Great example how science becomes life saving environmental policy. This fantastically produced piece shows the history of how the Antarctic Ozone Hole was discovered by a graduate student, then reported in a few newspapers. Chemicals dumped into the environment were the cause.
The public picked up the story of the Ozone Hole and got really, really worried that corporations were putting too much pollution into the air. They formed partnerships with environmental groups, universities, and certain governments, and lobbied other world leaders to help fill in the Ozone Hole.
Eventually, leaders agreed on the Montreal Protocol - a system of cap and trade that limited the amounts of pollution companies could dump into the environment. A must watch for budding environmentalists, policies wonks, and science-types.
Today, the Montreal Protocol loosely serves as the model for cap-and-trade system of the Kyoto Protocol, European Union Emissions Trading Scheme, Regional Greenhouse Gas Initiative, California’s AB 32, and many other systems around the world.
Today is the International Day for the Preservation of the Ozone Layer. Take a deep breath.
Have a look at the UNDEP’s ozone website for more information.