ncx-gitbot
commented
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: Green Assets
Commenter: Jonathan Pomp, CF, RPF
2021 Deferred Harvest Methodology Section: No Section Indicated
Comment: Tonne-year accounting is currently not supported by long-term climate change mitigation research and shouldn’t be added to the VCS program without extensive research regarding how the method provides real and additional GHG emissions reductions consistent with established high quality carbon offset quantification methodologies and internationally published climate goals.
Proposed Change: Additional language clarifying some of the key concepts of carbon offsets and how tonne-year accounting incorporates those principles should be required before adoption.