Earth Day Network

Earth Day is an annual event, celebrated on April 22, on which day events worldwide are held to demonstrate support for environmental protection. It was first celebrated in 1970, and is now coordinated globally by the Earth Day Network and celebrated in more than 193 countries each year. Wikipedia*

On the C-SPAN Networks:
Earth Day Network has hosted 1 event in the C-SPAN Video Library; the first program was a 2017 Rally.