Hittade en artikel som hävdar att historiska klimatdata har manipulerats
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Citat:
What if they then crossed out all your temperature measurements, did a few calculations on the back of an envelope, and scribbled in their amendments? And you studied those adjustments and you realised, to your astonishment, that the new, pretend temperature measurements told an entirely different story from the original, real temperature measurements: that where before your records showed a cooling since the 1940s they now showed a warming trend.
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The explanations he offers for the basic principles of temperature adjustments are plausible enough. They include things like the Urban Heat Island effect; weather stations which have moved locations;
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Take, for example, the Urban Heat Island effect. This is where weather stations, over time, have become surrounded by buildings or other heat sources and which therefore record hotter temperatures than they used to. You’d expect, as a result of this, that recent (ie late 20th century) raw temperature readings from urban areas would be adjusted downwards in order to make them more accurate. Rarely though, is this the case. More usually, the adjustments appear to have been made in the other direction, so that the late twentieth century readings are made hotter still – while the early twentieth century readings have been adjusted to make them look cooler.
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The explanations he offers for the basic principles of temperature adjustments are plausible enough. They include things like the Urban Heat Island effect; weather stations which have moved locations;
...
Take, for example, the Urban Heat Island effect. This is where weather stations, over time, have become surrounded by buildings or other heat sources and which therefore record hotter temperatures than they used to. You’d expect, as a result of this, that recent (ie late 20th century) raw temperature readings from urban areas would be adjusted downwards in order to make them more accurate. Rarely though, is this the case. More usually, the adjustments appear to have been made in the other direction, so that the late twentieth century readings are made hotter still – while the early twentieth century readings have been adjusted to make them look cooler.
Har bara just hört talas om denna konspirationsteori. Vad säger flashbackexperterna om den?
