Why are the craters under the Antarctic ice that are expanding to the size of the city of Manhattan?

The earth is irregular spherical, as one of the eight planets of the solar system, due to the existence of life, the earth is particularly special, and different climatic environments also provide conditions for species diversity on the earth.

In the polar regions of the earth, there are a large number of glaciers here because of the long period of severe cold, and the thick ice layer even covers part of the sea surface. With the continuous improvement of human science and technology, most of the Arctic has traces of human exploration, while the Antarctic still maintains a mysterious and original appearance.

Although many countries and scientific research organizations have established scientific research stations in Antarctica, the environment in Antarctica is very harsh and the scope of human activities is limited, so only a part of the exploration can be carried out, and in most cases it is still necessary to use advanced scientific instruments for exploration.

Scientists have discovered a bizarre phenomenon in the Antarctic region through aerial monitoring, with an expanding mysterious crater beneath the ice, and this trend continues.

According to relevant research analysis, the area of this giant crater has reached 2 3 times the size of the city of Manhattan, and it will be even larger in the future over time. Although the Antarctic region is deserted, the importance of natural cycles is now recognized, and if there is a problem in Antarctica, it will soon spread to other regions, and the consequences are unimaginable.

However, scientists believe that the answer may not be as terrifying as people think, and that the crater is actually a natural phenomenon, known in academic circles as a "polynya", which often forms during the windy season.

In other words, strong winds will blow away the weak ice, revealing a small lake, and the warm sea water will flood up, so it is not easy to refreeze in a short time. However, the common "polynya" is small and difficult to reach such a scale, and the area of the "polynyma" discovered this time is still expanding, so it has attracted widespread attention from scientists.

In fact, the survival of human beings in the universe is also affected by the increase in entropy, and with the continuous increase of human activities, the speed of entropy increase is sometimes affected to a certain extent. The "polynya" may have been created in the context of global warming, and this is not uncommon in recent years, and the expanding "polynya" is the best warning to humanity.

Due to its remoteness, Antarctica could have avoided many adverse effects, but human activities have seriously threatened the ecological environment of the region. If humans don't stop in time, maybe the area of Antarctica will become smaller and smaller in the future.

It's because the climate is getting warmer and warmer, and then the ice in Antarctica is melting a lot, so there are a lot of craters, and the sea will spread, and Manhattan will be flooded.

The main reason is that the current global warming has led to the accelerated melting of Antarctic glaciers, and the interior of Antarctica is very likely to be the first to melt and crack, coupled with the active movement of the earth's crust, the degree of glacial cracking will increase.

This is because global warming has led to the continuous melting of the Antarctic ice, especially the temperature of the sea under the ice has risen faster, resulting in the rapid melting of the ice and the emergence of large craters.

Most likely just the polynya. It's just a little bigger than usual, so there's no need to worry too much.

The European Space Agency said on May 19 that a huge iceberg broke away from the Ronny Ice Shelf in the Weddell Sea in Antarctica, becoming the largest iceberg currently floating in the ocean, more than 70 times larger than Manhattan in New York City, USA. Climate change has led to an accelerated decomposition of the Antarctic ice shelf in recent years.

The new "world's best" iceberg, codenamed A76, was captured in a recent Earth observation satellite photograph. A76 is about 170 kilometers long, 25 kilometers wide, and covers an area of about 4,320 square kilometers. It is slightly larger than Mallorca in Spain (3,640 square kilometers).

Schematic diagram of the A76 iceberg (slightly larger than Mallorca, Spain).

The iceberg, which detached from the western side of the ice shelf on the Ronny Margin, was first discovered by the British Antarctic Survey and confirmed by images taken by the U.S. National Ice Center using the Sentinel-1 Earth observation satellite.

The A76 iceberg replaces the world's largest iceberg, which previously floated in the ocean, with an area of about 3,880 square kilometers, also located in the Weddell Sea.

Last November, A68a, then the world's largest iceberg, seemed to be about to collide as it floated toward a remote South Atlantic island.

South Georgia, a British overseas territory, is home to thousands of penguins and seals, and a collision could hinder their ability to gather food. However, the iceberg disintegrated before it collided.

The A68a iceberg, which is 160 kilometres long and 48 kilometres wide, is separated from the Larsen Ice Shelf in Antarctica, which is warming faster than any other region in Antarctica.

Huge blocks of ice detach from the ice shelves at the Antarctic margin.

Antarctica is made up of continents, continental edge ice, and islands that surround Antarctica. Huge blocks of ice detaching from continental edge ice shelves to form icebergs is a common natural phenomenon on the Antarctic continent. Scientists say that the ice shelf of some of Antarctica's continental margins has accelerated in recent years, which may be related to climate change.

Since the 19th century, the average Earth's surface temperature has risen by 1 degree Celsius, enough to increase the intensity of droughts, heat waves, and tropical cyclones. However, the air over Antarctica has warmed more than twice as much. Change the state.