Scientists Are Building Climate Change-Proof Naval Sonar

Climate change is hurting the effectiveness of sonar devices that naval ships use to map the sea around them, but scientists are working on a solution. Sonar involves listening to sounds in the ocean in order to estimate where they are coming from, and how far away they are. The problem is that sound travels faster through warmer water than colder water and unless you know precisely how fast the sound is traveling, it’s difficult to get an accurate measure of distance.

“[We] haven’t...

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