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Greenland and Antarctica ice loss reaches 11 trillion tons since 1979
A major study published in Scientific Data by the Ice Sheet Mass Balance Intercomparison Exercise (IMBIE) reveals that the Greenland and Antarctic ice sheets have lost approximately 11 to 12.5 trillion metric tons of ice between 1979 and 2023. This massive loss of ice has contributed to a global sea-level rise of roughly 3.1 to 3.14 centimeters.
Researchers found that the rate of ice loss has accelerated significantly since the 1990s, with a notable increase in volume during the 2010s. The study highlights that approximately 84 percent of this ice loss is driven by dynamic processes—specifically glaciers flowing more rapidly into the ocean due to warming waters—rather than direct surface melting from warmer air.
Lead author Inès Otosaka of Northumbria University noted that while a 3-centimeter rise may seem minor, every additional centimeter of sea-level rise puts an estimated 2 to 3 million people at risk of annual coastal flooding. The findings, based on data from 27 satellite missions, underscore the long-term impact of warming oceans on polar ice stability.
Entities
Antarctic ice sheet · Antarctica · Greenland · Greenland Ice Sheet · IMBIE · Ice Sheet Mass Balance Intercomparison Exercise · Ines Otosaka · Northumbria University · Scientific Data
Claims
What the coverage asserts, and how many sources carry each claim.
- [○ 1 SOURCE] Increased precipitation in Queen Mary Land and Wilkes Land was driven by atmospheric rivers and tropical sea surface temperatures.
- [○ 1 SOURCE] Glaciers are flowing faster, leading to increased ice discharge. gizmodo.com
- [● 4 SOURCES] Five-sixths of the ice melt is caused by warmer waters rather than hotter air. srnnews.com · www.gazetebirlik.com · www.bursahakimiyet.com.tr · www.indyturk.com
- [DISPUTED] Greenland and Antarctica have lost approximately 12.5 trillion tons of ice since 1979. srnnews.com · www.gazetebirlik.com · www.bursahakimiyet.com.tr · www.indyturk.com
- [DISPUTED] The melting ice has contributed to a global sea level rise of about one inch since 1979. srnnews.com · www.gazetebirlik.com · www.bursahakimiyet.com.tr · www.indyturk.com
- [○ 1 SOURCE] The Jakobshavn glacier in Greenland is retreating by up to 164 feet per day. srnnews.com
- [○ 1 SOURCE] East Antarctica gained upwards of 700 billion tons of ice since 2021.
- [DISPUTED] For every third of an inch of sea level rise, an additional 2 to 3 million people face annual flooding. srnnews.com
- [● 3 SOURCES] Five-sixths of the ice loss is caused by warming ocean waters rather than rising air temperatures. www.gazetebirlik.com · www.bursahakimiyet.com.tr · www.indyturk.com
- [DISPUTED] The melted ice has contributed to a 3.1 centimeter rise in global sea levels since 1979. www.gazetebirlik.com · www.bursahakimiyet.com.tr · www.indyturk.com · srnnews.com
- [DISPUTED] Every 1 centimeter of sea level rise puts 2 to 3 million people at risk of flooding annually. www.gazetebirlik.com · www.bursahakimiyet.com.tr · www.indyturk.com · srnnews.com
- [● 4 SOURCES] 12.5 trillion tons of ice have melted in Greenland and Antarctica since 1979. www.gazetebirlik.com · www.bursahakimiyet.com.tr · www.indyturk.com · srnnews.com