What is the mystery of Greenland's extinction?

1909 On the morning of April 6th, US Navy officer Robert Piary, with a black attendant and four Eskimos, finally became the first man to stand at the pole of the earth after six days' trek.

The next day, the six of them changed the direction of the sleigh and headed for the boat moored between Iceland and Cape Columbia in Erz. They will land this time. The climate in the polar regions is extremely harsh. If they move slowly, extreme winds will destroy the ice sheet and turn it into a world of floating ice and drifting ice. After the ice sheet is destroyed, the ice will slowly flow to the North Atlantic, and the drifting ice drifting eastward will immediately accelerate its flow. When they flow to the warm waters of the North Atlantic, the hard ice will completely begin to dissolve.

16 days later, Piali and his companions left the North Pole and arrived safely at Cape Columbia. Man's challenge to nature has finally succeeded again.

The successful exploration of the Arctic has solved many mysteries about the Arctic. The North Pole, for example, is surrounded by icy ice sheets, and there is no land. The North Pole stands on the solid ice in the middle of the Arctic Ocean. Piary, an American explorer, also discovered many islands near the Arctic Ocean, as well as new landforms in northern regions such as Europe, North America and Asia.

Piali began his exploration on the ice sheet in the coldest season. At this time, although the sky is dark, because the ice has solidified, the progress will not be hindered. In addition, if you want to go north in the season when the Arctic Sea is covered with ice floes, it is difficult to calculate the flow direction and velocity of the ice, and it is also difficult to ensure the food you need when you come back along the way. Because when returning to land, it is difficult to determine whether the food originally stored on the ice is still in its original place. Apart from natural factors, foxes and polar bears are likely to eat food.

The first European to explore the North Pole was the Greek mathematician and explorer Pythias. In 325 BC, Pythias set out across England for the Arctic Ocean, looking for a place called Teruri, and then entered the Arctic region. It is said that the place of URI was told by Celts living in the south of England.

Pythias' exploration revealed some secrets of the Arctic, such as that it is always day and no night from May to July. However, the story about Pythias' adventure has never been believed, because Europeans at that time, especially the Romans, thought that the Arctic was covered with ice and it was impossible to use ships.

Hundreds of years later, about 300 years later, Europeans explored the Arctic Ocean again. At that time, the explorers were Christian monks in Ireland.

In 770 AD, monks followed migratory birds in a ship with no deck and round bottom, and finally arrived in Iceland. 100 years later, the ancient Norwegians, that is, the pirates of northern Europe, became the first people to settle in Iceland. They are Scandinavian pirates and are now the ancestors of Sweden, Norway and Denmark.

In 900 AD, an ancient Norwegian named Tong Beilun was blown off the channel by strong winds during his voyage to Iceland. After drifting in the dangerous Arctic Ocean for a few days, he finally found land, which is the new coast of Greenland, a rocky land completely covered with ice. After the storm, Abeleen brought the report of discovering the new continent back to Iceland.

The Norwegian experience quickly aroused the curiosity of the vikings. After they got Iceland, they were more eager to find other colonies. However, the voyage to Greenland was too dangerous, and the flowing water and dense fog described by Belem discouraged them. In this way, 80 years later, several Norwegians tried to follow Belem's route to Greenland.

The voyage was commanded by the famous Viking captain "Alex the Red Hair". He sailed along the east coast of the island discovered by Belem, surrounded by icebergs and in dangerous waters, bypassed the southern end of the island and landed at the entrance of Alex Bay, which is called the nearby coast today.

They stop here, and there are rocky islands everywhere, where seabirds nest. All the coasts are deep fjords (which can be seen in the glacier area, so the coast can go deep into the land), and there are many seals and whales moving there. The scene is exactly like Iceland.

From shallow bay to inland, Eric found pine and willow scattered on the grassland, which is warm in summer and suitable for plant growth. There are many pastures here, and Eric and his companions have also found a suitable fishing spot along the coast. In this fish farm, there are countless seals and sea donkeys. You don't have to worry about clothes when you live here.

Only since then, the climate in Greenland has gradually cooled down, and most of the largest islands are covered with snow and ice. However, explorers and scientists have found that in summer, more than 90% of the ice and snow on the Arctic islands outside Greenland will melt and disappear, and many plants on the North American coast, northern Siberia, Norway, Sweden and northern Finland will bloom.

In the Arctic in winter, most areas can't see the sun, but in summer, even at night, the sun won't set. This phenomenon begins around June 22 every year, and the farther north, the longer the day. For example, in northern Norway, there is no night from May to July. In addition, many animals discovered by Eric in Greenland in 982 AD can still be seen in the north today, among which reindeer are the most. In summer, they run to pasture in droves to eat grass.

In addition, bears, foxes, rabbits, squirrels and other animals with thick fur in the Arctic are often the source of clothing for Arctic residents. Seals, sea donkeys and whales live in the Arctic Ocean all the year round, especially when the spawning season of Arctic trout comes, there are trout everywhere, which often blocks rivers.

Salmon and fin whales are abundant along the coast of North America and Siberia, so anyone who is familiar with hunting and fishing can get enough necessities in the Arctic.

In the summer of 985, about 500 Icelanders came to Greenland, which was discovered and named by Eric. Most of them are scattered in shallow bays on the south coast with mild climate.

After the news that Icelanders settled in Greenland came, many people who moved to Iceland and Norway also took ships without decks and risked their lives to sail for Greenland. When these pioneers reached the polar regions, they began to build houses with stones and peat. In summer, they make a living by farming, and in winter, they fish and hunt and live a self-sufficient life.

According to Scott's records, immigrants from Greenland soon began to trade with Eskimos. They exchanged corn and iron imported from Norway for the teeth of Eskimo sea donkeys and the fur of bears and seals.

1 100, Catholic priests came to Greenland and spread Catholicism to a new land. At the same time, Norwegian pirates began to pay taxes to the Crusaders who opened the door to Holland.

126 1 year, Greenlanders voted to belong to Norway as a crown colony. At this time, Greenland has begun to decline from prosperity, because the mild climate in the past has changed and it is impossible to continue to operate agriculture. After the temperature drops, the area covered by ice and snow becomes wider and wider. At this time, Norway itself was unable to send ships to Greenland because of the economic recession.

At that time, the iron tools and salt used by Greenlanders and all other necessities were supplied by Norway, but after the middle of the14th century, Norwegian ships were never seen again.

According to the data of archaeologists, the Norwegian colony in Greenland died in the15th century, and the bodies found left traces of injuries, which indicated that the islanders may have fought with the Eskimos because of the change of their economic status and the lack of food, but there was no record at that time, so that future generations had no clue about the fate of these pioneers. So far, the story of Greenlandic death has not been made public.