Digital Library on Green Mobility

Glossary

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Fossil Fuel

A general term for organic materials formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure in the earth’s crust over hundreds of millions of years. 

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Fuel Cell

Fuel cell technology provides an alternative to lithium-ion battery-based storage, with energy created using atmospheric oxygen and hydrogen. Water is the only waste product in this instance, if you discount the energy expended in extracting, transporting and storing the hydrogen itself. While some fuel cell vehicles do not have batteries onboard, others do feature some form of storage solution to help improve efficiency and range. 

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Fuel Cell Electric Vehicle (FCEV)

This term refers to an EV which uses a hydrogen fuel cell to power its electric motor. The fuel cells create the electricity to power the car. 

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Fugitive Emissions

Emissions that are not physically controlled but result from the intentional or unintentional release of GHGs. They commonly arise from the production, processing, transmission, storage and use of fuels or other substances, often through joints, seals, packing, gaskets, etc. Examples include HFCs from refrigeration leaks, SF6 from electrical power distributors, and CH4 from solid waste landfills. 

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Fugitive Methane Emissions

A type of fugitive emission in which uncombusted natural gas, consisting primarily of methane, escapes into the atmosphere from the natural gas infrastructure system (production, processing, transmission, and distribution). 

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Global Distribution System (GDS)

Computer networks in the travel industry, which empower service providers to carry out travel-related transactions, e.g. book or see real-time information and data about the availability of hotel rooms, flights and other travel services. Common GDS are e.g. Amadeus, Sabre, Travelport.

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Global Warming

The gradual increase, observed or projected, in global surface temperature, as one of the consequences of radiative forcing caused by anthropogenic emissions. 

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Global Warming Potential (GWP)

An index measuring the radiative forcing following an emission of a unit mass of a given substance, accumulated over a chosen time horizon, relative to that of the reference substance, carbon dioxide (CO2). 

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Green Power

A generic term for renewable energy sources and specific clean energy technologies that emit fewer GHG emissions relative to other sources of energy that supply the electric grid. Includes solar photovoltaic panels, solar and thermal energy, geothermal energy, landfill gas, low‐impact hydropower, and wind turbines.

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Greenhouse Effect

Trapping and build-up of heat in the atmosphere (troposphere) near the Earth’s surface. Some of the heat flowing back toward space from the Earth’s surface is absorbed by water vapor, carbon dioxide, ozone, and several other gases in the atmosphere and then reradiated back toward the Earth’s surface.