Citaat:
Oorspronkelijk geplaatst door Micele
In Wiki staat nog meer over MWP, globaal dan, en verwijst naar Michael Mann...
Citaat:
http://en.wikipedia.org/wiki/Medieval_Warm_Period
Globally
Studies by Michael Mann et al. find that the MWP shows "warmth that matches or exceeds that of the past decade in some regions, but which falls well below recent levels globally".[7]
Their reconstruction of MWP pattern is characterised by warmth over large part of North Atlantic, Southern Greenland, the Eurasian Arctic, and parts of North America which appears to substantially exceed that of modern late 20th century (1961-1990) baseline and is comparable or exceeds that of the past one-to-two decades of in some regions.
Certain regions such as central Eurasia, northwestern North America, and (with less confidence) parts of South Atlantic, exhibit anomalous coolness.
[7] http://www.meteo.psu.edu/~mann/share...lScience09.pdf
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Die regionale opwarming is dubieus. En als ze al bestond, welk mechanisme was verantwoordelijk voor die regionale, maar niet globale opwarming?