How can clean air kill you?

Question

When its so clean it allows the suns rays to heat the Earth...

http://www.dailytech.com/Europes+Warming+Attributed+to+Cleaner+Air+Not+Climate+Change/article12371.htm

Answer 1

Plant more trees.

Answer 2

so what do you suggest we do? pollute the air more than we already are? did you know that it accounts to 40 percent of deaths worldwide?!http://www.sciencedaily.com/releases/200...

Answer 3

Don't inhale too much Lysol or Mr. Clean fumes.

Answer 4

your body might be use to bad and air and have a bad reaction to it .