8. Egypt
One of the only non-island countries on our list of countries that will be underwater due to global warming, Egypt faces severe risk of going underwater. Since the coastal line of the country is densely populated, the number of people who face this peril is astounding. Home to one of the longest rivers in the world, Egypt stands to lose 6.1 million residents if there is even a single meter of increase in the surface of the Mediterranean Sea, according to this report. However, as time goes by, the people and area likely to be affected by this danger keep on increasing since thermal expansion appears to be a steady process.
