Doubling down on doozy: Anthony Watts is now denying the Little Ice Age

Professor Michael Mann recently wrote a response to a denier (who'd accused him of fraud), and corrected him, saying that:

Mr. Sauer begins by promoting the falsehood that “temperatures exceeded what we have today at a time (the Medieval period) when today’s industrialization did not exist”. That is so shopworn a myth that it ranks among the top climate change denier talking points (see the response to this myth by the scientist-run website Skeptical Science). The scientific consensus today is that, while some regions of the globe were relatively warm during the Medieval era, the warmth was not nearly as widespread as today. The overall warmth of the globe and northern hemisphere today is substantially greater than during Medieval time. Mr. Sauer might also want to take note that the year 2015 is off to the warmest start ever, 2014 was the warmest full year on record, and took place during the warmest decade on record.

A couple of days ago I wrote about how Anthony Watts used a wonky chart of temperatures on the summit of the ice sheet in central Greenland, arguing that it "proved" that Professor Mann and all the world's paleoclimatologists were wrong and he, science denying conspiracy theorist was right.

In support of his wrong claim that it was globally hotter in medieval times than it is today, Anthony tried to claim:

• the temperature of the ice sheet in Central Greenland in 1855 was a good proxy for global surface temperature of 2015. 
• if it was widely cold more than 11,500 years ago (the Younger Dryas), then it must have got hotter globally 1,000 years ago.

You say "huh? where's the logic in that?" and I say "there's none". Well, Anthony's doubled down, shifting his focus to a mountainous region in Spain (archived here).

Conspiracies, volcanoes, and two thousand years of ocean cooling and warming

Deniers at WUWT are (belatedly) trying to shoot down a paper published in Nature GeoScience last month. It's from authors who are part of the Ocean2k project, the ocean component of the PAGES 2K international consortium. The lead author is Helen McGregor from the University of Wollongong in Australia.

Anthony Watts was first to protest (archived here). In a bout of denial at WUWT, he claimed that just because there were a lot of volcanic eruptions on earth from somewhere around 1200 AD to 1800 AD, it doesn't mean they caused the observed cooling. He wrote a headline: "The new poster child for ‘correlation is not causation’: industrial revolution ended 1800 years of volcanic induced cooling".

In that one headline he rejected both greenhouse and volcanic forcing. Naturally, he didn't say what he thinks caused the earth to cool over time, or what is causing the current warming. More of the WUWT magic?