Impacts on nature can be broadly described as changes in the state of ecosystems and species, resulting from human activity, occurring because of both direct and indirect drivers of biodiversity loss (IPBES, 2019). The benefits provided by biodiversity are essential to human wellbeing. Yet despite past and current efforts, biodiversity continues to deteriorate and could reach a disastrous tipping point under business-as-usual conditions. This is becoming a major concern for corporate activity, and there is growing demand for companies to disclose reliable data on this topic. However, according to the Climate Disclosure Standards Board (CDSB, 2021), this is currently no common practice and only around 10% of companies (CDSB, 2020) report high-level commitments and some relevant metrics. Disclosure will play a key role in achieving global biodiversity targets and in triggering the systemic changes required to do so.
A note on the scoring system
Wikirate uses a standardized 10-point scoring system to enable comparison of company scores across different benchmarks. In the Nature Benchmark, companies can earn 1 point per indicator, which are then added together and calculated as a percentage of the total score for a measurement area (MA) to determine the final score for the MA. The overall Wikirate score is calculated by combining these scores with the appropriate weightings, and converting them to a 10-point scale. For instance, if a company achieves a final score of 50, the corresponding Rating will be 5.
score = (x) -> if x == "Yes" 10 else if x == "Partially" 5 else 0 weights = [0.25, 0.125, 0.125, 0.25, 0.25] assessments_of_impacts_on_nature = [impacts_on_nature, impacts_on_upstream_value_chain, impacts_on_downstream_value_chain, impacts_on_stakeholder, impacts_on_nature_including_biodiversity] weights.reduce((weighted_sum, weight, index) -> weighted_sum + weight*score(assessments_of_impacts_on_nature[index]) , 0)