What are the causes of melting glaciers in Antarctica, and what are the consequences of melting glac

Antarctic glacier retreat is a consequence of global warming. The reasons are: fossil fuel combustion emits large amounts of greenhouse gases; Forests are destroyed and their ability to absorb carbon dioxide is reduced; The cause of the sun's own fusion.

The increase in global carbon dioxide levels has caused the greenhouse effect, which has increased global temperatures and reduced the melting of glaciers at the poles.

The greenhouse effect (global warming, the increase in temperature leads to the reduction of glaciers, ice and snow melting).

Mainly carbon.

The Antarctic Doomsday Glacier, the mystery of the amazing rate of glacier melting has been revealed.

In 2002, glaciologists from NASA used a laser altimeter to measure the thickness of six glaciers in Antarctica. Measurements show that the glaciers are melting at twice the rate they did in the 90s, melting 250 cubic kilometers per year, 60 more than their annual snow cover. These glaciers melt into water, causing sea level to rise by 0.2 mm per year.

Experts point out that the melting of glaciers is associated with the gradual disappearance of ice shelves around the polar coasts. Rising sea water and atmospheric temperatures can directly melt the bottom of the ice shelf, making it easier for glaciers to slide towards the sea, accelerating their disappearance.

Researchers believe that the "main culprit" for the melting of ice shelves is the continued global warming. Researchers at NASA's Jet Propulsion Laboratory reported in the latest issue of Geophysical Communications that they used satellites to observe that an ice shelf in Antarctica, called Larsen B, collapsed in 2002 due to an accelerated increase in global average temperatures over the past 50 years. In addition, between 2000 and 2003, two glaciers in Antarctica melted seven times faster, and two others twice as fast.

Consequences of global warming.

1.Impact on the climate.

As temperatures rise, the incidence of floods, droughts, fires and heat waves is expected to increase in some areas.

2.Glaciers melt.

Even if glacial meltwater dries up over a period of 60 to 100 years, the scope of this ecological catastrophe will be staggering.

3.Disease is rampant.

As the climate warms, some tropical diseases will spread to colder regions. The environment at higher altitudes is also becoming more conducive to the survival of mosquitoes and the microorganisms they carry, such as Plasmodium.

4.New Ice Age.

The current extinction rate of species has been.

to the level of half of the last great extinction in geological history".

The melting of Antarctic glaciers will lead to a rise in sea levels, causing many countries and regions to suffer from flooding and even risk of inundation

1. In North America, when all the Antarctic and Antarctic glaciers melt, the entire Atlantic coast of the United States will disappear, and the Florida and Gulf Coast regions will cease to exist. The hills in San Francisco will become islands, and San Diego will be gone forever.

2. In Asia, when all the Arctic and Antarctic glaciers melt, most of China and Bangladesh will be submerged, and according to the current level of population, hundreds of millions of people will die. India's coastline will also be shortened.

3. In South America, after all the glaciers in the North and South Poles melt, the Amazon Plain and the Paraguay River basin will become bays in the Atlantic Ocean. The only areas that will not be submerged are the mountainous regions of the Caribbean coast and Central America.

Causes of melting glaciers in the Arctic and Antarctica.

The melting of Antarctic glaciers is caused by the destruction of the environment. The reason for the melting of the Antarctic glaciers is actually caused by the increase in global temperatures, which are abnormal.

Rising temperatures have a huge relationship with the release of large amounts of carbon dioxide from human activities. In fact, the temperature has risen a lot around the world in recent years, and the temperature in the North and South Poles should have been maintained at 20 degrees Celsius, but now there is an abnormal phenomenon of 20 degrees Celsius, which has caused the glaciers to melt.

The above content refers to People's Daily Online - The consequences of global glacier melting are terrible, the sea level has risen by 66 meters, and China is almost submerged.

1. Sea level rise.

The most obvious direct effect of melting glaciers is that it causes sea levels to rise, which in turn inundated much of the land that is already inhabited by humans. In 2013, National Geographic magazine published a report on melting glaciers, which pointed out that if all the ice on the earth melted, the entire Atlantic coast could be submerged, and the entire continent of Florida in the United States could be submerged by seawater. In addition to the Atlantic coast, world-famous cities such as Tokyo, New York, and Jakarta will be affected by the sea.

2. Virus spread.

Melting glaciers can also lead to the rediscovery of viruses that have been frozen for a long time. Previously, a scientific research team found an unknown virus in the thawed glaciers on the Qinghai-Tibet Plateau, and this phenomenon may also be staged in the Antarctic region, because the Antarctic continent may have lived a rich variety of creatures, their bodies were buried underground after death, and the viruses remaining in the body after being covered with ice and snow also entered a dormant state. Once the glaciers melt, these dormant viruses will have a chance to revive and enter nature and human society through air and flowing water.

3. Drinking water is reduced.

Millions of people around the world depend on glaciers for drinking water, especially in the Hindu Kush Mountains in Central Asia and the Andes Mountains in South America.

4. Endangering food**.

Rising sea levels can lead to global warming, climate changes to heat, more frequent flooding, more snowfall or higher air humidity, limiting the variety of crops, resulting in less food and less food.

5. Triggering a public health crisis.

As sea levels rise, coastal areas are prone to flooding, and flooding can wash large amounts of untreated sewage into rivers, roads and homes, polluting water sources, harming wildlife and causing the spread of infectious diseases.

What would happen if all the Antarctic and Antarctic glaciers melted? It's unimaginable!