Hundreds of engraved sun stones were discovered in ceremonial sites, indicating a ritual response to climate catastrophe.
In the year 536 CE, a series of volcanic eruptions in the Northern Hemisphere unleashed ash and sulfur gases into the atmosphere, enshrouding the globe in a veil that blocked sunlight.
The eruption led to a global temperature drop of about 1°C, causing famines and crop failures, especially in Asia.
The flare could supercharge auroras on Earth, providing a spectacular display for New Year celebrations.
In 1980, the eruption of Mount St. Helens devastated local ecosystems, covering 22,000 square miles with 540 million tons of ash and turning the landscape barren.
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