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Gr 6–8—"When healthy, the Gulf floor teems with many kinds of life, but in a dead zone, it is covered with grayish-black, foul-smelling goo." Highlighting one of the more insidious by-products of environmental pollution, Hand explains how fertilizer runoff can result in algal blooms far downstream that leave huge areas of fresh or salt water so hypoxic—or low in oxygen—that only anaerobic bacteria can survive. Though noting that the Baltic contains seven of the world's 10...Log In or Sign Up to Read More

The oxygen-poor sections of the Gulf of Mexico, Baltic Sea, and other bodies of water threaten marine and coastal animal populations, as well as hu...Log In or Sign Up to Read More

Clear explanations will incite interest in the issue of dead zones as well as general environmental concerns. Rather than simply describing the causes of dead zones and the destruction created by anoxic marine environments, this book also considers various ways of rectifying the proble...Log In or Sign Up to Read More