IPCC AR5 Admits They Have No Clue What Caused the 15 Year Pause in Warming
From the leaked AR5 Summary:
“The observed reduction in warming trend over the period 1998–2012 as compared to the period 1951–1 2012, is due in roughly equal measure to a cooling contribution from internal variability and a reduced trend in radiative forcing (medium confidence). The reduced trend in radiative forcing is primarily due to volcanic eruptions and the downward phase of the current solar cycle. However, there is low confidence in quantifying the role of changes in radiative forcing in causing this reduced warming trend. {Box 9.2; 10.3.1; Box 10.2}”
Translation: It was the sun. Or super secret volcanoes. Or something.
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