1 Subjects: “...Fossil fuel technologies...”

2 Subjects: “...fossil fuels...”

3 Subjects: “...fossil fuel...”

4 “...-free environment and an evident target regarding the minimization of fossil fuel usage. Therefore, much...”

5 “... at the sustainable future transportation of people and goods. A reduction in burning fossil fuel and technological...”

6 “... of Tehuantepec to examine the political, social, and ecological dimensions of moving from fossil fuels to wind...”

7 “..., fossil fuels, and biomass burning leads to pollution levels being especially high in some urban areas...”