Sea levels are rising because of warming in the polar regions, which is both melting sea ice and causing thermal expansion - where the water physically expands as sea temperatures rise.
This is a problem because if sea levels keep rising as rapidly as they are, eventually coastal regions - and possibly entire islands - will be flooded or underwater.
Some of the land that would be lost is important for food growing, such as the delta of the Nile river.
And millions of people could be displaced. One local council in North Wales has already got a plan in place to evacuate all of the residents of its coastal village within the next 25 years, or sooner if necessary.
0 Comments:
Post a Comment