1. Stabilization wedges: solving the climate problem for the next 50 years with current technologies;Pacala;Science,2004
2. Global energy transformation: a roadmap to 2050,2019
3. Intergovernmental panel on climate change. Fourth Assessment Report. Geneva, Switzerland: Inter-gov- ernmental Panel on Climate Change;Reay,2007
4. Statistical review of world energy june,2006
5. The future of hydrogen,2020