Nicholas E. Graham1, 2 , Malcolm K. Hughes3, Caspar M. Ammann4, Kim M. Cobb5, Martin P. Hoerling6, Douglas J. Kennett7, James P. Kennett8, Bert Rein9, Lowell Stott10, Peter E. Wigand11, 12 and Taiyi Xu6
Received: 16 February 2006 Accepted: 18 December 2006 Published online: 3 April 2007
Abstract Terrestrial and marine late Holocene proxy records from the western and central US suggest that climate between approximately 500 and 1350 a.d. was marked by generally arid conditions with episodes of severe centennial-scale drought, elevated incidence of wild fire, cool sea surface temperatures (SSTs) along the California coast, and dune mobilization in the western plains. This Medieval Climate Anomaly (MCA) was followed by wetter conditions and warming coastal SSTs during the transition into the “Little Ice Age” (LIA). Proxy records from the tropical Pacific Ocean show contemporaneous changes indicating cool central and eastern tropical Pacific SSTs during the MCA, with warmer than modern temperatures in the western equatorial Pacific. This pattern of mid-latitude and tropical climate conditions is consistent with the hypothesis that the dry MCA in the western US resulted (at least in part) from tropically forced changes in winter NH circulation patterns like those associated with modern La Nià±a episodes. We examine this hypothesis, and present other analyses showing that the imprint of MCA climate change appears in proxy records from widely distributed regions around the planet, and in many cases is consistent with a cool medieval tropical Pacific. One example, explored with numerical model results, is the suggestion of increased westerlies and warmer winter temperatures over northern Europe during medieval times. An analog technique for the combined use of proxy records and model results, Proxy Surrogate Reconstruction (PSR), is introduced.

despite strong warming of the tropical oceans

Maybe the oceans haven’t warmed after all and ACE is an indirect and better measure of the actual ocean temperatures.

ACE is the best single measure of global hurricane and typhoon activity. It is a function of storm numbers, intensities and duration.

As the chart shows, global ACE shows little change over the last twenty-five years, despite strong warming of the tropical oceans. (Data before the early 1980s suffers from measurement limitations, so little can be said about longer-term trends, if any.)

According to Monckton, the British government is footing the entire bill for the IPCC.

If so, no way could they come out with a report showing no warming, no crisis, that CO2 is insignificant compared to methane, etc.

The carbon trading markets would collapse (again) and the UK is specifically very invested in those.

When the “do-do” hits the fan, the people of FL will largely absorb and cover their own losses.

Would you like to place a small wager on that? We should be so lucky. When (not if) Citizens goes belly up, do you really think they won’t demand to be (and get) bailed out by the rest of the US taxpayers?

Of course, maybe this is really the way it should be. But please, don’t blame real insurance companies for heading for the hills.

Of all tyrannies, a tyranny exercised for the good of its victims may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron’s cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end, for they do so with the approval of their consciences.   —C.S. Lewis