Why Toba Matters
Ice ages begin (and end) because of variations in the Earth's alignment with the sun. But when a planet-wide cooling is already under way, a massive volcanic eruption like Toba's can quicken the chill, Shindell believes.
Ice ages begin (and end) because of variations in the Earth's alignment with the sun. But when a planet-wide cooling is already under way, a massive volcanic eruption like Toba's can quicken the chill, Shindell believes.