Changes in eccentricity in the Earth s orbit around the Sun affect ice ages

It is recommended to watch the movie the day after tomorrow, and the explanation in it has some truth.

The Earth's orbit is indeed changing, but it has little effect on = the Earth's absorption of sunlight, and I think that the change of the Earth's orbit will lead to changes in the heat absorbed by the Earth's northern and southern hemispheres, which will lead to changes in the ocean currents and pressure belts distributed in the northern and southern hemispheres, which will lead to global climate change, and the stable climate zones that have been formed will be disordered, resulting in glaciation.

The main factors that formed the Ice Age:

1.The decrease in sunshine in the summer half of the year is the main reason. The variation of sunshine in the summer half year is related to the change of three parameters: eccentricity of the Earth's orbit, the angle of intersection of the ecliptic plane and the equatorial plane, and the precession.

2.The Sun's luminosity is minimal when it moves near the galactic center, cooling the planets and creating the Great Ice Age on Earth.

3.The uneven distribution of matter in the Milky Way galaxy caused the Great Ice Age on Earth to form the Great Ice Age when the Sun passed through the densely densely populated areas of interstellar matter.

4.It is directly related to the drop in temperature on the Earth's surface. The rise and fall of temperature is affected by factors such as atmospheric composition and changes in solar radiation energy, as well as various factors in the orbit of the earth and the sun.

Small-scale ice ages occur every 2-40,000 years, and large-scale ice ages occur every 100,000 years. Scientists believe that the irregularity of the Earth's orbit changes how much energy it absorbs, causing the Earth to cool suddenly. But studies have shown that irregularities in the Earth's orbit account for only 1% of the Earth's absorption of solar energy.

This may be related to the relationship between the orbit and the speed.

Kepler's law states that the closer you get to the sun, the faster the earth rotates (if it is not fast, it will slowly be sucked into the sun), and the farther it goes, the slower it turns. Therefore, when the orbit is close, the angle of incidence of the sun does not change (this is only related to the angle of yellow-red junction, that is, the angle of inclination of the earth's rotation), and the faster the rotation decreases, the less sunlight is obtained, and the total amount of heat obtained in a year decreases.

It has something to do with the angle of rotation of the Earth.

It is mainly related to the angle of the sun.

Then the whole world will be full of water!

Global warming could lead to another ice age. According to this theory, a warming atmosphere destroys the ocean currents.

The movement, in particular, of the Gulf Stream from Mexico, has led to the redistribution of warm currents from the Gulf of Mexico to Northern Europe. Because the Gulf Stream carries warm water along the coast of Great Britain and northwestern Europe, temperatures are warmer than elsewhere.

Worryingly, when global warming causes icebergs in the Arctic to melt, large amounts of fresh water will flow into the North Atlantic Ocean and slow the movement of the Gulf Stream. A study of the North Atlantic circulation found that the speed of ocean currents north of the Gulf Stream has decreased by 30 percent. A slowing Gulf Stream could lead to a significant cooling in Europe.

Extreme cold and warmth are not uncommon in the history of the planet. Over billions of years, the Earth has experienced a slow alternation of temperatures from warm to cold. Scientists aren't sure exactly why the Earth oscillates back and forth between these temperature changes, but they believe it's the result of a combination of factors, including ocean currents, changes in the Earth's orbit around the Sun, and atmospheric composition.

During these periods, weather conditions are more extreme during certain periods. We call those extremely cold spells "ice ages," when large parts of the planet are covered by huge glaciers.

The solar system revolves around the Milky Way, probably because the sun will be closer to the center of the galaxy for a while, and gravity changes the distance between the sun and the earth. So the temperature of the earth will drop a lot.

The last ice age on Earth was the Quaternary Ice Age.

Quaternary Ice Age: The climate turned cold at the end of the Tertiary period, and at the beginning of the Quaternary period, the cold climate zone migrated to the middle and low latitudes, resulting in the widespread development of ice sheets or glaciers in high latitudes and mountains. This period began about 2 million to 3 million years ago.

The timing of the next ice age is unclear, but there is some speculation.

Stephen, a researcher at the Institute for Climate Change in Potsdam, Germany. Ramstorff demonstrated through computational models that global warming would change the direction of the Gulf Current, which would lead to an ice age on the European continent. According to Ramstorff's research, rising global temperatures could eventually lead to regional ice ages in Europe.

Climatologists have even indirectly demonstrated that the thermal effect of the Gulf Warm Current has significantly diminished in the northern Atlantic Ocean, and that the climate in Europe has become increasingly volatile. Tang Maocang and other experts from the Lanzhou Institute of Plateau Atmospheric Physics of the Chinese Academy of Sciences believe that the earth is now slowly transforming from the "peaceful world" to the strong convection pattern, and then the phenomenon of strong orogenic movement and thermal energy conversion into mechanical energy will appear again, and a new ice age is likely to fall on the earth, and they also speculate that the Fifth Ice Age will come about 100 million years later according to their own models. In the face of the divergent conclusions, we can only say that the arrival of the Fifth Ice is more likely.

However, it is still difficult to determine the trend in a short period of time, which still requires further in-depth research.

In the history of the earth's climate change, there have always been ice ages and interglacial periods alternating to add or remove clothes for the earth, so when will the next ice age come? As a result of the release of large amounts of carbon dioxide into the air, the Earth has been in a state unprecedented in history, so some scientists have boldly predicted that the Ice Age may never return.

Two Belgian scientists: Berger, Aand Loutre, M

f.It was noted as early as 30 years ago that the ice age may never return. Based on the estimation that the interval between the last two interglacial periods and the ice age was 10,000 years, this time the interglacial period has lasted for nearly 10,000 years, which means that the ice age is imminent; However, from another point of view, based on the 125,000-year cycle of change in the Earth's climate caused by the change of the Earth's orbit around the Sun, this interglacial period will continue for 70,000 years.

While there is a big gap between these two estimates, there is another chilling statistic that regardless of when the ice age comes, the amount of carbon dioxide on the surface today is one-third higher than it was during the Earth's warmest interglacial period. And this value will double in two hundred years. From this point of view, the situation on the earth seems to be not good.