Sea level rise is accelerating. At some point, our barrier islands will cross a disintegration threshold and begin to disappear. Because every mile of every beach is created differently, we will see some beaches begin to suffer sooner than others.

October 19, 2013, Padre Island National Seashore, low tide, Mile Marker 55 (50 miles beyond the four-wheel drive only sign). The seaweed drift marks the highest extent of the most recent high tide. The beach is basically impassible during high tide. This was the greatest erosion observed on the National Seashore this day. Photos (c) Bruce Melton / The Rag Blog.
PADRE ISLAND — For over 30 years I have been visiting Padre Island National Seashore, mostly as an official beach bum. My favorite thing to do on this narrow barrier island that protects the lower third of Texas’ coast is drive the four-wheel drive only beach. This place truly is a wilderness, or at least as close to one as we can get in Texas.
By about 2003 it became painfully obvious that sea level rise was causing the beach to shrink; this wasn’t just another natural cycle. In 2007 I began film work for my first sea level rise documentary that included Greenland, and Matagorda and Padre Islands (Matagorda Island is on the Middle Texas Coast and it too is a barrier island). The film is called The Ice and the Sea and can be seen here.
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