Using historic aerial photographs and high-resolution satellite imagery, Auckland University scientists Murray Ford and Paul Kench recently analyzed shoreline changes on six atolls and two mid-ocean reef islands in the Marshall Islands. Their peer-reviewed study, published in the September 2015 issue of Anthropocene, revealed that since the middle of the 20th century the total land area of the islands has actually grown.
This is not only true for the Marshall Islands. The researchers write that within the “recently emerging body of shoreline change studies on atoll islands there is little evidence of widespread reef island erosion. To the contrary, several studies have documented noteworthy shoreline progradation [growth] and positional changes of islands since the mid-20th century, resulting in a net increase in island area.” The most famous of these studies, published in 2010 by Paul Kench and Arthur Webb of the South Pacific Applied Geoscience Commission in Fiji, showed that of 27 Pacific islands, 14% lost area. Yet 43% gained area, with the rest remaining stable.