthday.org/earth-day-2024/

https://www.earthdayinitiative.org/

Also…

For Earth Day (April 22), We Examine Some of Our Work on Challenges Facing the Planet [US Government Accountability Office (GAO)]

https://www.gao.gov/blog/earth-day-april-22-we-examine-some-our-work-challenges-facing-planet