One of the things that was done during these negotiations was a synthesis report from the secretariat of the convention that looked at all the countries' first commitments last year. It did an assessment and said that this would put us at around a 2.7° temperature rise. That was a key aspect in the agreement to put in an ambition in a cycle so that this ambition will increase over time to bring us down to 2 degrees. Right now we're at about 2.7 degrees.
On February 18th, 2016. See this statement in context.