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<!-- Over 75% of all [[climate change|greenhouse gas emissions]] are due to burning fossil fuels. --> | <!-- Over 75% of all [[climate change|greenhouse gas emissions]] are due to burning fossil fuels. --> | ||
For the same amount of energy, coal releases about twice as much CO<sub>2</sub> as natural gas | For the same amount of [[energy]], | ||
< | * coal releases about twice as much CO<sub>2</sub> as natural gas | ||
* oil is somewhere in between. | |||
<tab name="See exact numbers" collapsed> | |||
These numbers might be needed for physics or engineering. | |||
{{minor|[[Greenhouse gas]] emissions (CO<sub>2eq</sub>) per unit of energy, for each fuel.}} | |||
{{dp | |||
|<nowiki>coal.ghg_by_energy</nowiki> | |||
|<nowiki>95.35 kg / million btu</nowiki> | |||
|<nowiki>CO2 emissions of burning coal</nowiki> | |||
|<nowiki>https://www.eia.gov/environment/emissions/co2_vol_mass.php</nowiki> | |||
}} | |||
{{dp | |||
|<nowiki>gasoline.ghg_by_energy</nowiki> | |||
|<nowiki>71.30 kg / million btu</nowiki> | |||
|<nowiki>CO2 emissions of burning gasoline</nowiki> | |||
|<nowiki>https://www.eia.gov/environment/emissions/co2_vol_mass.php</nowiki> | |||
}} | |||
{{dp | |||
|<nowiki>natural_gas.ghg_by_energy</nowiki> | |||
|<nowiki>53.07 kg / million btu</nowiki> | |||
|<nowiki>CO2 emissions of burning natural gas</nowiki> | |||
|<nowiki>Does not include the fugitive methane emissions from unburned fuel. Those vary by how the gas is burned.</nowiki><br /><nowiki> | |||
</nowiki><br /><nowiki> | |||
https://www.eia.gov/environment/emissions/co2_vol_mass.php</nowiki> | |||
}} | |||
{{dp | |||
|<nowiki>usa.natural_gas.fugitive_ghg</nowiki> | |||
|<nowiki>176.1 million tonnes / year</nowiki> | |||
|<nowiki>Greenhouse gas CO2eq of fugitive methane leaks from all natural gas infrastructure in the USA</nowiki> | |||
|<nowiki>Environmental Protection Agency (EPA)</nowiki><br /><nowiki> | |||
Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2014</nowiki><br /><nowiki> | |||
https://www.epa.gov/ghgemissions/inventory-us-greenhouse-gas-emissions-and-sinks-1990-2014</nowiki><br /><nowiki> | |||
2016 Complete Report (PDF)</nowiki><br /><nowiki> | |||
Using data from 2014</nowiki> | |||
}} | |||
{{dp | |||
|<nowiki>usa.natural_gas.energy</nowiki> | |||
|<nowiki>27.9 quadrillion btu / year</nowiki> | |||
|<nowiki>U.S. energy consumption from natural gas combustion only</nowiki> | |||
|<nowiki>Environmental Protection Agency (EPA)</nowiki><br /><nowiki> | |||
Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2014</nowiki><br /><nowiki> | |||
https://www.epa.gov/ghgemissions/inventory-us-greenhouse-gas-emissions-and-sinks-1990-2014</nowiki><br /><nowiki> | |||
2016 Complete Report (PDF)</nowiki><br /><nowiki> | |||
Datapoint was found on page 115, from pie chart and line graph, using data from 2014</nowiki> | |||
}} | |||
{{dp | |||
|<nowiki>natural_gas.fugitive_ghg_by_energy</nowiki> | |||
|<nowiki>usa.natural_gas.fugitive_ghg / usa.natural_gas.energy</nowiki> | |||
|<nowiki>Fugitive emissions (CO2eq) of natural gas, per unit energy</nowiki> | |||
|<nowiki>Average based on US datapoints.</nowiki> | |||
}} | |||
{{calc | |||
|coal.ghg_by_energy | |||
|kg / million btu | |||
| | |||
|Coal: | |||
}} | |||
{{calc | |||
|gasoline.ghg_by_energy | |||
|kg / million btu | |||
| | |||
|Oil (gasoline is the most popular fuel obtained from crude oil): | |||
}} | |||
{{calc | |||
|natural_gas.ghg_by_energy + natural_gas.fugitive_ghg_by_energy | |||
|kg / million btu | |||
| | |||
|Natural gas, which also has ''fugitive emissions''{{x|Natural gas is mostly methane (CH<sub>4</sub>) which is ''also'' a [[greenhouse gas]]. So when any unburned fuel leaks into the atmosphere (gas leaks), it also contributes to climate change too.}} taken into account here: | |||
}} | |||
</tab> | |||
===Other pollution=== | ===Other pollution=== |