What does it mean if the earth's axial tilt is decreasing? How will this decrease affect weather, seasons, etc. on earth?

Question

What does it mean if the earth's axial tilt is decreasing?  How will this decrease affect weather, seasons, etc. on earth?

John Alexander · Accepted Answer

A decreasing axial tilt means that the tropic of cancer and capricorn are moving closer to the equator and the arctic and antarctic circle are moving closer to the poles.

The axial tilt of the earth, also called obliquity, is decreasing and currently stands at 23.44 degrees. Its period is approximately 41,000 years, and it oscillates between about 22.1 degrees and 24.5 degrees. A decreasing axial tilt indicates that the polar regions are getting smaller as the topics of Cancer and Capricorn move closer to the equator and the tropical zone shrinks. Similarly, the arctic and antarctic circles move closer to the poles. Summers will be slightly colder and winters will be slightly warmer at latitudes between the polar and tropical zones because summer days will get slightly shorter.

Levi Anderson · Answer

undefined If Earth's axial tilt were decreasing, it would lead to milder seasonal variations. This would result in less extreme weather patterns and potentially more stable climates over time. However, the actual effects would depend on the rate and extent of the decrease, as well as other factors such as atmospheric composition and ocean currents. Overall, a decrease in Earth's axial tilt could lead to more uniform climates across different latitudes.