Scientists Confirm Medieval Warming Exceeds Modern Warming In Alaska: It's Non-CO2 Climate Change
Read here. Much has been made by global warming alarmists about the warming of Alaska since the 1970's and thus inferring it is due to human CO2 emissions. What they conveniently fail to mention is that most of the warming was due to a major PDO (Pacific Decadal Oscillation) shift to a warming phase that took place during the late 70's.
And, they always fail to point out that peer-reviewed research shows that the Alaskan climate was both warmer and cooler than the current climate over the last 2,000 years. (click on image to enlarge)
"In commenting on these findings, Hu et al. remark that "the warmth before AD 300 at Farewell Lake coincides with a warm episode extensively documented in northern Europe whereas the AD 600 cooling is coeval with the European 'Dark Ages'." They also say that "the relatively warm climate AD 850-1200 at Farewell Lake corresponds to the Medieval Climatic Anomaly, a time of marked climatic departure over much of the planet." And they say that "these concurrent changes suggest large-scale teleconnections in natural climatic variability during the last two millennia, likely driven by atmospheric controls.""....."Noting that "20th-century climate is a major societal concern in the context of greenhouse warming," Hu et al. conclude by reiterating that their record "reveals three time intervals of comparable warmth: AD 0-300, 850-1200, and post-1800," and they say that "these data agree with tree-ring evidence from Fennoscandia, indicating that the recent warmth is not atypical [it's not unusual] of the past 1000 years,"