Why is it due to the increase in the average temperature of the earth, which causes two levels of ic

As the Earth's temperature rises, icebergs near the North and South Poles will turn into water and distribute equally among the Earth's oceans. The particles near the north and south poles are very close to the earth's axis of rotation, that is, the radius of rotation is very small, so the moment of inertia of each particle is very small. When these particles (which become water) move away from the poles, their radius of rotation increases, especially when they reach the point near the equator, where the radius of rotation is the largest, so their moment of inertia also increases.

When a large number of icebergs melt into water and flow to other regions, the moment of inertia of the earth will increase significantly.

The rotation of the earth is a fixed axis rotation, and the axis of rotation is the line between two poles. Fixed axis moment of inertia of the particle = mr 2

If it is not a particle, it should be integrated by position using the above formula. Obviously, objects at the two levels are close to the shaft, and objects in other areas are far from the shaft. When a glacier melts, it is equivalent to transferring two levels of mass to the ground.

The rest of the sphere, so that r becomes larger, so the total integral amount becomes larger, that is, the moment of inertia becomes larger.

To put it simply, it is due to the change in the mass distribution, which leads to an increase in the moment of inertia.

The Earth's inertia increases, and the rotation speed slows down according to the conservation of angular momentum.

This is also the reason why the legend says that the Spring Festival will affect the rotation of the earth.

Imagine. The north and south poles themselves are in the pivot position, then.

The glaciers on it are near the axis, and if it melts, the ice water disperses from the poles to all parts of the country, and the sea level rises at the same time.

Centrifugal force increases! If you don't understand, make a large rotating disc.

You stand in the center and on the side, respectively.

See which position can throw you out.

If you stand on the edge of the test.

The disc will also become less unstable.

The minimum temperature has been bent to more than minus 90 degrees, and such a temperature has also caused a great impact, and the temperature is not lower than before.

During the Ice Age, the temperature in Antarctica would drop by about 11 degrees Celsius compared to the current temperature, which is already very low, and if it really reaches this temperature, the earth will become very cold.

In a hundred years, the world will become an ocean, because when glaciers melt, they will turn into water, and glaciers occupy a large part of the earth, so the world will become a vast ocean.

The world is likely to be destroyed because the destruction of the environment is so severe, and the melting of glaciers will cause the biological chain to break, and then the sea level will rise.

In a hundred years, the world will become a desert, without any living things, no vegetation, no human beings, which is very scary.

In a hundred years, the earth may not be there, because now the temperature of the earth is getting higher and higher, and the sea level is rising all the time, and the earth will not be suitable for human habitation in the future.

The world will become an environment with very little land, a lot of oceans, a lot of bad weather, and a very high temperature on the earth.

Compared to the two, the new volume source is up to the reduced volume.

I'll give you an example, you take a popsicle and put it in a bowl, what is the height of the water at this time, (the popsicle is half in the water and half outside) at this time, if the popsicle is melting, you are looking at the height of the water, is it rising. The Antarctic continent is like a popsicle, mostly solid above the surface of the sea, and if the Antarctic ice sheet melts the Antarctic ice sheet, the area becomes an ocean. The actual Antarctic continent is very small.

The reason why the sea level rises is because the liquid is fluid, and it flows to the lowest place under the influence of the earth's gravity.

Increased sea water.

Sea level rise is a global phenomenon caused by global warming, melting polar glaciers, and thermal expansion of upper seawater.

Because most of the glaciers are distributed on land instead of floating on the ocean. For example, the Antarctic ice sheet is more than 2,000 meters thick, the Greenland glaciers are also huge ice sheets, and there are glaciers in high mountains such as the Himalayas.

Because the Antarctic and Arctic polar glaciers are mainly on land, and the fresh water in glaciers accounts for two-thirds of the world's freshwater resources, think about multiplying all the fresh water on land by two and flowing into the ocean.

Originally, a large part of the ice surface of icebergs on land or at sea at the poles was above sea level or on land, but now the ice on the sea level or land will melt into water and flow into the sea, and the sea level will naturally rise.

The iceberg is on the horizontal plane, you have to think that the volume of ice melting into water will increase, but how much higher is the iceberg than the horizontal plane! Aren't the volume of these icebergs worth the volume of ice melting into water?

There are two main factors contributing to sea level rise.

