In 1823, American explorer Benjamin Morrell reported hunting seal along a coastline in the Weddell Sea near Antarctica. The land, he wrote, abounded in sea elephants and “oceanic birds of every description.” No one has been able to rediscover Morrell’s land, and in the 20th century it was shown conclusively to have disappeared.
In 1841 the English whaler James Stewart described a snow-covered island 5 to 6 miles long in the South Pacific. Other ships confirmed its existence in 1860 and 1886. But subsequent searches found nothing. John Davis of the Nimrod, who searched the area in 1909, wrote, “I am inclined to think Dougherty Island has melted.”
For nearly 30 years, India and Bangladesh disputed an island in the Bay of Bengal. In 2010 rising sea levels solved the problem: The island has disappeared. “What these two countries could not achieve from years of talking,” said Jadavpur University oceanographer Sugata Hazra, “has been resolved by global warming.”