A QUARTER-CENTURY AFTER THE FIRST EARTH DAY caught our imagination, 23 years after passage of the Clean Water Act, 22 years after the Endangered Species Act promised fair treatment for wild creatures, how fares our sad old planet's health?
Obviously there have been huge improvements. Lead, for instance, slows mental and physical development in children. The increasing use of lead-free gasoline around the world vastly reduces these ills. But banning leaded gas is a regulation, and REGULATION, as conservatives know, is what the Devil has printed on his T shirt. So lawmakers clamor for a risk-assessment bill that could be used...