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  2. Zero-carbon city - Wikipedia

    en.wikipedia.org/wiki/Zero-carbon_city

    Urban areas involve essential infrastructure for energy, transport, water, food, shelter, construction, public spaces, and waste management. Transforming cities to achieve net zero sustainability means rethinking both supply-side issues (power supplies and transportation) and demand-side issues (reducing use through better urban design and policy.) [4] [8] Key factors in city planning include ...

  3. Sustainable transport - Wikipedia

    en.wikipedia.org/wiki/Sustainable_transport

    Sustainable transport is transportation sustainable in terms of their social and environmental impacts. Components for evaluating sustainability include the particular vehicles used for road, water or air transport; the source of energy ; and the infrastructure used to accommodate the transport ( roads , railways , airways , waterways , canals ...

  4. Alternative fuel - Wikipedia

    en.wikipedia.org/wiki/Alternative_fuel

    Methanol and ethanol fuel are primary sources of energy; they are convenient fuels for storing and transporting energy. These alcohols can be used in internal combustion engines as alternative fuels. Butane has another advantage: it is the only alcohol-based motor fuel that can be transported readily by existing petroleum-product pipeline ...

  5. Sustainable biofuel - Wikipedia

    en.wikipedia.org/wiki/Sustainable_biofuel

    They offer a prospect of increased market competition and oil price moderation. A healthy supply of alternative energy sources will help to combat gasoline price spikes and reduce dependency on fossil fuels, especially in the transport sector. [5] Using transportation fuels more efficiently is also an integral part of a sustainable transport ...

  6. Sustainable energy - Wikipedia

    en.wikipedia.org/wiki/Sustainable_energy

    Various projections of future energy use identify solar PV as one of the main sources of energy generation in a sustainable mix. [64] [65] Most components of solar panels can be easily recycled, but this is not always done in the absence of regulation. [66] Panels typically contain heavy metals, so they pose environmental risks if put in ...

  7. Energy conservation in the United States - Wikipedia

    en.wikipedia.org/wiki/Energy_conservation_in_the...

    Energy usage in transportation and residential sectors (about half of U.S. energy consumption) is largely controlled by individual domestic consumers. Commercial and industrial energy expenditures are determined by businesses entities and other facility managers. National energy policy has a significant effect on energy usage across all four ...