Human activities and climate change are threatening natural beaches worldwide. It appears that rising sea levels, intensified storm action, and, in particular, development by humans are wiping out our natural sand beaches. Already, it is estimated that 75 to 90 percent of the world’s natural sand beaches are disappearing. Beyond having troubling ramifications for beach-goers, this situation has serious economic implications, with sand being used in products from electronics to concrete. In some parts of the world, sand is being imported from far away to replenish popular beaches. As a result the sand and gravel industry is booming, shipping inland sand to ocean shores to maintain the tourist attractions. In many cases, sand is travelling great distances, as in the case of Dubai replenishing its beaches with Australian sand. The New York Times has more: