Z1-J.C.

__The Greenhouse Effect__ __http://enviornment.Nationalgeographic.com/enviornment/global-warming/gw-overview-interactiehttml?refeer=epals__
The greenhouse effect is heat from the Earth radiates outward from space. But greenhouse gases prevent most heat leaving the Earth's atmosphere.

Thanks for adding notes on my document. Hi! -Double H Hi, nice work. -Double H. **Wow! good job- Tori** __**The Sun**__ __Greenho____use gases and global warming__ Humans DO play a role in global warming. As we find the sinks( places where we find a lot of plankton and other dead organisms) and burn the fossil fuels we add Carbon Dioxide into the atmosphere. Most greenhouse gases are C02, CH4 and N20. They each have their own heat trapping abilities.
 * When the suns radiation reaches our atmosphere some rays reflect back out to space. While some is absorbed by the Earth. This means the surface heats up.**



__Step 5 Initiative__






 * Log Cabins
 * Demand for lumber

hey john! really good stuff! just remember to explain the pictures!---Laurel Great job John! You did really, really good! <3 Sam