The results show significant differences in emissions in the delivery of one megajoule (MJ) of natural gas across the US, where natural gas delivered to the Pacific region has the highest mean life cycle GHG emissions (13 g CO2e/MJ) and delivery of natural gas to the Northeast US has the lowest mean life cycle GHG emissions (8.1 g CO2e/MJ). [...] The difference in emissions is calculated by subtracting the emissions due to Qatar’s LNG from the emissions due to coal for the same final consumption. [...] For the Lower Bound (Scenario 3), the emissions due to all fuels replacing LNG imports from Qatar proportional to their respective share in the energy mix is calculated by taking the sum of total final consumption of LNG imports from Qatar multiplied by the emissions factor of each fuel multiplied by the share of each fuel in the energy mix. [...] Second, the larger the share of the coal in the energy mix, the more likely it is for coal to replace Qatar’s LNG imports. [...] Given the high share of coal in both the power and industrial sectors in Qatar’s export markets, the model shows that the difference in CO2 emissions is positive under Scenario 3 (the light blue line is above the x-axis for the period 2005 to 2020).
Authors
- Pages
- 33
- Published in
- Egypt
