
Great piece in the New York Times this week about how the earth’s depleting groundwater can be detected from space. From the article:
The two satellites, each the size of a small car, travel in polar orbits about 135 miles apart. Each bombards the other with microwaves calibrating the distance between them down to intervals of less than the width of a human hair.
And the story only gets better from there. Check out what happens when the satellites detect changes in the water levels below the earth’s surface. Whether you believe global warming is fact or fiction, the earth’s fast-dropping groundwater levels can’t be denied. The article raises the long debated question over if, and how, groundwater should be regulated. Although Southern California is not on the list of troubled hot spots (the Sacramento-San Joaquin Valley is, however) this is an issue we all need to pay attention to.
Here in Los Angeles County for instance, the sound management of the Central Groundwater Basin will help to ensure that issues like these are avoided and that public interests are protected.
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