America's worst man-made environmental disasters
What about the contamination of cattle feed with PBB in 1973-74 in Michigan? It is estimated every person in the state was poisoned. 9 million people.
I find it wrong that you would refer to huracanes, tornados, earthquakes, etc., as disaster. Just because humans die when these happen does not make them a disaster. They are nature being its natural way.
Somebody needs to go back to school and pay attention in science on the classification of disasters... It's called geology
Natural disasters level towns, destroy families, etc. Even if they're natural, it doesn't mean disaster doesn't entail. I'm sure you'd change your mind pretty quickly if you found yourself in one.
If people don't wake up to the presence of the 21st Century's New Messiah we will be dead within 100 years. The time has come to discover whether life means anything, and whether we need to Live or Give Up!
I'd add these for your consideration:
1) Introduction oif smallpox and other European diseases to western hemisphere - killed 10's of millions
2) Distruction of western forests, grasslands and buffalo in pursuit of "manifest destiny"
3) Pyrite smelting - Ducktown, TN after 100 years it is still a mess
4) More smelting Sudbury, Ontario - So bad it was used to train the moon walkers