"The Vanishing Islands That Failed to Vanish"

"Low-lying tropical island nations were expected to be early victims of rising seas. But research tells a surprising story: Many islands are stable. Some have even grown."

"On a wisp of land in the Indian Ocean, two hops by plane and one bumpy speedboat ride from the nearest continent, the sublime blue waves lapping at the bone-white sand are just about all that breaks the stillness of a hot, windless afternoon.

The very existence of low-slung tropical islands seems improbable, a glitch. A nearly seamless meeting of land and sea, peeking up like an illusion above the violent oceanic expanse, they are among the most marginal environments humans have ever called home.

And indeed, when the world began paying attention to global warming decades ago, these islands, which form atop coral reefs in clusters called atolls, were quickly identified as some of the first places climate change might ravage in their entirety. As the ice caps melted and the seas crept higher, these accidents of geologic history were bound to be corrected and the tiny islands returned to watery oblivion, probably in this century.

Then, not very long ago, researchers began sifting through aerial images and found something startling. They looked at a couple dozen islands first, then several hundred, and by now close to 1,000. They found that over the past few decades, the islands’ edges had wobbled this way and that, eroding here, building there. By and large, though, their area hadn’t shrunk. In some cases, it was the opposite: They grew. The seas rose, and the islands expanded with them."

Raymond Zhong reports for the New York Times June 26, 2024 with photographs by Jason Gulley and graphics by Jonathan Corum.

Source: NYTimes, 06/27/2024