Neil R. Kaye toils in the Met Office, the weather service for Great Britain. He tracks global heating as a vocation, and does very good explanations.
Recently he posted on Twitter, with a great little movie:
Lesson is, we need to act now. The faster and harder we can act to block global heating, the greater chance we have of saving a place for humans on this planet without massive loss.
Check out his thread on Twitter.
See this chart by a frequent quality poster @TheDisproof, a static graph of heating since 1880.