Home Science Yellowstone volcano: Geologist estimates 'five billion' death toll if Yellowstone blows

Yellowstone volcano: Geologist estimates 'five billion' death toll if Yellowstone blows

“And as a result of the massive emissions of dust, gases or sulphur dioxide into the atmosphere, there would be a temporary cooling of the climate.”

According to the US Geological Survey (USGS), it is probable another caldera-forming blast could alter global weather patterns.

Even smaller volcanoes, such as Mt Pinatubo in the Philippines, have shown some ability to alter the weather.

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When the volcano erupted in 1991, sulphur dioxide emissions from the blast caused the planet’s surface to slightly cool for about three years.

The USGS said: “At the height of the impact, global temperatures dropped by 1.3F (0.7C).”

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