I guess that would have to be Tipper. Since they bought it recently, my analysis is that she squeezed it out of him in exchange for his silence. She does not believe that sea levels will rise due to Global Warming. That is why she has accepted the oceanfront property.
OTOH, if it turns out that I am wrong and Gore more into it, it would prove that even he does not believe that the oceanfront property will go underwater.
Both heavily ping my gaydar.
Maybe she wants a husband with eyebrows.