1. Climate Change: Observed Impacts on Planet Earth;Tuckett,2008
2. CO
2
Is Not the Only Gas
3. http://www.wmo.int/pages/prog/arep/gaw/ghg/GHGbulletin.html.
4. http://news.bbc.co.uk/1/hi/sci/tech/3381425.stm.
5. Working Group 1, Chapters 1, 2 and 8,2013