NASA warns that sea level will rise up to 30 centimeters by 2050

Rising waters threaten coastal cities such as New York, Boston and Miami.

The world’s oceans will rise faster in the next three decades than in the last 100 years, leading to more flooding in coastal cities such as New York and Miami, according to a report.

Sea levels are expected to rise by as much as 30 centimeters by 2050, according to a report led by the National Oceanic and Atmospheric Administration. While the amounts vary by region, this will lead to more coastal flooding and make storm surges and storm surges more severe.

“Sea levels continue to rise at a very alarming rate,” Bill Nelson, administrator of the National Aeronautics and Space Administration, said Tuesday in a conference call with reporters. “And it’s putting communities around the world at risk.”

Rising waters threaten coastal cities, including New York, Boston and Miami, which already typically experience flooding during high tides that occur with a full moon and new moon. Homes, businesses, roads and other infrastructure along the coasts are vulnerable to damage from flooding and sea level rise. Nearly 8 million homes, with a rebuilding cost of $1.9 billion are at risk from storm surges, according to a 2021 CoreLogic report.

Sea levels in Manhattan could rise 2 feet by 2055 or 2078, based on climate change impacts, according to NOAA estimates. Approximately 7,895 people in Manhattan live in low-lying areas that would flood with less than 2 feet of sea level rise.

High-tide flooding has more than doubled in New York since 2000 and now occurs 10 to 15 times a year, according to the report. The annual frequency of flooding in Miami and Charleston, South Carolina, has increased from zero to two days in 2,000 to about five to 10 days last year.

“These increases will continue, accelerate further, and spread to more locations over the next two decades,” says the report, which updates a 2017 sea level projection.

“This new data on sea level rise is the latest reconfirmation that our climate crisis, as the president has said, is flashing ‘code red,'” White House national climate adviser Gina McCarthy said in a statement. “We must redouble our efforts to reduce the greenhouse gases that cause climate change while helping our coastal communities become more resilient in the face of rising sea levels.”

According to the report, by trapping heat that melts ice sheets, greenhouse gas emissions will contribute approximately 2 feet of global sea level rise by 2100. If future emissions are not reduced, sea level could rise an additional 18 inches by the end of the century to 5 feet.

The U.S. coast from around North Carolina to Maine is a hotspot of global sea level rise.

Global warming above 3 degrees Celsius would stimulate rapid melting of the Greenland and Antarctic ice sheets, releasing that water into the oceans. The exact damage is difficult to model because of the “instability of the ice sheet,” according to the report.

In addition to NOAA, researchers from NASA, the Environmental Protection Agency, the U.S. Geological Survey, the Department of Defense, the Army Corps of Engineers and the Federal Emergency Management Agency contributed to the 111-page report.

Article Author Gerluxe

Image: wikipedia