According to Michael E. Mann, in 2100 it's +4.5C with no action, +3.5C with just the Paris Accord, and +1.8C with ratcheting up. (https://pbs.twimg.com/media/DBQpulkWAAE2mrc.jpg)
"Climategate" was reviewed extensively by numerous organizations and no wrongdoing was found. https://en.wikipedia.org/wiki/Climatic_Research_Unit_email_c...
By the way, Mann was forced to stop calling himself a 'Nobel Prize recipient', after it was found out that he wasn't directly awarded the prize; it was awarded to the IPCC.[2]
[1] https://wattsupwiththat.com/2017/03/29/reflections-on-mark-s...
[2] http://www.nationalreview.com/corner/331738/michael-manns-fa...