environmental policies is very often a hazardous endeavor. Largely, this is because potential costs and benefits associated with environmental problems can only be speculated upon, rather than empirically determined. It is not clear, for instance, how much reducing a factory's greenhouse emissions will quantitatively help society; nevertheless, making good decisions regarding these issues demands that we weigh calculable figures with estimates, and sometimes, estimates with estimates. This makes the already fierce setting of environmental debates an even more perilous battleground. Imperfect information influences individuals, environmentalists, government officials, and businesses in ways that generally require them to reach their own conclusions, and apply their unique perspectives. This unique attribute of environmental science makes it a wide-ranging field that often requires the groups involved to make informed decisions, derived from such varying disciplines as physics and physiology. Mike Kurlansky's The Cod's Tale helps to demonstrate the enormous tasks environmental scientists are faced...
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