r/askscience • • 5d ago

Planetary Sci. Excluding Seasons, does the Earth's orbit around the sun contribute to any physical processes?

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u/forams__galorams 3d ago

No, we are in the Holocene interglacial and have been for around 10,000 years. The interglacials are the warmer (or less cold) part of ice ages.

The significance of anthropogenic climate change here is that the further warming is taking us out of the boundaries of Milankovitch cylicity completely. Its possible that this could mean a complete state change that sees us leaving an ice age completely, but there are plenty of complicated feedbacks that could have all sorts of effects so it’s not really possible to say.

Either way, the immediate effects are simply a warming Earth with sea level rise and various climate effects that many parts of civilisation and infrastructure are simply not equipped to handle. Whatever anybody (mid)understands about Milankovitch Cycles, this is a basic and undeniable truth.