How does the milankovitch cycle work?

The Earth's orbit around the sun comprises 3 elements:tilt of the Earth's axis, its eccenticity ( or elliptical orbit) and precession -- that is the tottering or wobbling of the axis.

Milankovith Theory says that these 3 cycles alter the amunt of solar radiation on earth and in turn influence the climate over a period of time.

So opponents of Global Warming caused by human actions say, it is actually due to the natural causes due to the non-deal nature of Earth's orbit around te sun and repeats cyclically over a few thousand years and is natural , unpreventable.

The Milankovitch cycle describes variations in the Earth's orbit, axial tilt, and precession. These variations have an impact on the distribution and amount of solar radiation, which has a long-term effect on climate patterns.

The Milankovitch cycle refers to variations in the Earth's orbit and axial tilt that occur over long periods of time. There are three main components of the Milankovitch cycle: eccentricity, obliquity, and precession.

1. Eccentricity: This component refers to changes in the shape of the Earth's orbit around the Sun from nearly circular to more elliptical and back again over a cycle of about 100,000 years.

2. Obliquity: Obliquity refers to changes in the tilt of the Earth's axis relative to its orbit around the Sun. This tilt varies between approximately 22.1 and 24.5 degrees over a cycle of about 41,000 years.

3. Precession: Precession involves changes in the orientation of the Earth's axis of rotation, causing the direction of the axis to slowly trace out a circle over a cycle of about 26,000 years.

These variations in the Earth's orbit and axial tilt affect the distribution and intensity of solar radiation reaching different parts of the Earth's surface over time. Changes in solar radiation can influence climate by affecting the amount of sunlight received by different regions and the distribution of heat around the globe. For example, when the Earth's orbit is more elliptical and its axis tilt is greater, there may be periods of greater seasonal contrast and more extreme climates. Conversely, when the Earth's orbit is more circular and its axis tilt is smaller, climates may be more moderate.

The combined effects of eccentricity, obliquity, and precession contribute to long-term climate cycles known as glacial and interglacial periods. These cycles have played a significant role in shaping Earth's climate over geological time scales, influencing the growth and retreat of ice sheets and glaciers and impacting global sea levels.