Earth Day is an annual celebration that honors the achievements of the environmental movement and raises awareness of the need to protect Earth’s natural resources for future generations. The first Earth Day in 1970 paved the way for updating of the Clean Air Act and passage of the Endangered Species Act. https://education.nationalgeographic.org/resource/earth-day/
Check online for events on and around April 22 in your neighborhood. Here are two city-wide ones:
Earth Day Houston
Festival April 22 from noon to 5:00 PM – Discovery Green
https://cechouston.org/earth-day-houston/
Earth Day HTX
Speaker Series April 17 and 18 beginning at 9:00 AM each day – Julia Ideson Library
Festival April 19 from 10:00 AM to 2:00 PM – Houston City Hall
https://www.houstontx.gov/events/earthdayhtx.html
NASA