It's that dihydrogen oxide. It's everywhere. It's in our drinking water and in our toothpaste. It's disposed of in huge quantities by all sorts of industries. Our rivers and lakes are literally AWASH in the stuff.
It's affects on the population are ubiquitous. Intake of dihydrogen oxide can cause bloating and frequent urination. It's even in our food!
Billions of tons of this pollutant flow down the Niagara River and over the falls every single day, and no one does a single constructive thing about it.
I've had it up to HERE with dihydrogen oxide! I think I'll go have a drink.
Actually, dihydrogen monoxide is the proper chemical term. There is a very good web site about this pollutant to be found here:
http://www.dhmo.org/