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Jippy's avatar

Large equatorial eruptions that carry ash into the medium to higher altitudes are what cause cooling. The hadley cells spread the ash across the equatorial region as their currents gather the ash at lower altitudes and distribute it at the higher altitudes. Conversely, the direction of circulation of mid latitude currents tend to keep the ash located at their respective latitudes.

Equatorial eruptions tend to spread the ash across an area where the sun creates the most heat, resulting in more significant cooling.

Mid latitude eruptions tend to keep the ash localized across an area of less solar heating. The mid latitude regions don't get as much heat from the sun, meaning less cooling.

This is what happened in the 1800s with the year without a summer. That volcano is right on the equator.

Has an eruption recently happened at the equatorial region? Hmmmm.

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Joy's avatar

Look up iceagefarmer.com he's been talking about this for years. We're currently in a Grand Solar Minimum, a mini ice age.

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