Developed countries like England, and USA will help those poorer countries to build their own mega sea barriers against rising sea levels.
For protecting the city from over flodding , there has to be a proper development of the country that has to be made to protect the country from flooding , also the country has to make Mega walls and have their own sea barriers against the sea levels. A sea barrier (also known as a storm surge barrier) is a structure at the mouth of a river or inlet that can be closed against coastal storm surge or high tides to help prevent flooding. Sea barriers help protect coastal cities from flooding caused by storm surge or high tide.
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