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Geoscience (also called Earth Science) is the study of Earth. Geoscience includes so much more than rocks and volcanoes, it studies the processes that form and shape Earth's surface, the natural resources we use, and how water and ecosystems are interconnected. Geoscience uses tools and techniques from other science fields as well, such as chemistry, physics, biology, and math! Read more...
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Climate
Is that an alternative explanation to the "inner core stopped moving and may reverse" theory? Wasn't that also in a 7, 8 year cycle?
To me (total idiot layman) this could make much more sense. What power could possibly make a 2400 km diameter metal ball change spin direction every few years?
But a wobble, yeah. Like a spinning top toy that lost a little speed and isn't perfectly upright anymore.
Always fascinating that even in scientific terms something is best described as a wobble.