Wood Romances

The Winery I've found that is the farthest North  63.47°N A common trope from contrarian activists is that the roman warm period ( RWP ) and medieval warm period ( MWP ) were warmer than today. The proxy data we have conclusively show this to be false, but most of these contrarians reject the proxy evidence in reputable studies. Instead, you often hear claims based on a misuse of historical data, one example being that during the RWP and MWP, you could grow wine in England , but you can't now. Therefore, the globe was warmer then than now. One version of this trope is: The Romans wrote about growing wine grapes in Britain in the first century,” says Avery, “and then it got too cold during the Dark Ages . Ancient tax records show the Britons grew their own wine grapes in the 11th century, during the Medieval Warming, and then it got too cold during the Little Ice Age . It isn’t yet warm enough for wine grapes in today’s Britain. Wine grapes are among the most accurate and se...

Recently I've seen people posting the following graph from Tony Heller, which is intended to show a cooling trend in temperatures following the 1940s and suggest that the "start of the satellite record" begins when temperatures are at their low point. Heller's graph is unsourced except for being called "Briffa's Reconstruction." This graph has shown up on Twitter, and so far I haven't seen any one identify the source of this data or even what the data represents. However, I was able to determine that up through 1960, the data is identical to Briffa 2001[1], and the data is on an Excel spreadsheet on an FTP site maintained by NOAA for plate 3 of Briffa's paper. The same site also has regional data that includes years following 1960 (plate 2 in Briffa's paper), but Briffa is clear that the post-1960 data does not have a clear temperature signal. Briffa writes, "The period after 1960 was not used to avoid bias in the regression coefficients...