The current wave of "warming" is the longest in 1,200 Years. According to the researchers:
"We found that between [A.D.] 890 and 1170, there was statistically significant widespread warmth corresponding approximately to the so-called Medieval Warm Period... However, the most widespread warmth was found not in the Middle Ages but during the 20th century."
Here's the article.
The researchers believe that "this latest paper might be the nail in the coffin for the small minority of very vocal climate change denialists who continue to challenge the conclusion that the recent warming of the Earth's surface is out of the ordinary."
Dream on, scientists. The people who deny global warming don't believe in science. They believe in money. And the money says there is no global warming. They won't believe it even if they see it... Right, Texxon?