Showing 221 - 240 results of 848 for search '"fossil fuels"', query time: 0.09s Refine Results
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    Doctoral thesis
    Published in 2018
    Repositorio Séneca: repositorio Uniandes

    ... caused by the use of fossil fuels, has generated extensive research and usage of cleaner alternative...
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  9. 229
    Trabajo de grado de pregrado
    Published in 2017
    Repositorio Séneca: repositorio Uniandes

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  10. 230
    Trabajo de grado de pregrado
    Repositorio Séneca: repositorio Uniandes

    ...The excessive use of fossil fuels that generate greenhouse gases and that are increasingly...
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    Published in 2015
    Repositorio Repositorio UIS
    ...In recent years biofuels have been studied as a good alternative instead of fossil fuels. Jatropha...
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  15. 235
    Part of book
    Repositorio Biblioteca Digital Universidad Externado de Colombia

    ...Natural gas is an energy source among fossil fuels (oil, coal and natural gas) with less impact...
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    Article of journal
    Repositorio Universidad Nacional de Colombia

    ... they are cheaper and less contaminant of the environment than the currently used, non-renewable fossil fuels. Due...
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