Yes, Boundaries & Scales, but also Impact Tolerance Standards. Ecologists cannot make a mathematically valid case that using a coffe cup size amount of DDT on the inside surfaces of homes in malaria prone countries every 6-12 months could ever have more than a negligible adverse impact on the health of the humans and wildlife living outside of the homes.
But by advocating a zero adverse impact standard, some affluent ecologists and eco-activists from malaria free countries can justify genocidal policies against poorer countries (deny them access to life saving DDT). Paul Cherubini El Dorado, Calif.
