Global Warming?

[Brad De Long]

Re:
>
>Doyle
>Hmmmm a difficult conundrum.  400 years ago the newscasts reported
>temperatures as hot as it is outside today!  My understanding was in
>Shakespheare's time there was a qualitative difference in peoples
>attitude.  For instance every house measured the temperature in the
>shade over the carriage entryway, and in the wine cellar.  Peasants
>spent at least part of their day going from field to field faithfully
>recording the variation of local temperatures.  This coupled with French
>weather satellites being launched in Africa were some of the first most
>reliable observations of earth temperatures then extent.  After four
>hundred years those records have finally fallen.  : )
>
See:

Hubert H. Lamb (1965), "The Early Medieval Warm Epoch and Its Sequel,"
_Paleogeography, Paleoclimatology, Paleoecology_ vol. 1, pp. 13-17.

D. Raynaud _et al._ (1993), "The Ice Core Record of Greenhouse Gases,"
_Science_ 259, pp. 926-34.