View source for GHGs for AFVs

[[Category:Done 2018-07-20]] 
<onlyinclude>'''[[Alternative fuel vehicle]]s'''  or '''AFVs''' produce considerably less [[greenhouse gas emission]]s or '''GHGs''' compared to [[gasoline]] vehicles.</onlyinclude> Currently, around 95 % of [[energy]] used by vehicles is derived from crude oil. On a lifecycle basis, natural gas reduces greenhouse gas emissions by an estimated 20-25% compared to conventional (gasoline or diesel) vehicles.<ref name=NGUC/> To get a realistic value for emission, a [[life cycle analysis]] has to be performed. This analysis includes the manufacture of each AFV, transportation of fuel, and infrastructure needed, in addition to the emissions from operating the vehicle. 

In 2010, Canada’s transportation sector contributed to the largest greenhouse emissions by economic sector, 24%.<ref name=NGUC>Natural Gas Use in the Canadian Transportation Sector, “Deployment Roadmap,” 2010. [Online]. Available: http://oee.nrcan.gc.ca/transportation/alternative-fuels/resources/2888 [Accessed on 20 October 2013].</ref> Growth in greenhouse emissions from the transportation sector is usually from medium/heavy duty vehicles, and pickup trucks or sport utility vehicles. 

As you can see in figure 1, emission from AFVs vary dramatically by type (although all are less than the 450 gCO2e/mile for gasoline).<ref name=DOE>Alternative Fuels Data Center: Maps and Data - Greenhouse Gas Emissions by Fuel Type", Afdc.energy.gov, 2018. [Online]. Available: https://www.afdc.energy.gov/data/10741. [Accessed: 13- Jul- 2018].</ref>[[Compressed natural gas]] produces slightly more [[carbon dioxide]] than [[hydrogen]] from [[natural gas]], but [[electric vehicle]]s are the clear winner on this scale. One must also compare [[Comparing gasoline, diesel, natural gas, and electricity prices|price of energy]] and the convenience of the [[alternative fuel vehicle infrastructure]].

[[File:Greenhouse gas emmision by car type.png|700px|thumbnail|center|Figure 1. Comparison of various vehicles and their fuel type, to the amount of greenhouse gases it emits.<ref name=DOE/>]]

==For Further Reading==
*[[Alternative fuel vehicle]]
*[[Greenhouse gas emission]]
*[[Gasoline]]
*[[Natural gas]]
*[[Electric vehicle]]
*Or explore a [[Special:Random|random page]]
==References==
{{reflist}}
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