In the link below you will find 5 sources of greenhouse gases emissions in United States, summarize each of these sources...

In the link below you will find 5 sources of greenhouse gases emissions in United States, summarize each of these sources  in three sentances for each . Your sentances MUST encloude:-

1- what greenhouse gas will be preduced in this source.

2- How it can make contanmination and what kind of contanmination.

3- Major event if there are.

 http://www.epa.gov/climatechange/ghgemissions/sources.html

Feel free to use any other website to search BUT please give your sources in the paper thank you