The O-zone layer
 

Yeah i heard americans dont believe in it, is that true?

Swear down, myphys teacher were ramblin on about it.

wtf @ us not believing in O-zone layer.. LMAO.. yeah we do

or the green house effect, some bullshit anyway...
...i wernt listening properly lmao.

The thing causing climate changes worldwide?

werd to the Greenhouse Effect.........i tested that shit out to see it for real.....

i chucked a brick at a greenhouse to see the effect........and the effect was lots of noise and shattered glass :cool: werd

Your teacher is stupid. We believe in the ozone and greenhouse effect....dur.

lmao.. ur teachers stupid lmao lmao lmao.. hahha.. lol damn just hopefully it dont rip apart soon :(

Uh....ya we believe in the ozone layer and how we are destroying it. Greenhouse effect is where certain gases trap the heat from the sun to heat the earth like a greenhouse heats the plants.

What rockets?