This is kind of mindblown. Over 300,000 people have seen this informative video by Tom Scott explaining to us, why we might have a lack of sand some day…

“I never thought of sand as a non-renewable resource, but there’s only a limited supply: and to make things worse, it keeps getting washed into the sea. At Cape May, New Jersey, the US Army Corps of Engineers have just finished rebuilding a beach: here’s why.”

via: likecool