so, we are a cotal cntry, iyou will what climate change is gonna do, the most important impact to coastal areas is gonna come through sea level rise. and that means that coastal flooding gets worse, coastal erosion gets woe, we'reonna see astal ars inundad. d in fa, the imrtant thing is, th is not mething out the fure. it's alrey happeni now. viinia bea, miami, new orleans, they're already dealing with those types of impact. one trilln dollar worth of structures and property sitting right at the shoreline. so flooding will get more extensive, it will happen more frequely, and at sort tng is wh puts miions of americans at risk every year. >> by 2045, we could see as little as 5 inches of extra sea level rise or 11 inches of extra sea level rise. now, to put that in concrete terms, let's lo at the u.s. naval academy in annapolis, maryland. now, annapolis right now experiences about 50 nuisance floods a year. unr the best- case scenario, in 30 years hence it could be as high as over 240, about, high tides a year. if we have a highest-emission scenario, it could be as high as 380 tides a year