American researchers have calculated that due to sea level rise under water there will be cities in the east and southwest of the USA.

The list of cities that are under threat of flooding, included New York, Boston, San Francisco and Miami, the article says CNN.

In total, according to the estimates of the researchers, from 165 to 180 settlements in the US will be flooded within the next 20 years. By the end of the century, this figure will reach 490 big and small cities. The main cause of sea level rise in the 21st century, scientists call human activity.

"This study highlights what is really important for people. Sea level rise means a sharp increase in coastal flooding. In fact, most of the coastal floods are already caused today by the rise in sea level that caused human activity, "says one of the authors of the study, Dr. Benjamin Strauss.

Strauss states that at each increase in the global average temperature by 0.55 ° C, the sea level will rise by 1.3 meters. It is very likely that by the end of the 21st century the global sea level will rise by 5 meters.

"The number of people who will live in a zone of constant flooding will grow much faster than the sea level itself," added Benjamin Strauss.

Source: HB.