Montreal Protocol

The Montreal Protocol, officially the Montreal Protocol on Substances That Deplete the Ozone Layer, is an international treaty to protect the ozone layer. It aims to stop making substances that harm the ozone layer. The treaty was agreed on 16 September 1987 and started on 1 January 1989. It has been changed many times since then, with updates in 1990 (London), 1992 (Copenhagen), 1995 (Vienna), 1997 (Montreal), 1999 (Beijing), 2007, 2016 (Kigali), and 2018 (Quito).

The Montreal Protocol has been agreed to by 198 parties (197 states and the European Union). This makes it the first universally ratified treaty in United Nations history. Because so many countries followed it, it is seen as a good example of international work together. Former United Nations (UN) Secretary-General Kofi Annan called it perhaps the most successful international agreement ever.

Because of the Protocol, the ozone hole over Antarctica is slowly getting better. Scientists think the ozone layer will be back to 1980 levels by 2040 in most places and by 2066 over Antarctica.

Terms and purposes

The Montreal Protocol is an international agreement to protect the Earth's ozone layer. It aims to reduce the use of certain chemicals that harm the ozone. The agreement sets out timelines for stopping the production of these chemicals, called ozone-depleting substances (ODSs).

Different rules apply to developed and developing countries. Developing countries are given more time to meet these goals. There is also a financial system to help developing countries follow the agreement. The main goal is to slowly reduce and eventually stop using these harmful chemicals. This helps protect the ozone layer, which shields the Earth from harmful sunlight. The agreement has been updated many times to include new chemicals and better ways to protect the ozone layer.

History

In 1974, scientists Frank Sherwood Rowland and Mario Molina from the University of California, Irvine found that some chemicals called CFCs could hurt the Earth’s ozone layer. These chemicals could go high into the sky and break down the ozone that shields us from harmful sunlight.

Because of this discovery, countries began discussing ways to protect the ozone layer. In 1985, scientists saw a large hole in the ozone layer above Antarctica, showing how serious the problem was. This led to the Montreal Protocol in 1987, an agreement for many countries to stop using chemicals that harm the ozone. Thanks to this effort, the ozone layer is getting better today.

Multilateral Fund

The Multilateral Fund helps countries that are still using substances that harm the ozone layer. These countries use less than 0.3 kilograms of these substances per person each year. The fund supports them in stopping the use of these harmful substances.

The fund is managed by a group with equal numbers from countries that use more of these substances and countries that use less. Four main organizations help carry out the fund’s work in these countries. They are the United Nations Environment Programme, United Nations Development Programme, United Nations Industrial Development Organization, and the World Bank. The fund gets money every three years from countries that agree to help. This money is used for things like changing old ways of making products, training people, and setting up offices to protect the ozone layer.

Parties

As of October 2022, every country in the world has agreed to follow the Montreal Protocol. This includes places like the Cook Islands, Niue, the Holy See, the State of Palestine, and the European Union. Altogether, 198 countries and groups follow these rules. Most of them also agree to extra rules added later.

Effect

Since the Montreal Protocol started, the amount of some chemicals that hurt the ozone layer has gone down. Some chemicals used in fire extinguishers are still being released, but they are not increasing as fast as before. Because of this agreement, the ozone layer is beginning to heal.

The protocol also helps protect people from health problems, like skin cancer, that can happen from too much sun. However, some chemicals used to replace the harmful ones can also warm the Earth. In 2016, the protocol was updated to reduce these warming chemicals. This makes the Montreal Protocol important for both the ozone layer and the climate.

25th anniversary celebrations

In 2012, people around the world celebrated the 25th anniversary of the Montreal Protocol. This important agreement was made to protect the ozone layer by stopping the use of certain chemicals.

The Montreal Protocol was the first treaty to tackle a global environmental problem. It was also the first to use science to make policies and to include rules for both rich and poor countries. Within 25 years, the world stopped using most of the chemicals that hurt the ozone layer. Every country followed the rules, showing how the world can work together to protect our planet.