The Paris Agreement was a historic commitment made by 196 countries worldwide to take action against the increasing threat of climate change. The agreement was signed at the United Nations Climate Change Conference in Paris, France, in 2015 and officially came into force in 2016. However, there seems to be some confusion as to when this agreement will come to an end.

To answer the question, the Paris Agreement does not have an end date. Instead, it is an ongoing agreement with the primary aim of limiting global warming to well below 2 °C above pre-industrial levels, and preferably limiting to 1.5°C, with the implementation of adaptation measures to protect and enhance the resilience of vulnerable countries and populations.

The Paris Agreement is a long-term agreement that is meant to provide a framework for action on climate change for years to come. It acknowledges that the climate change problem requires long-term and sustained action, and therefore, it is crucial that the agreement remains in place and effective for as long as possible to achieve its goals.

However, the Paris Agreement does have a review mechanism in place. Every five years, countries are required to submit revised plans to reduce their greenhouse gas emissions, which will be reviewed and updated by the United Nations Framework Convention on Climate Change (UNFCCC).

The first review of the Paris Agreement was scheduled to take place in 2020, but due to the COVID-19 pandemic, it has been postponed to 2021. This review is considered an important opportunity for countries to re-commit to the goals set by the Paris Agreement and to scale up their efforts to reduce their greenhouse gas emissions.

In conclusion, the Paris Agreement does not have an end date, and it is an ongoing agreement aimed at limiting global warming and protecting vulnerable populations. Instead, it has a review mechanism in place for countries to update their plans every five years to ensure continued progress in achieving the agreement`s goals.