What are the adverse effects of melting glaciers?
Scientists believe that the melting of ice sheets and mountain glaciers in the past century is one of the reasons for the global sea level rise 10-25 cm. Nowadays, the value of sea level rise caused by melting glaciers is increasing. If the Antarctic ice sheet collapses, the global sea level will rise by nearly 6 meters. If the two ice sheets at the north and south poles all melt, the sea level will rise by nearly 70 meters.
Melting glaciers will lead to rising sea levels, flooding large coastal areas and making people living in these areas restless. They can make up half of the world population. All coastal areas will become the sea of Wang Yang. New york can only leave the roofs of the United Nations Building and several skyscrapers, Paris may see the top of the Eiffel Tower, and dozens of low-lying countries such as the Netherlands and Britain will no longer exist.
2. Global climate change is obvious.
Glaciers, especially large polar ice sheets, can reflect a lot of sunlight, thus helping the earth where humans live to keep the temperature from rising. However, when glaciers melt, the exposed land and water surface will absorb solar heat, leading to more ice melting, and the chain reaction will inevitably accelerate the process of ground warming and contribute to climate warming. However, the icy water after the excessive melting of Arctic ice will have a cooling effect on parts of Europe and the eastern United States. The inflow of ice water into the North Atlantic may destroy the ocean circulation model there, thus affecting global climate change. Causing severe cold in winter, snowstorm, high temperature in summer, rainstorm, hurricane and flood. The frequency of extreme weather is increasing.
3. The ecological environment has been destroyed.
Melting glaciers destroyed the living environment of some animals and plants, and also threatened the living environment of human beings. It has been reported that polar bears related to the change of ice sheet are difficult to find food and lose weight; Penguins and seals in Antarctica have also changed their living habits and breeding methods because of the decrease of sea ice and the increase of temperature. Microorganisms buried in the ice sheet hundreds to tens of thousands of years ago are exposed due to the melting of glaciers, and their diffusion will have a certain impact on human health.