Question

Which natural phenomena will over the next 13,000 years gradually cause the northern hemisphere to experience summer during today’s current winter?
Question 30 options:

solar activity

Earth’s orbit

Earth’s tilt

Earth’s wobble

Answer 1

Earth’s wobble

The earth wobbles about its axis which is currently tilted at an angle of 24.5 degrees (even this tilt changes, over 41,000 years cycle, between 22.1° and 24.5°). This is referred to as axial precession in Milankovitch cycles that endeavor to explain a collective effect of astronomical phenomenons of earth in space that have an effect on earth's climate

Explanation:

The earth wobbles about its axis which is currently tilted at an angle of 24.5 degrees (even this tilt changes over 41,000 years cycle between 22.1° and 24.5°). This means over a cycle of 13,000 years the north pole will be tilted towards the sun at perihelion (when the plant is closest to the sun) and over the next cycle, the south pole will be tilted towards the sun at perihelion.

This cycle changes the rate and intensity of irradiation from the sun in either of the poles over the cycle. This consequently has an effect on the climate of the poles that changes with this astronomical phenomenon.

Learn More:

For more on Milankovitch cycles check out;

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