There are few things on the island of Hawaii that are more valuable than fresh water. This is not because the island is dry. There is plenty of rain. The trouble is that there is tremendous demand for this water and much of it that does accumulate on the island’s surface disappears before it can be used. New research by marine geophysicists reveals that underground rivers running off the large island’s western coast are a key force behind this vanishing act.
Source: The New York Times