Y! Green: If you`ve been keeping tabs on the catastrophic (an adjective I feel like I`ve been having to use far too often lately) Deepwater Horizon oil spill in the Gulf of Mexico, you`ve probably been wondering how exactly you can help. Well, for those of you with furry, four-legged flatmates, it can be as easy as sweeping the floors and collecting all that errant fur and hair. So how exactly can hoarding pet fur help with cleaning up one of the worst environmental disasters in recent memory? Enter …