For me, there is a stigma attached to playing beautiful parts. They are often empty characters whom the action happens around. I'm more drawn to characters with a complex internal life, who have a burning frustration underneath that keeps them going.
Are we likely to see rising sea-levels? Not in our lifetimes or hose of our grandchildren. It is not even clear that sea-levels have risen at all. As so often in this domain, there is conflicting evidence. The melting of polar or sea ice has no direct effect.