The data would help a lot Nick - measurements of exactly how much the sea levels have risen and where, exactly how much the temperautre has risen and where; lots of articles refer to this information but none include it specifically, it is usually a generalised 'sea levels have risen' which is then used to fuel a prognosis of what would hapeen if sea levels continue to rise.
Then a realistic removal of all the other possible causes including sunspot activity, nuclear testing, volcanic activity; these are often brushed aside as an inconvenience.
It isn't just me you have to convince, there's a whole world of people out there who, by your assertion, need to change their lifestyle - some much more than others.