but if you want to understand, ask leslie lako. she understands very clearly. if it turns out that sea level rise is closer to 3 feet over the next century, here are two maps. the one on the left shows what the bay looked like in 1849. the other one shows what it will look like in 2100. as you can see, they look pretty much the same, and that's the good news because the bay surface that was lost to diking and filling in the first century after california became a state would once again become part of the bay. the bad news is we have built all kinds of very expensive stuff that's critical to civilization in the bay area on most of that filled land. let me show you a few examples. this is san francisco international airport. the dark blue is where the bay is now. the light blue is where it will be with a one meter rise in sea level. that's oakland international airport. clearly they should be building sea planes. that's silicon valley. now, just for fun, we mapped the san francisco public utility commission's waste water treatment commission. as you can see, a lo