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A Brief History of Climate Change by City-Tech Blogger Benny Lui

Global warming may cause sea level rise. After warming, warming will cause melting of icebergs on the north and south poles of the Earth: All melting ice on Greenland can cause global sea levels to rise by 6 to 7 meters. The melting of ice on Antarctica can cause a global sea level rise of about 60 meters. According to the altitude of each place, the impact of sea level rise can be estimated: the global land area will be reduced, and some low-altitude areas will be located on the sea surface. For example, the Maldives will be located in the sea more than 60 meters deep. Changes in climate can lead to major changes in the spatial (latitude) distribution of biota and biomes. For example, during the 800-1200 AD, the average temperature in the North Atlantic was 1°C higher than it is today, making it possible to grow maize in Norway. However, by 1500-1800 AD, there was a small ice age in Western Europe, and the average temperature was only 1-2°C lower than it is now. As a result, half of Norway’s farms were abandoned and almost all of Iceland’s agricultural cultivation activities ceased. Animals and plants in the natural world, especially plant communities, may have been adapted to transfer due to their inability to adapt to the speed of global warming. This has caused misfortunes. Past climate change (such as glacial periods) has caused many species to disappear, and the future climate will make some regions Some species disappear however, some species benefit from climate warming and the changes such as their habitat may increase, and their competitors and natural enemies may also be reduced. For example, orange, in the past 1970s in China, its northern boundary line was in Huangshan.


On the front line, Xuancheng City has also tried to plant, but in the winter when there is heavy snow, the trees are frozen to death. For example, the alligator only lives in narrow areas such as Xuancheng, Jixian and Nanling. If the northern boundary line moves north, the Chinese alligator may become extinct naturally.

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