Difference between revisions of "Secondary GHG Effects"
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== Definition == | == Definition == | ||
| − | A '''Secondary GHG Effect''' is an ''unintended change'' caused by a | + | A '''Secondary GHG Effect''' is an ''unintended change'' caused by a [[GHG Project Activity]] in [[GHG Emissions]], removals, or storage associated with a GHG source or sink. |
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| + | Project activities often produce changes in GHG emissions aside from their primary effects—and these are termed secondary effects. As with primary effects, these secondary effects are defined as a difference in GHG emissions between the [[GHG Baseline Scenario]] and the project activity. The baseline scenario used for estimating the secondary effects is the same as that identified for the related primary effect. | ||
Secondary effects are typically small relative to a project activity’s [[Primary GHG Effects]]. In some cases, however, they may undermine or negate the primary effect. Secondary effects are classified into two categories: | Secondary effects are typically small relative to a project activity’s [[Primary GHG Effects]]. In some cases, however, they may undermine or negate the primary effect. Secondary effects are classified into two categories: | ||
Revision as of 22:48, 1 November 2021
Definition
A Secondary GHG Effect is an unintended change caused by a GHG Project Activity in GHG Emissions, removals, or storage associated with a GHG source or sink.
Project activities often produce changes in GHG emissions aside from their primary effects—and these are termed secondary effects. As with primary effects, these secondary effects are defined as a difference in GHG emissions between the GHG Baseline Scenario and the project activity. The baseline scenario used for estimating the secondary effects is the same as that identified for the related primary effect.
Secondary effects are typically small relative to a project activity’s Primary GHG Effects. In some cases, however, they may undermine or negate the primary effect. Secondary effects are classified into two categories:
- One-time effects: Changes in GHG emissions associated with the construction, installation, and establishment or the decommissioning and termination of the project activity.
- Upstream and downstream effects: Recurring changes in GHG emissions associated with inputs to the project activity (upstream) or products from the project activity (downstream), relative to baseline emissions.
Some upstream and downstream effects may involve market responses to the changes in supply and/or demand for project activity inputs or products. Only significant secondary effects, however, need to be monitored and quantified under the GHG Project Protocol. Whether a secondary effect is considered significant depends on its magnitude relative to its associated primary effect and on circumstances surrounding the associated project activity.
