I bought a home with a radon problem and the fix was under $500 and consisted of nothing more than adequate ventilation in the basement, which was accomplished by drawing air from several points in the basement and forcing it outside via exhaust fan.
As for the oil problem in the Gulf. I’m not saying we shouldn’t so what we can but I do stand by my claim that nature will eventually take car of the problem.
“I do stand by my claim that nature will eventually take car of the problem.”
Sure in 50 to 100 years.