Lincoln Gordon’s research while affiliated with Resources for the Future and other places

... Furthermore, to seek sustainable and renewable alternative energy sources such as nuclear, solar, and biofuels (Lenzen 2008), (Solangi et al. 2011) and (Demirbas 2009). However, fossil fuels represent over 75% of the world's total energy supply (Chefurka 2007), Fig.1; this makes their substitution improbable shortly. On the other hand, significant concerns exist about combustion pollutant emissions (Cavaliere and de Joannon 2004), such as NOx, CO, CO2, and soot, which have a significant impact on the environment. ...

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Characterization of Biogas-Syngas Turbulent MILD Combustion in the Jet in Hot Co-Flow Burner

... The figure also shows the average growth per year for each type of energy demands as the oil and coal have the same percentage of growth with 0.7% each. Fossil fuel has been a global energy demand, especially when based crude oil has been the raw material for the transportation modes for the past 40 years and it has increased steadily [2]. This growth can explain the increasing level of activity and population of the world. ...

Reference:

Investigation of the emission characteristics of iso-butanol additives on methanol-gasoline blends using spark ignition engine