Reply #3: My theory:

[cliss]

I believe that because of

a) overpopulation
b) burning fossil fuels
c) decimating our forests

we have stripped away our protective ozone layer. I imagine it like an invisible blanket around the earth, protecting us from harmful UV rays, gamma rays and other nasty ilk floating around.

That nice blanket also kept our weather more stable. Now that it's been stripped away, we are vulnerable to wild weather, storms, skin cancer, all kinds of bad stuff.