By the end of the century, if greenhouse gas emissions continue unchecked, Fenway Park, along with a huge chunk of the rest of Boston, could end up underwater. Miami Beach might be submerged. The same is true for parts of every coastal city, from Hong Kong to Mumbai.
Cities may start to drown much faster than expected because sea levels could rise much faster than expected—mostly thanks to the way that Antarctica could fall apart and melt.
Image: http://www.fastcoexist.com