Difference between revisions of "GHG Emission Factor"
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== Definition == | == Definition == | ||
| − | A '''GHG Emission Factor''' is a factor that converts activity data into GHG emissions data | + | A '''GHG Emission Factor''' is a factor that converts activity data into GHG emissions data<ref>WRI, Greenhouse Gas Protocol</ref> |
Two types of emission factors can be used for calculating emissions associated with a material or product: | Two types of emission factors can be used for calculating emissions associated with a material or product: | ||
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* Life cycle emission factors, which include emissions that occur at every stage of a material/product’s life, from raw material acquisition or generation of natural resource to end of life | * Life cycle emission factors, which include emissions that occur at every stage of a material/product’s life, from raw material acquisition or generation of natural resource to end of life | ||
* Cradle-to-gate (sometimes referred to as “upstream”) emission factors, which include all emissions that occur in the life cycle of a material/product up to the point of sale by the producer. | * Cradle-to-gate (sometimes referred to as “upstream”) emission factors, which include all emissions that occur in the life cycle of a material/product up to the point of sale by the producer. | ||
| + | |||
| + | == Example == | ||
| + | * kg CO2 emitted per liter of fuel consumed, or | ||
| + | * kg CO2 emitted per kilograms of material produced | ||
== References == | == References == | ||
Revision as of 13:11, 27 October 2021
Definition
A GHG Emission Factor is a factor that converts activity data into GHG emissions data[1]
Two types of emission factors can be used for calculating emissions associated with a material or product:
- Life cycle emission factors, which include emissions that occur at every stage of a material/product’s life, from raw material acquisition or generation of natural resource to end of life
- Cradle-to-gate (sometimes referred to as “upstream”) emission factors, which include all emissions that occur in the life cycle of a material/product up to the point of sale by the producer.
Example
- kg CO2 emitted per liter of fuel consumed, or
- kg CO2 emitted per kilograms of material produced
References
- ↑ WRI, Greenhouse Gas Protocol
