With the development of science and technology, people's living standards have improved, and the earth's environment has begun to deteriorate. Excessive carbon dioxide emissions create a greenhouse effect. The greenhouse effect causes global warming, causing sea levels to rise due to melting glaciers in the Arctic and Antarctic.
According to data released by the United Nations, from 2010 to 2019 is the period when human carbon emissions are the highest If we do not control it, global temperatures will rise by about 2 °C and sea levels by 30-50 centimeters by about 2050. By 2100, sea levels would rise by 2 meters, and many port cities would cease to exist, including some in Japan.
Japan is an island nation with an extremely long coastline, which is both its strength and weakness. The narrow coastline allows Japan to have many ports, which is conducive to Japan's international trade; however, the narrow coastline will also make Japan lose part of its territory in the face of the greenhouse effect. According to the global sea level rise simulation map, most of Japan's territory is within the 1 km submerged line.
At this time, one might wonder if a 2-meter increase in sea level would affect the habitation of Japanese nationals.
In fact, no, the rise in sea level will affect the size of Japan's land area and will not affect the japanese people's residence. What threatens that the Japanese people cannot live in this country is another factor – japan's own geographical location.
There are six major plates on Earth, the American Plate, the Eurasian Plate, the Indian Ocean Plate, the Pacific Plate, the African Plate, and the Antarctic Plate.
Some plates are constantly moving, so the geology at the junction of the plates is more active, resulting in earthquakes, volcanic eruptions, tsunamis and so on.
Japan is located at the junction of the Eurasian Plate and the Pacific Plate, Japan will often have earthquakes, volcanic eruptions, tsunamis and other disasters, and then Japan's land area is relatively flat, once the outbreak of more serious disasters may affect most of Japan.
According to incomplete statistics, from 1994 to 2003, in the 9 years, Japan experienced an earthquake on average every four days, which shows that Japan's geological activity is extremely frequent. Such frequent geological activity is likely to revive Mt. Fuji. Once Mount Fuji awakens, it will erupt with energy accumulated for more than 300 years, flooding Tokyo in 2 hours, and 12 cities around Tokyo will be affected by magma waves; within 7 days, most of Japan will be covered with volcanic ash; within 15 days, the whole territory of Japan will be covered with volcanic ash. Although the eruption of Mount Fuji will not sink the island of Japan, it will make Japan an uninhabitable island.
Japan is a country with a strong sense of crisis, so in the 18th century, Japan sent a large number of people to foreign countries, in order to continue to pass on the fire of Japan in the event of a sudden disaster in Japan.
In modern times, in order to cope with possible crises, Japan has taken many measures, including overseas land purchases.
It is reported that the land area purchased by Japan in Brazil has exceeded the land area of Japan. So why did the Japanese buy so much land in Brazil?
First, Brazil has a land area of 8.5 million square kilometers, but only 210 million people, a vast land area coupled with a sparse number of personnel, if Japan needs to large population migration when the disaster needs to be large, Brazil can also withstand.
The second is historical reasons, as we mentioned above, in the 18th century, a large number of people in Japan went to Brazil, where there were many descendants of Japanese people, so that the Japanese people had a sense of home. Coupled with the fact that Brazil is a developing country, many Japanese people invest in factories here, they regard this place as their second home, and they are more willing to move here in the face of crisis.
As can be seen above, Japan is affected by the greenhouse effect and the country's geographical location, which forces it to purchase land assets overseas. The problems facing Japan now inspire us to protect the ecology and protect the earth, otherwise people are likely to cocoon themselves in the end.
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