While working in Ghana last year, I learned that an unusually high number of dead whales had washed ashore since the start of oil drilling. I talked to several local environmentalists who feared the deaths were connected to the country’s oil industry but had no resources to investigate. Without offering any details or study results, the Ghana EPA declared the whale deaths were unrelated to the oil industry.
Although there had been no significant oil spills in Ghana, another form of pollution, which may have played a role in the whale deaths, was ongoing yet invisible: Noise pollution. Shipping and drilling are two known causes of significant underwater noise. Noise pollution — especially when it’s below the ocean surface — doesn’t get much attention. But as a recent article in the New York Times points out, the world’s oceans are increasingly noisy and the impact on marine life, mammals in particular, may be devastating: