Policy     Economics     Technologies

Carbon sequestration in soils and vegetation in PEF analyses, credible carbon credits?

On behalf of Vinventions, CE Delft and Sevenster Environmental have reviewed the final draft Product Environmental Footprint Category Rules (PEFCR) for wine (version 04) on one specific aspect: the compulsory inclusion of biogenic carbon sequestration in vegetation and soil as additional information in PEF reports for wine and the methodology to be applied for determining the amount of carbon sequestered.

We conclude that this methodology contains several flaws, with respect to both the LCA methodology and scientific calculation rules laid down in the report::
  • Temporary carbon storage in vegetation cannot be included in the PEF, not even under additional information. It should hence be excluded from the PEFCFR.
  • For carbon sequestration a clear time boundary between temporary storage and permanent sequestration needs to be defined, representative and uniform for all product categories falling under PEF policy.
  • Allocation has been elaborated in a negligent way in the draft PEFCR.
  • The prescribed calculation methodology based on the Hénin-Dupuis model is not substantiated, has been included with errors, is incomplete (lacks land management factor P, erosion) and is included without a proper guide for background information and calibration.
  • The two other prescribed calculation methodologies for calculating carbon sequestration in soil and vegetation are meaningless and erroneous, as the issue time frame is dealt with unsatisfactorily.

Authors

Harry Croezen

Delft, November 2016

Carbon sequestration in soils and vegetation in PEF analyses, credible carbon credits?

Further information on this study can be obtained from Harry Croezen

Tweets by @cedelft

Article - Evaluating the environmental impact of debit card payments https://t.co/IfnNwC3p0b
07-12-2017 16:23

Rapport Net voor de Toekomst - scenario's voor investeringskeuzes van netbeheerders in infrastructuren https://t.co/W4mUsLCuZ0
07-12-2017 16:04

Gezamenlijke visie om Omgevingswet, regionale energiestrategie en warmtetransitieplan lokaal gelijk te gebruiken… https://t.co/YwHhzl338d
06-12-2017 16:30

Position paper @CEDelft t.b.v. hoorzitting/rondetafelgesprek Kunststofketen en zwerfafval Tweede Kamer d.d. 30 nove… https://t.co/fLEooSyZL6
30-11-2017 12:32

CE Mailvision - New projects @cedelft, Promising CCU in EU, Tool for aviation charges, Grid for the Future, Biofuel… https://t.co/Mq2XtExZMT
30-11-2017 11:57