According to a recently published study, Miami, New Orleans, and a number of other US cities are already beyond the point of being saved from rising sea levels.

As the world's temperature continues to increase, the West Antarctic ice sheet is under threat, and carbon emissions are still being produced at high levels. 

According to a study recently published in the Proceedings of the National Academy of Sciences, over 20 million people in the US are at risk of having their cities and homes completely lost to the rising sea based on current trends.

Though a drastic reduction in current carbon emission rates and a resulting stabilization of the ice sheet offer some hope for most of them, Miami and New Orleans are predicted to fal