Clouded Thoughts In 1831, a volcanic eruption flooded the skies with so much sulfur gas that it cooled the planet by nearly two degrees Fahrenheit, causing all kinds of famine, devastation, and social upheaval. So gloomy were its effects that, in the northern hemisphere, it even sullied the beaming visage of the Sun and turned it blue. In other mood swings, reports from the period say that the Sun also appeared purple and green. But in the nearly two hundred years since, the volcano that blew its top has remained a mystery — until now. As detailed in a new […]