Although it can be shown that when a block of ice is added to pure water, the height of the water surface does not change when the ice melts, but this is based on the fact that the density of the water does not change. Because there is salt dissolved in seawater, melting ice dilutes it, causing it to become less dense, so the sea level rises. Secondly, due to the principle of thermal expansion and cold contraction, climate warming causes the temperature of sea water to rise, and thus the volume will expand, which also leads to the rise of sea level.

Some icebergs are slopes covered with snow and ice. The snow melts and the water increases. It went up the hillside.

The global storage of solid water is very abundant. In addition to the North and South poles, there are also alpine glaciers. With the exception of Arctic glaciers, all other solid water is stored on land.

As temperatures rise, land glaciers will melt and large amounts of water will flow into the oceans, eventually leading to sea level rise.

Icebergs are on land, and when the ice melts into water and flows into the sea, the sea level naturally rises.

Scientists believe that the melting of ice sheets and mountain glaciers over the past century is one of the reasons for the 10-25 cm rise in global sea levels. Nowadays, the number of rising sea levels due to melting glaciers is increasing. If the Antarctic ice sheet were to disintegrate, it would cause global sea levels to rise by nearly 6 metres.

If both the two major ice sheets in the North and South Poles were to melt, the result would be a rise in sea levels of nearly 70 metres. The rise in sea levels caused by the melting of glaciers will inundate large areas along the coast, making it uneasy for the inhabitants who live in these areas, which account for half of the world's population, and all coastal areas will become a vast ocean, with only the rooftops of the United Nations Building and a few skyscrapers left in New York, France, and the Eiffel Tower in Paris, France, and dozens of low-lying countries such as the Netherlands and the United Kingdom will cease to exist. China's coastline is more than 6,000 kilometers long, and there are hundreds of large and medium-sized cities along the coast, all of which are densely populated.

Cities such as Dalian, Tianjin, Qingdao, Shanghai, Hangzhou, Xiamen, Guangzhou, Hong Kong, Macau and Shenzhen are all within 20 meters above sea level. It is Beijing, Nanjing, and Wuhan, which seem to be a certain distance from the ocean, but the altitude is melted by mountain glaciers and polar ice caps"Water flooding"of the list. What's more, in addition to the mainland, there are more than 5,000 islands in Hainan, Zhoushan, Taiwan and other large and small islands.

At the 2015 Paris climate conference, countries around the world have pledged to strive to limit global warming to 2 degrees Celsius, but six years later, this goal is difficult to achieve as it stands, unless human beings can find energy sources that can completely replace fossil pigments such as oil and coal, global warming is inevitable.

If the average annual temperature of the earth rises by 3 degrees Celsius, the most direct manifestation may not be the melting of glaciers in the Arctic and Antarctic, but the most intuitive extreme weather such as floods, frost disasters, and droughts. Note that this refers to the global "average temperature", not the local temperature of the planet. According to the data released by the World Meteorological Organization, the current average temperature of the earth is already 1 degree Celsius higher than 200 years ago, and if the current situation continues, the average temperature of the earth may rise by 2 degrees Celsius in the next 50 years and 3 degrees Celsius in 80 years (based on 1800).

A number of meteorological scientists have warned that human beings must keep the annual average global temperature increase within 2 degrees Celsius, otherwise it will bring catastrophic effects that will last for a long time, including but not limited to large-scale floods, severe droughts, marine ecological crises, and mass extinctions of marine life. In fact, the increasing frequency of extreme weather events around the world in the past two years can be regarded as a precursor to the long-term crisis of climate warming.

In Eurasia, for example, extreme cold weather in winter can be a direct effect of global warming, because warming will first cause the polar jet stream, the boundary between the cold air of the Arctic and the warm current of the equator, to move southward, bringing colder cold spells to the mid-latitudes. Everyone who cares about climate change should remember the 2008 frost disaster in southern China, when there was rare snowfall in many provinces south of the Yangtze River, and the temperature plummeted and caused large-scale power outages and traffic accidents.

It will bring a lot of inconvenience to people, will cause some very serious disasters on the earth, will cause El Niño phenomenon on the earth, will also affect people's daily life, will also affect people's life safety, if the situation is very serious, there may be a snowstorm.

There will be the consequences of tsunamis, volcanic eruptions, **, heavy rainstorms and heavy snowstorms.

Melting glaciers, rising sea levels, submerged cities, and reduced land will seriously affect human life, so because of rising temperatures, global warming, or exacerbated environmental pollution, human survival is very worrying.

If the earth's temperature rises again3, it will bring many serious impacts, temperature rise can lead to the melting of snow-capped mountains, glaciers, rivers and lakes water flow increases, may lead to floods, and then, temperature rise can also lead to global room temperature, bringing serious effects on people's lives, and temperature rise can also lead to damage in the ecological environment, directly affecting people's living environment.

