In 2013-09, the National Geographic published a map showing what parts of the world would be under water if the polar ice melted. The shocking part is nearly all the agricultural land will be under water. Prime agricultural land tends to be flat low-lying land, especially on river deltas. It is far more than just high temperatures we will be dealing with. Florida will be completely gone. Most of Louisiana will be gone. Denmark, the Netherlands, Bangladesh, Thailand will all be under water.~ Roedy (1948-02-04 age:70) source. To view other continents on the map, use the slider. Don’t click the continents.