Burke et al. 2023, High sensitivity of summer temperatures to stratospheric sulfur loading from volcanoes in the Northern Hemisphere, PNAS 120 (sulfur isotopes across the 536, 1453, 1458 and 1600 eruptions)
How it connects
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Sulfur isotopes: the 1453 volcano was outside the tropics, near or upwind of Greenland
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Pinatubo's Buag eruption made the 1453 sulfate signal