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  2. Carbon-neutral fuel - Wikipedia

    en.wikipedia.org/wiki/Carbon-neutral_fuel

    Carbon-neutral fuel is fuel which produces no net-greenhouse gas emissions or carbon footprint. In practice, this usually means fuels that are made using carbon dioxide (CO 2 ) as a feedstock . Proposed carbon-neutral fuels can broadly be grouped into synthetic fuels , which are made by chemically hydrogenating carbon dioxide, and biofuels ...

  3. Climate change mitigation - Wikipedia

    en.wikipedia.org/wiki/Climate_change_mitigation

    Overall, food accounts for the largest share of consumption-based greenhouse gas emissions. It is responsible for nearly 20% of the global carbon footprint. Almost 15% of all anthropogenic greenhouse gas emissions have been attributed to the livestock sector. [105] A shift towards plant-based diets would help to mitigate climate change. [112]

  4. Sustainable energy - Wikipedia

    en.wikipedia.org/wiki/Sustainable_energy

    Producing one tonne of hydrogen through this process emits 6.6–9.3 tonnes of carbon dioxide. [172] While carbon capture and storage (CCS) could remove a large fraction of these emissions, the overall carbon footprint of hydrogen from natural gas is difficult to assess as of 2021 [update] , in part because of emissions (including vented and ...

  5. Greenhouse gas emissions from agriculture - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_emissions...

    In the context of global GHG emissions, food production within the global food system accounts for approximately 26%. Breaking it down, livestock and fisheries contribute 31%, whereas crop production, land use, and supply chains add 27%, 24%, and 18% respectively to the emissions. [51] A 2023 study found that a vegan diet reduced emissions by ...

  6. Biomass briquettes - Wikipedia

    en.wikipedia.org/wiki/Biomass_briquettes

    Compared to fossil fuels, the briquettes produce low net total greenhouse gas emissions because the materials used are already a part of the carbon cycle. [ 2 ] One of the most common variables of the biomass briquette production process is the way the biomass is dried out.

  7. Life-cycle greenhouse gas emissions of energy sources

    en.wikipedia.org/wiki/Life-cycle_greenhouse_gas...

    As of 2020 whether natural gas should be used as a "bridge" from coal and oil to low carbon energy, is being debated for coal-reliant economies, such as India, China and Germany. [23] Germany, as part of its Energiewende transformation, declares preservation of coal-based power until 2038 but immediate shutdown of nuclear power plants, which ...

  8. Emissions trading - Wikipedia

    en.wikipedia.org/wiki/Emissions_trading

    Emissions fees or environmental tax is a surcharge on the pollution created while producing goods and services. [53] For example, a carbon tax is a tax on the carbon content of fossil fuels that aims to discourage their use and thereby reduce carbon dioxide emissions. [3] The two approaches are overlapping sets of policy designs.

  9. Vegetable oils as alternative energy - Wikipedia

    en.wikipedia.org/wiki/Vegetable_oils_as...

    Algae have very high growth rates compared to plants normally used to produce vegetable oil. Algae could potentially produce much more oil per area of land than current farming methods. [26] Producing vegetable oil this way could result in reduced deforestation and less competition for food production land.