The Convention on Long-Range Transboundary Air Pollution was signed in 1979 and entered into force in 1983. It is the first international agreement to address the issue of air pollution.

The main objective of the Convention on Long-Range Transboundary Air Pollution is to reduce air pollution emissions, protect human health and the environment from air pollution, and promote international cooperation on air pollution issues.

The Convention on Long-Range Transboundary Air Pollution is open to all countries in the world. As of 2020, there are 51 parties to the Convention.

The Convention on Long-Range Transboundary Air Pollution addresses a wide range of air pollutants, including sulfur dioxide, nitrogen oxides, volatile organic compounds, and particulate matter.

Countries can take a variety of measures to reduce air pollution under the Convention on Long-Range Transboundary Air Pollution, including reducing the use of fossil fuels, promoting the use of renewable energy sources, and improving energy efficiency.

The Kyoto Protocol is an international agreement to reduce greenhouse gas emissions. It was adopted in 1997 and entered into force in 2005.

The Kyoto Protocol addresses a wide range of greenhouse gases, including carbon dioxide, methane, nitrous oxide, and hydrofluorocarbons.

Countries can take a variety of measures to reduce greenhouse gas emissions under the Kyoto Protocol, including reducing the use of fossil fuels, promoting the use of renewable energy sources, and improving energy efficiency.

The Paris Agreement is an international agreement to reduce greenhouse gas emissions. It was adopted in 2015 and entered into force in 2016.

The Paris Agreement addresses a wide range of greenhouse gases, including carbon dioxide, methane, nitrous oxide, and hydrofluorocarbons.

Countries can take a variety of measures to reduce greenhouse gas emissions under the Paris Agreement, including reducing the use of fossil fuels, promoting the use of renewable energy sources, and improving energy efficiency.

There are a number of challenges to implementing international agreements on air pollution, including the high cost of reducing air pollution, the lack of political will to reduce air pollution, and the difficulty of enforcing international agreements.

International cooperation on air pollution can lead to a number of potential benefits, including reduced air pollution emissions, improved human health and the environment, and increased economic growth.

Countries can cooperate on air pollution issues in a number of ways, including sharing information and data on air pollution, developing and implementing joint air pollution reduction strategies, and providing financial and technical assistance to other countries.

The United Nations Environment Programme (UNEP) plays a key role in international cooperation on air pollution. It provides a forum for countries to discuss air pollution issues, develops and implements international air pollution reduction strategies, and provides financial and technical assistance to countries to reduce air pollution.