Greenland’s current rate of ice loss has accelerated from 25 billion to 234 billion tons per year, a whopping nine times increase in faster melt rate.
Warmer air at the surface of the ice sheet is responsible for about half of the ice that Greenland is losing each year. Warmer ocean temperatures around Greenland’s coastline, icebergs calving into the ocean and the ice sheet shedding ice into the ocean more quickly accounts for the other half of the ice loss.
For perspective, 3.8 trillion tons of ice melting off of Greenland and into the ocean between 1992 and 2018 is the same as adding the water from 120 million Olympic-size swimming pools to the ocean every year, for 26 years. This extra water is enough to cause at least 0.4 inches of sea level rise just from Greenland alone.
Even a small bit of sea level rise exacerbates the impacts of flooding during storm surges, high tides and hurricanes and exposes more and more people around the globe to increased flooding. If the current rate of Greenland's ice loss continues, researchers forecast that global sea level will rise approximately 3 to 5 inches by 2100. The findings in this study are consistent with the Intergovernmental Panel on Climate Change’s worst-case climate warming projections.
Laura Faye Tenenbaum is a public speaker, physical science professor, blogger, award winning and globally recognized innovator in the field of science and climate commun...
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