the context global energy trends oil market outlook natural gas coal electricity renewable regional outlooks russia an in depth study and development world alternative policy scenario annexes 11 10 9 8 7 5 4 3 2 1 6 12 2004 foreword acknowledgements list of figures 17 tables 23 boxes 26 executive summary 29 39 methodological approach 40 reference 41 government policies measures macroeconomic factors population 43 prices 46 technological developments 51 52 main uncertainties 53 57 demand 58 primary fuel mix 64 sectoral 66 production trade 69 resource availability prospects for international 71 investment 72 related co emissions 74 overview emission 76 77 78 81 82 reserves resources 87 classifying measuring estimates proven 90 turning into 93 105 projections conventional