Closed ncx-gitbot closed 1 year ago
NCX response: A tonne-year is simply a unit of carbon account like a kilowatt hour is to a kilowatt for electricity, a unit of volume over time. While tonne-year accounting may not be used widely today in the voluntary carbon market, it has been supported as an alternative to traditional carbon accounting in the scientific literature for many years. One cannot adequately know the full benefit of a solution without adding in the time or duration term. Fundamentally, tonne-year accounting allows for the delivery of realized impact, not presumed future impact on timescales incongruent with the variability of natural systems. Furthermore, tonne-year accounting allows the direct comparison of benefits of different carbon offsets approaches over many different time scales and technologies.
Commenter Organization: CarbonPlan
Commenter: Danny Cullenward
2021 Deferred Harvest Methodology Section: 9.1
Comment: Ton-year accounting is not aligned with net-zero goals or climate stabilization. See attached comment letter submitted in response to Verra's Proposed Updates to the VCS Program (Feb 2022).
Proposed Change: Clearly label ton-year credits to inform consumer that ton-year credits are inconsistent with net zero goals and temperature stabilization. See comment letter.