This poster has a few drawings that each have meaning. The ribbon wrapped around the earth represents the Montreal Protocol and shows that it is protecting the Earth and Ozone Layer. The Spray can, fire extinguisher, and fridge, all represent some of the products that contain harmful chemicals (such as CFC) which is harming the Ozone Layer. But, thanks to the Montreal Protocol and the Kigali Amendment, they have been banned in most countries, and have been changed to better alternative products