Update: Patrick Brown, the lead author, has just written an article about his paper, at realclimate.org. He is answering some questions in the comments.
Sou 14 May 2015
Anthony Watts (archived here) has posted a press release about a new paper in Nature's open access journal, Scientific Reports. The research was led by Patrick T. Brown, a PhD student Duke University. What the scientists did was compare recent and projected climate change with that which has occurred over the past 1,000 years - mostly in the northern hemisphere (which is where there is most data). They looked at the recent global temperatures and compared them with projections of climate models - and drew what I see as overly-confident conclusions.
I feel a bit stretched on this subject, and am happy to be shown if I'm wrong about this.
