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Air travel is actually not that hard, just very energy inefficient. A turbine will work with almost anything that burns, that is the reason why airplanes use ke
by yk 8y ago
Air travel is actually not that hard, just very energy inefficient. A turbine will work with almost anything that burns, that is the reason why airplanes use kerosene, it is the cheapest fossil fuel. To get green airplanes you just need to replace the kerosene with something else that burns, most vegetable oils should work fine after a bit of refinement.
The real problem is, you need lots of oils and there synthesis and using chemical fuel as energy storage seems a certainly feasible path, however it is again quite a bit more complicated than just drilling a hole in the ground.
- growlist 8y agoThis would imply a vast additional amount of biomass production, which would place its own load on the environment in loss of biodiversity, run off pollution etc.
- baud147258 8y agoAnother externality of bio-fuel is increased cost of food, which could create issues in poorer countries which already have tense food situations.
- growlist 8y agoIndeed, forgot that. Biomass seems such a great idea that I was tremendously disappointed in A-level Geography to find out its downsides.