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☆ Coastal land is sinking, doubling the potential damage from rising seas — here's why
▼ + stars: | 2024-03-12 | by ( Diana Olick | In Dianaolick | ) www.cnbc.com time to read: +3 min

A new study shows that coastal communities may be more at risk from sea-level rise than previously thought. The sea level is rising as the earth heats and glaciers melt. They then built the first high-resolution maps of this, showing east coast land sinking anywhere from two millimeters to five millimeters per year—affecting more than 2 million people and 800,000 properties. In Baltimore, Maryland, so-called nuisance flooding is becoming more and more prevalent, due to sea-level rise and sinking land. Coastal Baltimore is sinking by more than two millimeters per year, according to the study.

Persons: Manoochehr Shirzaei, Shirzaei, it's, Grace Hansen, Hansen Organizations: Virginia Tech, U.S . Geological Survey, Geophysics, JFK, City Locations: U.S, United States, New, LaGuardia, Baltimore , Maryland, City of Baltimore, Baltimore

☆ Coastal cities are sinking in the US and pushing sea level rise into overdrive
▼ + stars: | 2024-03-06 | by ( Rachel Ramirez | ) edition.cnn.com time to read: +5 min

CNN —Dozens of cities along the US coastline are sinking at alarming rates, leaving them far more exposed to devastating flooding from sea level rise than previously thought, scientists reported Wednesday. Cities on the East Coast where sinking land is exacerbating sea level rise include New York City and Atlantic City; Virginia Beach; Charleston, South Carolina; and Savannah, Georgia. As much as a third of sea level rise in this region over the next three decades could come from the sinking effect, the report found. This is a particular problem in areas where new coastal land has been created over the years by backfilling with sediment. Additionally, researchers say most sea level rise studies make projections for the end of the century, which “is viewed as too far (away) to begin planning,” Shirzaei said.

Persons: ”, Manoochehr Shirzaei, Leonard Ohenhen, Ophelia, Bing Guan, Kristina Hill, you’ll, ” Ohenhen, Joe Raedle, ” Shirzaei Organizations: CNN, Virginia Tech, Cities, Seaboard, Corpus Christi, Reuters, University of California, Getty Locations: East, New York City, Atlantic City, Virginia Beach, Charleston , South Carolina, Savannah , Georgia, Gulf, East Coast, Louisiana, Texas, Galveston, Freeport, Corpus, Northeast, Hamilton Beach, Queens, Berkeley, New Orleans, Port, Miami

The East Coast Is Sinking New satellite-based research reveals how land along the coast is slumping into the ocean, compounding the danger from global sea level rise. SINKING BY 2050 RISING –5 +5 cm –20 –15 –10 0 Atlantic City is sinking up to 4 centimeters per decade. SINKING BY 2050 RISING –5 +5 cm –20 –15 –10 0 Several hotspots in Maryland are sinking over 10 centimeters per decade, while other areas are rising. SINKING BY 2050 RISING –5 +5 cm –20 –15 –10 0 Charleston, S.C., which is affected by groundwater pumping, is sinking up to 5.7 centimeters per decade. Portland, Maine 47.0 cm 45.8 cm +40 cm 40.6 cm Relative sea level rise 33.8cm +30 cm +20 cm SUBSIDENCE +10 cm Change since 1925 Global sea level rise 1925 2023 1925 2023 1925 2023 1925 2023 Sources: Dangendorf (2019) and the National Oceanography Centre.

Persons: ”, Leonard Ohenhen, Kenneth Miller, Inner Harbor BOSTON Charles, “, Miller, “ We’ve, Sandy, we’ve, Sandy Hertz, Hertz Organizations: Virginia Tech, U.S . Geological Survey, NASA, Rutgers University ., Places New, National Oceanography, The New York Times, East Boston Charleston East Cambridge Airport, Inner, Pleasure, Roxbury, Boston City Archives, Boston Public Library, Boston Groundwater Trust, PNAS, Rutgers University, American Society of Civil Engineers, Army Corps of Engineers, Maryland Department of Transportation Locations: Boston, New York City, Long, Maryland, Hampton, Va, Charleston, S.C, Florida, Miami, Places New York City, N.Y, Atlantic City, N.J, Mass, Portland , Maine, York City, New Jersey, East, Inner Harbor BOSTON, Pleasure Bay, Savin, Roxbury Grove, Shirzaei, Cape Canaveral, exurbs, Delaware, Atlantic, East Coast

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