I can tell you all right now the politicians have no intention of doing anythng about Global Warming because it would mean people would have to stop flying and driving cars as much as they do and that is never going to be accepted politically.
Frankly, so what if the temperature might rise 2 degrees? The probability of it happening is not 100% guaranteed and we do not know truely what the consequences would be.
To be honest, if the electricity went off tomorrow for two weeks the economic, social and political impact would be so severe that the Govt would probably fall immediatley.
People care more about what is happening right to the economy and in their lives than what might or might not happen 100 years from now.
Don't lose sleep over the threat of Global Warming and rising sea levels. It may never happen and no one really wants to do anything to stop it anyway.