25 ~ Earth Day Pledge Certificates ~ Paper ~ 8.5" X 11" ~ New 25 ~ Earth Day Pledge Certificates ~ Paper ~ 8.5" X 11" ~ New in sealed package. Say: I know my actions are important to Earth's survival. Here's what I will do to help save the Earth. I pledge to: Includes a space for children to write their own pledge to help save the earth and sign it.