Scientists:  »The Next Milankovitch Cycle Happens Soon, You Have to Prepare »


0

The Next Milankovitch Cycle Happens Soon You Have to Prepare

Milankovitch cycles describe the collective effects of changes in the Earth’s movements on its climate over thousands of years. The term was coined and named after the Serbian geophysicist and astronomer Milutin Milanković.

In the 1920s, he hypothesized that variations in eccentricityaxial tilt, and precession combined to result in cyclical variations in the intra-annual and latitudinal distribution of solar radiation at the Earth’s surface, and that this orbital forcing strongly influenced the Earth’s climatic patterns ( From Wikipedia, the free encyclopedia )

Think about how each part of the planet gets more or less sunlight at different times of the year because of this tilt. This tilting determines if a region will have warm or cold weather, resulting in different seasons. Around March twenty-first and September twenty-first, the sun lines up directly with the equator.


When this happens, we get almost equal amounts of daylight and nighttime all around the world. These days mark the start of spring in the Northern Hemisphere and autumn in the Southern Hemisphere, and the opposite happens in the other half of the year. Yet, as we approach these balanced days, scientists have discovered a shift in Earth’s rotation that could disrupt our seasons and climate.

Now, consider what happens on June twenty-first. The Northern Hemisphere tilts toward the sun, leading to the longest day and the shortest night of the year—this is the summer solstice. During this time, sunlight is most direct, bringing the heat of summer. On the other hand, December twenty-first marks the winter solstice when the Northern Hemisphere tilts away from the sun, creating the shortest day and the longest night, bringing the cold of winter. The Southern Hemisphere goes through the exact opposite during these solstices.






Like it? Share with your friends!

0
WEB EDUCATION