Sea levels to rise 20 feet

“The decisions we make now about where we want to be in 2100 commit us on a pathway where we can’t go back”.

As stated by the authors, the study imposed a challenge on looking ahead to better understand how the ice sheets respond to these temperature increases.

Credit: Nickolay Lamm.

The study looked at the past changes and designed a framework for using those changes to refine their understanding of what our future holds for the coastal communities.

Louisiana would lose its boot shape, and San Francisco could become its own island, showed study. This would be in addition to the 19cm the sea level has already risen since 1900.

Researchers showed that almost 3 million years ago, when the average temperature on earth was about 5 degrees Fahrenheit warmer. Globally, storm damage could cost cities from Hong Kong to Dhaka to New York trillions annually unless adaptation measures are taken. Overall, Climate Central determined the land on which more than 375 million people now live would be usurped by water.

Global sea level is on the rise, and these scientists say that climate change is to blame. The world’s oceans, ice sheets and climate are constantly performing an intricate dance. “While this amount of sea-level rise will not happen overnight, it is sobering to realize how sensitive the polar ice sheets are to temperatures that we are on path to reach within decades”.

Study’s lead researcher Andrea Dutton from the University of Florida, said that it is a concerning matter, but also affirmed that six metres projection is a long term one. The global Energy Agency recently warned that temperatures could jump by as much as 7.7°F (4.3ºC) by 2100 – more than double the amount that caused sea level to rise 20 feet in previous eras. Those ice shelves essentially act as doorstops, keeping the rest of Antarctica’s massive stores of ice on land.

At the present those ice sheets are losing ice at rates measured in millimeters, but during past warming periods they would have lost ice by the meters, the researchers point out.

Tokyo and Singapore also have been singled out as extremely vulnerable to sea level rise.

Sea degree peaked someplace between 20 and forty feet above current throughout an earlier heat interval about four hundred, 000 years in the past, when worldwide common temperatures are much less sure, however estimated to be about one to two diploma Celsius hotter than the pre-industrial common. Yet, they couldn’t tell how high the sea level rose due to inconsistent coastal records.

Mr. Clark also said that we are entering an “uncharted territory” as carbon dioxide levels continue to rise.

A major new analysis on the impact melting polar ice sheets could have on sea level rise has given rise to some worrisome conclusions.