If Antarctica Thaws


Recently, my posts discuss a lot about Ice Ages, climatology,  and global warming. Most of it focused on the Arctic.  Apparently researchers in Norway and Germany think another vulnerable area is East Antarctica specifically the Wilkes Basin.  It stretches over 600 miles (1,000 km) inland and is vulnerable to thawing because only a tiny rim of ice on bedrock holds it in place.  If oceans warm and this rim of ice melts, the Wilkes Basin could break lose and melt.  Because the Wilkes Basin slants and this small rim of ice lays below sea level, once unplugged, it cannot reverse.

Antarctica is the size of the United States and Mexico combined.  If it ever melts, sea levels would rise 188 feet (57 meters).  Do not worry.  It will take 200 years for this plug to the Wilkes Basin to melt.  Those of us alive now won’t have to worry about seas rising that high.  However, it does not take much sea level rise to decimate many of our current large cities.  Already, in recent years New York City, Miami, and New Orleans have experienced immense economic flood costs.  Even if the seas rise a little more than seven inches by 2050, the following cities are expected to suffer huge economic losses:  Havana, Houston, Santo Domingo, Port au Prince, Baranquilla, Mumbai, Kolkata, Marseille, Istanbul, Athens, Beirut, Tel Aviv, Naples, Alexandria, Athens, Algiers, and five cities in China, including Shanghai.  The latter may explain why suddenly China has taken an increased interest in global warming and how to curtail it.

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