Stage 1 reviews

Stage 1 reviews are undertaken at the start of a project and are designed to ensure that the choice of metrics, proposed methodologies to quantify each metric and sampling strategy are appropriate as well as permanence, additionality, and leakage issues have been properly addressed.  The reviews cost £2000 and are completed within 3 weeks. Completing a review at this stage ensures that the project developer can proceed with the investment needed to implement and monitor the project and know that when they submit the data for their biodiversity claim that it won’t be rejected on the grounds that the metrics, methods or survey strategy were wrong or lack of additionality, permanence or leakage issues:

Stage 2 reviews

Stage 2 reviews are completed at each verification event when the developer wants to make a clain about how much biodiversity gain hs been achieved. A stage 2 review is a much more extensive than the stage 1 review and will cost £5000 and be completed within 6 weeks. The review will require the inclusion of specialists drawn from a panel of experts for each of the taxa to audit in the following ways:

  • Recalculation of sample data for each metric to compare against interim calculations made by the client
  • Recalculating the estimates for each metric
  • Checking samples of audio data identifications
  • Checking samples of video or photographic data identifications
  • Checking lab quality authorisations
  • Other methods likely to produce information as to the accuracy of the data provided

The output from this review will be a short document explaining how the data and claims were audited and one of two conclusions:

  • The data provided support a claim of an x% increase in biodiversity across y hectares
  • The data provided do not support a claim of an x% increase in biodiversity across y hectares and in the reviewers’ opinion a claim for z% increase is more justifiable

A questionnaire is being developed for stage 2 reviews and will be completed and ready to accept applications from October 2023.

However, much of the information will need to be submitted in a digital Biodiversity Claims Folder that will contain the following information:

  • Description of the methods used to collect data for each taxa
  • Raw data from each taxa for each replicate
  • Dates, times and relevant environmental data that might affect the data (e.g heavy rain for bird surveys, visibility for fish surveys etc)
  • Identity and credentials of individuals involved in data collection and survey management
  • Calculations for each taxa including any interim stages in the calculations.
  • Calculations made to estimate overall biodiversity change.

The output from this review will be a short document explaining how the data and claims were audited and one of two conclusions:

  • The data provided support a claim of an x% increase in biodiversity across y hectares.
  • The data provided do not support a claim of an x% increase in biodiversity across y hectares and in the reviewers’ opinion a claim for z% increase is more justifiable.

This certificate can be referenced in external communications about the biodiversity gains achieved or it can be used by registries to issue and retire biodiversity credits.  If the latter then only 80% of the credits generated by the verification event can be issued, with the remaining 20% used as a buffer for force majeure events that might affect biodiversity credits issued.

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