Global warming is becoming increasingly serious and sea levels are gradually rising. Where will coastal countries go?

We must first understand the causes of sea level rise: sea level rise is a global sea level rise caused by global climate warming, melting of polar glaciers, thermal expansion of upper seawater and other reasons. Research shows that global sea levels have risen by 10 to 20 centimeters in the past century, and will rise faster in the future. However, the actual sea level changes in a certain area of ??the world are also affected by the vertical movement of local land - slow crustal ups and downs and local land subsidence. The sum of global sea level rise plus local land ups and downs is the relative sea level change in the region. .

There are many factors leading to sea level rise: thermal expansion of the ocean, melting of mountain glaciers, Greenland ice and Antarctic ice sheets, etc. Most of the world's mountain glaciers have been shrinking in the past century. For example, although the Tibetan Plateau did not necessarily have a unified and boundless ice cap like the Antarctic continent today during the glacial period, one thing is certain, that is, the mountain glaciers that once existed here have gradually melted over the long years. ,disappear.

Global warming causes the melting of glaciers to be the main cause of sea level rise. However, according to a study from the National Atmospheric Research Institute of the United States on July 10, 2012, assuming that global greenhouse gas emissions are stable, global temperatures will not rise. If it continues to grow, sea levels will still rise for hundreds of years.

In addition to relocation, the following methods can also be used to solve the problem:

1. Build protective projects in coastal areas to prevent seawater intrusion, such as sea walls.

2. Reasonably guide immigrants to move inland and reduce ecological pressure on the coast.

3. Energy saving and emission reduction, reducing energy consumption and reducing carbon dioxide emissions.

4. Develop new energy, rationally adjust the energy structure, and solve the refugee problem caused by rising sea levels from a long-term perspective.

5. Plant trees and grass to reduce the amount of carbon dioxide in the air.

6. Vigorously develop a low-carbon and environmentally friendly economy and achieve sustainable economic development.