1) Variations in radiation produced by the sun
2) Volcanic eruptions release dust into the atmosphere which can have the effect of reflecting radiation from the sun. they can,however also release carbon dioxide and end glacial periods.
3) Changes in the concentration of carbon dioxide.
4) Movement of tectonic plates into warmer or colder latitudes.
5) Changes in ocean currents for example the gulf stream.
6) Milankovitch cycles-changes in the Earth's orbit + the tilt and wobble of the Earth's axis.
2) Volcanic eruptions release dust into the atmosphere which can have the effect of reflecting radiation from the sun. they can,however also release carbon dioxide and end glacial periods.
3) Changes in the concentration of carbon dioxide.
4) Movement of tectonic plates into warmer or colder latitudes.
5) Changes in ocean currents for example the gulf stream.
6) Milankovitch cycles-changes in the Earth's orbit + the tilt and wobble of the Earth's axis.
natural_causes_for_the_shifts_from_glacial_to_interglacial_periods.doc | |
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