Was the 2015 Paris Climate Agreement a success?

The 2015 Paris Climate Agreement was a success in so far as it brought all the world's countries together and got them to agree to do something.

All countries get to state their own goals for reducing greenhouse gas emissions. Most of these goals are not good enough to keep global temperature rise below 2 degrees Celsius. However, countries have to report every five years on their success, and this may make them become more ambitious.

We will know if the Climate Agreement is working by 2025 and 2030.