coast and british columbia and as far south to the baja peninsula. open up the scope and you can see it loops back, gets more concentrated and hits hawaii for a second time. as you can see on this computer model we're looking at a strike to hawaii with the debris, not once, but twice, because the currents work in a clockwise fashion and they'll actually bring the debris back. it will become more concentrated when it makes the second loop. there's a lot of factors that can influence this. not only do you have the natural breakdown of the debris but the debris slams into each particle slams into the other. so that will lep to break it down. but it's interesting to note we'll be talking be about this debris affecting the west coast, parts of canada and hawaii, not just this year, next year, but next several years as it works its way across the pacific ocean. fascinating science coming out of the university of hawaii. stay with us. we'll have a lot more straight ahead on "cnn saturday morning."