Earth warming 50 times faster than the last 5,000 years of cooling

Temperature change over past 11,300 years (in blue, via Science, 2013) plus projected warming 
this century on humanity's current emissions path (in red, via recent literature).

An extraordinary look at 11,300 years of temperature data confirms that the global temperature is higher than at anytime in the last 4,000 years and is warming 50 times faster than the rate of cooling over the last 5,000 years. [Climate Progress] [Science]