Why is global warming the cause of the expansion of ocean deserts?

Since the advent of the new era, the temperature has also followed the development of global industry, resulting in the phenomenon of global climate warming. The previously mentioned Antarctic and Arctic ice shelves are collapsing, sea ice is melting, and global sea levels are gradually rising. Even the Pacific island nation of Tuvalu is worried because it is a low-lying place and if the sea water rises, it means the entire country will be submerged. Why are seawater and deserts getting bigger because of climate warming? Let’s find out together

Will the oceans expand in the future?

It is understood that, in general, global warming will cause sea levels to rise. And for some coastal cities, it will definitely have an impact on survival. However, what depresses scientists is that this does not seem to be the ending. Because when the climate is warmer than that, global sea levels fall, not rise. This time, scientists misjudged the impact of climate warming. Is it good or bad?

The expansion of the Sahara Desert

Looking at the four-season precipitation data from 1920 to 2013, we found that the places around the Sahara Desert that were not deserts in the past have become deserts. According to what is said above, if it is due to global warming, then not only the Sahara Desert is expanding, but the area of ??other deserts in the world may also be expanding. Project researcher Professor Sumant Nigam said: "Although our results are limited to the Sahara Desert, they may also be applicable to other deserts in the world."

Why are deserts also expanding?

The precipitation in the desert is very small, usually less than 100 mm in a year. And the Sahara Desert and many surrounding areas are now clearly within this range. But after a study, Sumant Nigam, a professor of atmospheric and oceanic sciences at the University of Maryland, said that "deserts in the subtropics are formed because of the Hadley cell, where air rises in the equatorial region and sinks in the subtropics, resulting in deserts with little rain. However, Due to weather conditions, the Hadley cell may actually be expanding, causing the subtropical desert area to push northward.

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