The Paris Agreement is a global agreement to combat climate change by limiting global warming to well below 2 degrees Celsius above pre-industrial levels. It was adopted by 196 countries at the United Nations Climate Change Conference in 2015. However, not all countries have signed the agreement. Here are the countries that have not signed the Paris Agreement.

1. United States: The United States, the second-largest emitter of greenhouse gases after China, withdrew from the Paris Agreement in 2020. Former President Donald Trump claimed that the agreement would harm the US economy and cost American jobs.

2. Iran: Iran, the world`s eighth-largest oil producer, has not signed the Paris Agreement. The country has been heavily dependent on its oil industry for revenue, and it is unlikely to cut back its emissions.

3. Iraq: Iraq, the world`s fifth-largest oil producer, has not signed the Paris Agreement. The country has been affected by years of conflict, and its oil industry is a critical source of revenue.

4. Libya: Libya, the ninth-largest oil producer in Africa, has not signed the Paris Agreement. The country has been in a state of political chaos since the ousting of former leader Muammar Gaddafi in 2011.

5. Eritrea: Eritrea, a small country in Africa, has not signed the Paris Agreement. The country has a low carbon footprint, and its economy is largely based on agriculture.

6. South Sudan: South Sudan, the youngest country in the world, has not signed the Paris Agreement. The country has been affected by years of conflict, and its economy is largely based on oil.

7. Yemen: Yemen, a country located in the Middle East, has not signed the Paris Agreement. The country has been affected by years of conflict, and its economy is largely based on oil.

8. Turkey: Turkey, a country located in both Europe and Asia, has not signed the Paris Agreement. The country has been in a state of political turmoil in recent years, and its economy is largely based on industry and tourism.

9. Russia: Russia, the world`s fourth-largest emitter of greenhouse gases, has signed but not ratified the Paris Agreement. The country`s economy is heavily dependent on its oil and gas industry.

In conclusion, the countries that have not signed the Paris Agreement are largely dependent on their oil and gas industry for their economy. It is important for these countries to join the global effort to combat climate change and reduce their carbon footprint for the greater good of the planet.