It can cause a tsunami, which can cause **, cause mudslides, raise sea levels and make the air warmer.

I think everyone should know that when the earth starts to warm up, the icebergs at the poles will melt, but when the icebergs melt, it will bring us a lot of problems, which not only represents global warming, but also causes other problems.

Global warming is actually something that no one wants to see, because it means that the whole planet will face some difficulties, such as the degradation of species, and some crops, they cannot grow without a suitable environment. Even for human beings, the earth is warming at the poles, and the melting of icebergs will lead to a warming of the climate, so at this time, the temperature that our human body feels is getting higher and higher. Nowadays, many places are relatively hot in summer, and even some people have no way to withstand such high temperatures, and some people will faint in the case of high temperatures, in fact, this is also some of the harm brought to us by the melting of icebergs.

In addition to the overall climate warming, there are also some bacteria and viruses that are frozen in the iceberg, and they may also be released, and I think you should have seen the news that the melting of the iceberg has released some viruses that we have not been exposed to, and if these viruses spread, we have no way of imagining what kind of disaster it will bring. And now it's only a part, if the whole iceberg is melted, we can't withstand the damage caused by the iceberg.

When the iceberg melts, there are actually many creatures that they don't have an environment to live in, such as polar bears and penguins, they actually need to live in some colder places. However, if the earth warms up and the icebergs at the poles melt, they will not have a suitable living environment at all, which may lead to the entire ecological imbalance. It is very likely that the whole world will be gone when the earth warms up, and the perception of the day or winter is not so cold, and there are many creatures that need to hibernate, but if the earth heats up, they may not need to hibernate, so this is also a very big problem for the ecology.

The melting of glaciers will cause the sea level to rise higher and higher, which will affect the biological chain, the ecological balance, and the normal life of human beings.

First, it will cause sea levels to rise, and some land will be submerged; second, the increase in temperature, which leads to the occurrence of some diseases; Third, some viruses buried under the iceberg can emerge.

The problem is that the sea level is rising, the land is submerged, the coastal cities are submerged, the water level along the coast is rising, there is a lot of property damage, and it will also cause all the people to move to the interior of the continent.

It can lead to natural disasters, cause some places to be flooded, cause some diseases, there will be some natural phenomena, it will affect plants, it will affect animals.

Global warming will lead to melting icebergs and rising sea levels, leading to a reduction in coastal land areas and an increase in drought in some areas.

1. Global warming may cause sea level rise.

When the climate warms, warming causes the melting of icebergs at the north and south poles of the Earth: the total melting of ice on Greenland could cause a global sea level rise of 6.7 metres, and the total melting of ice on the Antarctic continent could cause a global sea level rise of about 60 metres.

The impact of sea level rise can be estimated based on local elevations: the global land area is decreasing, and some low-altitude areas will be below the sea level, such as the Maldives, which will be more than 60 metres below the sea surface.

2. In the process of warming, the earth will face more extreme weather and extreme climate events. For example, persistent drought, peak heat waves, extreme rainstorms and floods, coastal areas affected by super typhoons, extremely violent storm surge disasters, etc.

3. Due to the impact of extreme weather events, secondary disasters such as lack of drinking water, reduced grain production, and epidemic diseases have increased.

4. Some oases may disappear due to climate change.

5. Animals and plants in nature, especially plant communities, may be unable to adapt to the rate of global warming and make adaptive transfers, thus suffering misfortune. Past climate changes (e.g., ice ages) have caused the disappearance of many species, and future climates will cause some species to disappear in some areas, while human species will benefit from warming, with increased habitat and fewer competitors and predators.

For example, in the 70s of the 20th century, its northernmost boundary line was on the Yellow Mountain, and Xuancheng City also tried to plant it, but in winter, the trees froze to death. For example, the alligator only lives in a narrow area such as Xuancheng, Jingxian and Nanling, and if the northern boundary is shifted north, the alligator may become extinct naturally.

6. Changes in climate can lead to major changes in the spatial (latitudinal) distribution of biozones and biomes. For example, the average temperature in the North Atlantic region in 800-1200 AD was 1 higher than it is now, making it possible to grow corn in Norway, but by 1500-1800 AD, there was a Xiaoice period in Western Europe, and the average temperature was only 1-2 lower than now, causing half of Norway's farms to abandon farming, and Iceland's agricultural activities almost completely stopped.