Hey Tuza,
I'd love to see it happen, unfortunately I don't think the same can be said of the U.N. I just searched the official U.N. website for "petition" and the first link was
http://esaconf.un.org/WB/default.asp...ad=2267&fid=97.
It's a question on thier web board that asks "how do I make a petition online?". It's dated june 11 2005, w/ no replies at all.
Maybe the best venue (for most visiblity) would be something like or specifically
YouTube.
I know that in the eyes of your average human, the credibility leant by youtube is not quite that of the U.N. (laughable, I know), but grassroots efforts have a noble feel, and I can see that your intentions are indeed noble.
Best of luck to you.