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Study shows sea level rise is accelerating

Study shows sea level rise is accelerating

WASHINGTON — Melting ice sheets in Greenland and Antarctica are speeding up the already fast pace of sea level rise, new satellite research shows.

Sea level rise is caused by warming of the ocean and melting from glaciers and ice sheets.

But the process is accelerating, and more than three-quarters of that acceleration since 1993 is due to melting ice sheets in Greenland and Antarctica, the study shows.

Like weather and climate, there are two factors in sea level rise: year-to-year small rises and falls that are caused by natural events and larger long-term rising trends that are linked to man-made climate change.

Global sea levels were stable for about 3,000 years until the 20th century when they rose and then accelerated due to global warming caused by the burning of coal, oil and natural gas, said climate scientist Stefan Rahmstorf of the Potsdam Institute in Germany, who wasn’t part of the study.

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