Footnotes: Annex - review of literature on impact of shale gas on global emissions
1. Assumptions in this scenario included a more ambitious policy for gas use in China, lower growth of nuclear power, greater production of unconventional gas and lower gas prices. Underlying the assumption that unconventional gas production increases, would be a view that barriers to production are largely overcome and that increased supplies become available in other regions at costs comparable to those in North America.
2. The New Policies scenario took account of existing government policies and declared future intentions as of mid-2010.
3. National Energy Modelling System, Resources for the Future version.
4. BAEGEM, G- CAM, MESSAGE, REMIND, WITCH.
5. This scenario is not presented as a likely case, but more like an upper bound to test implications.