The issue is very controversial.
Some people argue that the water level will rise because of:
not as a direct effect of the rise in temperature, instead, rising the temperaure of the water inceases the volume of it;
some other instead argue that it's due to the ice-melting.
Either case, the question is not as simple as that. We can't generalize for the whole planet. In some places the world will be warmr, in some other cooler. UK, for instance, will suffer because if the ices of the north pole and Greenland melt, cold water coming down from the river to the sea will stop the hot Gulf current, causing a decrease in the temperature of the water, which will affect the whole ecosystem.
A piece of mind.
Pain
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The issue is very controversial. Some people argue that the water level will rise because of: not as a direct effect of the rise in temperature, instead, rising the temperaure of the water inceases the volume of it; some other instead argue that it's due to the ice-melting. Either case, the question is not as simple as that. We can't generalize for the whole planet. In some places the world will be warmr, in some other cooler. UK, for instance, will suffer because if the ices of the north pole and Greenland melt, cold water coming down from the river to the sea will stop the hot Gulf current, causing a decrease in the temperature of the water, which will affect the whole ecosystem. A piece of mind. Pain