The Paris Climate Agreement is a landmark international treaty aimed at reducing greenhouse gas emissions and limiting global warming to well below 2 degrees Celsius above pre-industrial levels. The agreement was adopted by 196 parties to the United Nations Framework Convention on Climate Change (UNFCCC) in 2015 and has since been ratified by over 180 countries.

The Paris Agreement sets a long-term goal to reach net-zero greenhouse gas emissions in the second half of this century, while also providing a framework for countries to take action in the short term to reduce their emissions. The agreement encourages countries to increase their use of renewable energy, improve energy efficiency, and adopt other measures to reduce their reliance on fossil fuels.

Despite the progress made in ratifying the Paris Agreement, there are still significant challenges to be addressed in order to achieve its goals. Many countries are struggling to meet their emission reduction targets, and the lack of ambition in some countries' pledges has been criticized. Additionally, the agreement does not provide a clear roadmap for how to finance the transition to a low-carbon economy, which is a critical component of achieving its goals.