What is the Paris Agreement? In December 2015, 195 countries signed a landmark agreement at the United Nations Framework Convention on Climate Change Conference of the Parties in Paris, committing to limit global temperature rise to below 2C against pre-industrial levels. 171 countries have now ratified this agreement, setting individual national emissions reductions goals to help reach this target. Targets and progress will be re-evaluated every 5 years. The Agreement also promises financial support to developing countries to help them adapt to and mitigate climate change. The deal is the first in history to unite all nations in one agreement to tackle climate change. Find out more.