How climate change affects the world

1. Global warming may cause sea levels to rise

After climate warming, rising temperatures will cause the icebergs in the north and south poles of the earth to melt: all the ice in Greenland will cause global warming. The sea level will rise by 6 to 7 meters. All the ice on the Antarctic continent will melt, which will cause the global sea level to rise by about 60 meters.

The impact of sea level rise can be estimated based on the altitude of various places: the global land area decreases, and some low-altitude areas will be located below the sea surface. For example, the Maldives will be located under the sea surface at a depth of more than 60 meters.

2. In the process of warming, the earth will face more extreme weather and extreme climate events. Such as persistent drought, peak heat waves, extreme rainstorms and floods, coastal areas affected by super typhoons, extremely violent storm surge disasters, etc.

3. Due to the impact of extreme climate events, secondary disasters such as lack of drinking water, reduced food production, and epidemic diseases have increased.

4. Affected by climate change, some oases may disappear.

5. Animals and plants in nature, especially plant communities, may be unable to adapt to the speed of global warming and make adaptive shifts, thus suffering misfortune. Previous climate changes (such as ice ages) have caused many species to Disappearance. The future climate will cause certain species to disappear in some areas. However, some human species will benefit from climate warming. Their habitats may increase, and their competitors and natural enemies may also decrease. Take oranges, for example. In the 1970s, their northernmost boundary was along the Huangshan Mountains. Xuancheng City also tried to grow them, but when there was a heavy snowfall in winter, the trees froze to death. For example, alligators only live in small areas such as Xuancheng, Jingxian and Nanling. If the northern boundary moves northward, alligators may become extinct naturally.

6. Climate changes can lead to major changes in the spatial (latitude) distribution of biological zones and biological communities. For example, from 800 to 1200 AD, the average temperature in the North Atlantic region was 1°C higher than today, making it possible to grow corn in Norway. However, from 1500 to 1800 AD, a small ice age occurred in Western Europe, and the average temperature was only 1-2°C lower than today. , causing half of the farms in Norway to be abandoned, and almost all agricultural farming activities in Iceland stopped.