The Paris Agreement is a legally binding international treaty on climate change. The goal of the agreement is to limit global warming to well below 2 degrees Celsius, preferably to 1.5 degrees Celsius, compared to pre-industrial levels.

Carbon dioxide (CO2) is the primary greenhouse gas emitted by human activities. It is released into the atmosphere through the burning of fossil fuels, deforestation, and other human activities.

Transportation is the largest contributor to greenhouse gas emissions globally, accounting for approximately 23% of total emissions. The burning of fossil fuels for transportation, such as gasoline and diesel, releases large amounts of carbon dioxide into the atmosphere.

Carbon pricing policies aim to reduce greenhouse gas emissions by putting a price on carbon pollution. This can be done through carbon taxes or cap-and-trade systems.

Sweden was the first country to implement a nationwide carbon tax in 1991.

Energy efficiency policies aim to reduce energy consumption by promoting the use of more efficient technologies and practices.

The United Nations Framework Convention on Climate Change (UNFCCC) is the international organization that coordinates global efforts to combat climate change.

Forest conservation policies in the context of climate change primarily aim to reduce deforestation, as forests play a crucial role in absorbing carbon dioxide from the atmosphere.

The Montreal Protocol is an international agreement that aims to phase out the production and consumption of hydrofluorocarbons (HFCs).

Renewable energy policies aim to promote the use of renewable energy sources, such as solar, wind, and hydropower, to reduce greenhouse gas emissions and transition to a sustainable energy system.

The Intergovernmental Panel on Climate Change (IPCC) is the international organization that provides scientific assessments on climate change.

Sustainable transportation policies aim to reduce greenhouse gas emissions from the transportation sector by promoting public transportation, walking, cycling, and the use of more efficient vehicles.

The Paris Agreement includes a goal to reduce emissions from deforestation and forest degradation.

Energy infrastructure policies in the context of climate change primarily aim to reduce greenhouse gas emissions by promoting the development of low-carbon energy sources and improving the efficiency of energy transmission and distribution systems.

The International Civil Aviation Organization (ICAO) coordinates efforts to reduce emissions from international aviation.