Ice & Us: There Is No Turning Back

Photo by NASA. Some rights reserved.

Photo by NASA. Some rights reserved.

The scientific community seems to talk about rising sea levels A LOT. This makes sense – as far as consequences of global warming go, it’s one of the easiest to explain, and one of the most potentially disastrous. We’ve looked at how a rise in sea level would effect us domestically and the results were not heartening. It’s pretty easy A-to-B math to see that if the sea level goes up, many coastal cities will be in critical danger of flooding and other natural disasters, and the entire ecology of the oceans will drastically change. And if that proof wasn’t in the pudding before, it sure is now.

Two new studies released this week confirm that the enormous West Antarctica Ice Sheet, the segment of the Western Antarctica continent that extends out into the Amundsen Sea, is losing mass at a rate that cannot be reversed. The ice sheet is estimated to weigh 25.4 million km3, however the accepted narrative in scientific communities for decades has been that it has been steadily and exponentially losing mass, to the point where snowfall is no longer replacing the amount of ice the sheet is losing. Between the years of 1996 and 2006, there was a 75% increase is the amount of ice mass lost, a statistic that seemingly should have set off alarm bells eight years ago. This week’s studies, then, should really just function as icing on a terrible, terrible cake, but judging by the reactions seen online, a lot of people were unaware that this was a problem.

The studies (one published in Science and one in Geophysical Research Letters) reach the same unsettling conclusion – the ice sheet is falling apart, and at this point the process cannot be reversed or delayed. The melting process will unsettle neighboring sections the larger continental ice sheet, and will result in a 10 + ft. rise in sea level. This will continue to happen slowly over the rest of the 21st century and speed up in coming centuries to the point of total global crisis. Coming on the heels of very pessimistic reports on climate change from the White House and NASA, it seems the gravity of the situation is finally starting to sink in on the Internet at large. I saw links to both of the aforementioned studies linked to dozens of times on many social networks by all sorts of people who normally wouldn’t be inclined to share this kind of stuff. The reality of climate change has, for many, finally gotten personal.

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