sexta-feira, 27 de novembro de 2009

Previsões de medo sem valor

"... Once I looked at Chernobyl, I began to recall other fears in my life that had never come true. The population bomb, for one. Paul Ehrlich predicted mass starvation in the 1960s. Sixty million Americans starving to death. Didn't happen. Other scientists warned of mass species extinctions by the year 2000. Ehrlich himself predicted that half of all species would become extinct by 2000. Didn't happen. The Club of Rome told us we would run out of raw materials ranging from oil to copper by the 1990s. That didn't happen, either.
It's no surprise that predictions frequently don't come true. But such big ones! And so many! All my life I worried about the decay of the environment, the tragic loss of species, the collapse of ecosystems. I feared poisoning by pesticides, alar on apples, falling sperm counts from endocrine disrupters, cancer from power lines, cancer from saccharine, cancer from cell phones, cancer from computer screens, cancer from food coloring, hair spray, electric razors, electric blankets, coffee, chlorinated water...it never seemed to end.
Only once, when on the same day I read that beer was a preservative of heart muscle and also a carcinogen did I begin to sense the bind I was in..."
Michael Crichton

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