It's a good idea. I do believe that the islands location is a closed atmosphere, so a pollutant may take longer to weaken then here on earth world. I guess we have to find out if anyone ever was concieved and born on the island, they really have not alluded to that yet. Danielle may have been pregnant already.. or I'll guess we'll see what happens to Sun. I guess she's keeping Jin in the dark on the knew news huh?