The agreement provides a pathway forward to limit temperature rise to well below 2 degrees Celsius, maybe even 1.5, and it provides a mechanism to increase the level of ambition.
"From young activists to artists, faith leaders to business leaders, mayors to mothers, all of society has come together under one banner and brought forth this moment of hope," writes Mr. Ban.
“The Paris Agreement is a monumental triumph for people and our planet,” said Mr. Ban in a tweet, immediately following its adoption. “It sets the stage for progress in ending poverty, strengthening peace and ensuring a life of dignity and opportunity for all.”
The UN Assistant Secretary-General on Climate Change took a break from negotiations to answer questions on the Reddit forum on climate change and the UN Climate Change Conference.
For the next two weeks we will share highlights here from the heart of what will be one of the biggest climate conferences ever.