High exposure to Mercury = Homosexuality?

http://news.bbc.co.uk/earth/hi/earth_news/newsid_9243000/9243902.stm

An article I found while browsing some daily news.

1. Do you think this could actually be true?

2. If mercury in the environment could really be a cause, does that mean we will see a decline in the occurrence of homosexuals in the next decade or so as clean up of toxic waste progresses?

3. Does this raise the possibility of nullifying homosexuality by the injection of various cocktails? (No pun intended... haha.... no thats actually quite terrible)

I wonder if this correlation also applies to humans being exposed to mercury. Did the Roman Empire suffer from high levels of mercury when the Roman senate passed a bill legalizing same sex marriage or relationships? Homosexuality was accepted as socially normal being the Roman Empire's collapse. Perhaps homosexual couples should be tested for the amount of mercury in their blood to propose some sort of hypothesis.