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WASHINGTON, DC: A report led by the U.S. National Oceanic and Atmospheric Administration (NOAA), forecasts a two metre ocean level rise by 2100.

The water level along America’s coastline will rise an additional 10-12 inches in the next 30 years - more than in the previous 100 - leading to increased coastal flooding even without heavy rain or storms.

“For businesses along the coast, knowing what to expect and how to plan for the future is critical,” commented U.S. secretary of Commerce Gina Raimondo. “These updated projections will help businesses, and the communities they support, understand risks and make smart investments in the years ahead.”

By 2100 the report expects sea levels to be 0.6–2.2 metres higher and 0.8–3.9 metres higher by 2150, depending on levels of future global emissions and mitigation.

“This report supports previous studies and confirms what we have long known: Sea levels are continuing to rise at an alarming rate, endangering communities around the world. Science is indisputable and urgent action is required to mitigate a climate crisis that is well underway,” added Bill Nelson, NASA Administrator.

Without additional risk-reduction measures, U.S coastal infrastructure, communities and ecosystems will face “significant consequences,” the study notes.

“By 2050, moderate flooding ⁠- which is typically disruptive and damaging by today’s weather, sea level and infrastructure standards ⁠- is expected to occur more than 10 times as often as it does today,” said NOAA National Ocean Service director Nicole LeBoeuf,. “These numbers mean a change from a single event every 2-5 years to multiple events each year, in some places.”

The report, from the U.S. Interagency Sea Level Rise and Coastal Flood Hazard and Tool Task Force, comprises input from NOAA, NASA, EPA, USGS, DoD, FEMA, the U.S. Army Corps of Engineers, Rutgers University and Florida International University.
 
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