There are still skeptics about human generated climate change, but according to the best available scientific knowledge, anthropogenic GHGs are firmly believed to be the culprits of global warming. Over 70% of anthropogenic GHGs are generated from combustion of fossil fuel. Therefore, in order to mitigate climate change, a large reduction of fossil fuel use is required. The great human dilemma is that fossil fuel, which generates most anthropogenic GHGs, is the major energy source which has made current economic prosperity possible. Without fossil fuel, modern urban life, as we know, would be impossible.
Intergovernmental Panel on Climate Change. (2007). Climate change 2007: synthesis report. Fourth assessment report of the Intergovernmental Panel on Climate Change.
Stern, N. (2006). The economics of climate change: the Stern review. Cambridge, UK: Cambridge University Press. Retrieved from http://www.hm-treasury.gov.uk/sternreview_index.htm.
*This series of posts is excerpted from my dissertation. I hope these posts help my visitors understand this critical matter better.*