If you're going to Miami or the Florida Keys, you should book tickets early. If climate change continues, most of Florida's southern coast will be submerged in a few decades.

Harold Wanless, a professor of geography and sustainable development at the University of Miami, told CBS News that the tide will not come back out.

He said that climate change is real. This is not something that could happen.

Doomsday Glaciers

The summer season has made the threat of climate change all the more clear. The southern coast of the US is at risk of being swallowed by the ocean.

Wanless told CBS that the melting of oceanic ice mountains is a big part of South Florida's issue.

The problem is that the sea level is rising at an accelerated rate because of the melting of ice in the polar regions. A rare high tide will become a frequent high tide.

The glaciers made a decision to melt on their own. Sea level rise is the result of our warming oceans which in turn have been caused by the production of greenhouse gases.

Wanless said that over 90 percent of the extra heat is transferred to the ocean.

Time for Change

Are you talking about scale? By 2060, Wanless says, almost 60 percent of Miami-Dade county will be underwater. There are homes, businesses, and habitats on that land.

The CBS report comes on the heels of an analysis by Climate Central. It found that the US will lose about 4.5 million acres of land and 650,000 individual properties to sea level rise by the year 2020.

Is it in total? It's not good. We have time to mitigate at least some of the climate crises that we are currently barreling towards. It's only if we act. Next time you go to Miami, might you just fly first class?

Sea level rise will affect South Florida coastal cities.

Scientists say hundreds of thousands of American homes will be swallowed by the sea.