but we could see an accelerated rise of maybe three or four times that according to,ip sfpuc. instead of half a foot we could see three feet. you know out here at fort point here in san francisco. first of all we don't know what the climate is doing to do, but secondly, the way ice gets dumped into the ocean from the land based - well sea level rises from one, the water gets warmer and inflates because it's density is less and that's well understood and handled by climate models. what's not well handled is the fact that when ice gets shed from green land and antarctica, there's 70 levels that if it all melted would raise sea levels but the problem is it's not like an ice cube where we're shining a lamp on it to watch it drip. it might slip. we're seeing more and more of these failures and we saw part of antarctica, shed off in a few days. somebody was looking at satellite map's and away it went. that caused sea levels to rise. that mechanism is not well represented in models or understood very well. sea level rise by itself is gentle three feet of rise may not do too much but

that's showing up in some observations across the united states and i think you'll see this in the,ip sfpuc, but it's not real real strong. i would say that's kind of a second order effect. you know, if we were living in the gulf states we probably would be worried about the tendency for more tropical storms and we really have not seen that in these models in the eastern pacific but i don't know that they would show that. so, there is more specificity developing as we do more and more work on this. there's more models and you know we've gone from maybe a dozen models to 20 or so, in the fourth assessment and their contributing all of this. it's an interim process and one that which, incremental changes and improvements are being made. >> i think we're going to end it there and i'll thank the panel one more time. thank you, very much. [applause] >> thank you very much. jeff, panelists great job. lanl we are going to have a reception that way, and we encourage you to join us. i just have a couple of comments. we are doing to be having a synopsis of the panels today. those are going to be avai