c-c-c-CLIMATE CHANGE!!

Its something that you hear on the news!,on the internet!,and even on some signs!. but what is it?(other than the obvious)

climate change is what happens when the amount of green house gasses in the atmosphere are tampered with.

"well whats a green house gas?" you might say. green house gasses are certain chemicals that act like a one way mirror mirror, they let light in and only a certain amount of air out. an example of a green house gas is carbon dioxide.(CO2) or methane (CH 4).

whats happens is that the suns rays let in light and pass by the atmosphere.and some rays bounce off the earth and go back into space. and it all works out. right? hahah NO! because then some humans let carbon dioxide into the atmosphere and makes a thicker wall of green house gases that make it harder for those rays that bounce off the earth, to leave. so those rays just bounce back and forth, making the earth hot, really hot. and it melts the polar ice caps! oh no the polar bears! (lol)

but then some people hear on the inter webs "uhh, global warming isn't a real thing, Europe had like, the same thing like 100 years ago uhh"

umm not quite. that was regional warming. that happens normaly on its own. but GLOBAL warming, is different.

SOURCEs
 http://www.epa.gov/climatechange/
http://climate.nasa.gov/