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- Climate activists, including government bureaucrats, claim the Greenland ice sheet is melting six times faster than it was 30 years ago.
- Thirty years ago, the Greenland ice sheet was barely melting at all. “Six times” almost no ice loss remains almost no ice loss.
- When recent ice loss is compared to the full Greenland ice sheet, the loss is so small that it is almost undetectable.
- Sea-levelmeasurements contradict claims that Greenland ice loss threatens coastal flooding. NASA satellite instruments, with readings dating back to 1993, show global sea level rising at a pace of merely 1.2 inches per decade, which is not significantly different than the typical rate of sea-level rise since the mid-1800s.
Short Summary: NASA scientists and media pundits have said this about the Greenland and Antarctic ice sheets: “The two regions have lost 6.4 trillion tons of ice in three decades; unabated, this rate of melting could cause flooding that affects hundreds of millions of people by 2100.” However, that is far short of even 1 percent of Greenland’s ice mass. As shown in the right graph in Figure 1, below, the total ice loss each year is a nearly undetectable five one-thousandths of one percent (0.005 percent) of the Greenland ice mass.
- Greenland, Antarctica Melting Six Times Faster Than in the 1990s source: NASA press release. Accessed 03/28/20 https://www.nasa.gov/feature/jpl/greenland-antarctica-melting-six-times-faster-than-in-the-1990s
- NASA satellite instruments, with readings dating back to 1993, show global sea level rising at a pace of merely 1.2 inches per decade. “Sea Level Rise,” Climate at a Glance, accessed 4/2/20, https://climateataglance.com/climate-at-a-glance-sea-level-rise/
- The data plotted in the graphs above is from the ice sheet mass balance inter-comparison exercise (IMBIE), a joint exercise by NASA and the European Space Agency. http://imbie.org/about-the-project/
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