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  2. Fossil fuel - Wikipedia

    en.wikipedia.org/wiki/Fossil_fuel

    Fossil fuels have been important to human development because they can be readily burned in the open atmosphere to produce heat. The use of peat as a domestic fuel predates recorded history. Coal was burned in some early furnaces for the smelting of metal ore , while semi-solid hydrocarbons from oil seeps were also burned in ancient times, [ 29 ...

  3. Hydrogen production - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_production

    Methods to produce hydrogen without the use of fossil fuels involve the process of water splitting, or splitting the water molecule (H 2 O) into its components oxygen and hydrogen. When the source of energy for water splitting is renewable or low-carbon, the hydrogen produced is sometimes referred to as green hydrogen .

  4. Extraction of petroleum - Wikipedia

    en.wikipedia.org/wiki/Extraction_of_petroleum

    Petroleum is a fossil fuel that can be drawn from beneath the Earth's surface. Reservoirs of petroleum are formed through the mixture of plants, algae, and sediments in shallow seas under high pressure. Petroleum is mostly recovered from oil drilling. Seismic surveys and other methods are used to locate oil reservoirs.

  5. World energy supply and consumption - Wikipedia

    en.wikipedia.org/wiki/World_energy_supply_and...

    Energy production and consumption play a significant role in the global economy. It is needed in industry and global transportation. The total energy supply chain, from production to final consumption, involves many activities that cause a loss of useful energy. [3] As of 2022, energy consumption is still about 80% from fossil fuels. [4]

  6. Greenhouse gas emissions - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_emissions

    Greenhouse gas emissions can be divided into those that arise from the combustion of fuels to produce energy, and those generated by other processes. Around two thirds of greenhouse gas emissions arise from the combustion of fuels. [107] Energy may be produced at the point of consumption, or by a generator for consumption by others. Thus ...

  7. Abiogenic petroleum origin - Wikipedia

    en.wikipedia.org/wiki/Abiogenic_petroleum_origin

    The Gravberg-1 well only produced 84 barrels (13.4 m 3) of oil, which later was shown to derive from organic additives, lubricants and mud used in the drilling process. [ 32 ] [ 33 ] [ 34 ] Kudryavtsev's Rule has been explained for oil and gas (not coal)—gas deposits which are below oil deposits can be created from that oil or its source rocks.

  8. Climate change - Wikipedia

    en.wikipedia.org/wiki/Climate_change

    Fossil fuel use can be phased out by conserving energy and switching to energy sources that do not produce significant carbon pollution. These energy sources include wind, solar, hydro, and nuclear power. [25] Cleanly generated electricity can replace fossil fuels for powering transportation, heating buildings, and running industrial processes ...

  9. Methane emissions - Wikipedia

    en.wikipedia.org/wiki/Methane_emissions

    [1] [2] During 2019, about 60% (360 million tons) of methane released globally was from human activities, while natural sources contributed about 40% (230 million tons). [3] [4] Reducing methane emissions by capturing and utilizing the gas can produce simultaneous environmental and economic benefits. [1] [5]