NAT.B14 Scope 1 and 2 greenhouse gas emissions
About the data
Biodiversity and climate change are heavily interlinked (CBD, 2009), with conversion and degradation of ecosystems leading to increases in GHG emissions. Subsequently, the effects of climate change are driving further biodiversity loss through increased risk of extinctions and extreme weather events. As such, this indicator focuses on companies’ emissions reductions in line with a 1.5- degree trajectory as recommended by the Paris Agreement. Furthermore, the indicator is aligned with the SBTi’s interim target to reduce value chain GHG emissions by 50% by 2030, in accordance with sectoral ambitions, and by 90-95% by 2050, in accordance with sectoral ambitions by 2030.
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.
Formula
score = (x) -> if x == "Yes" 10 else 0 weights = [0.25, 0.25, 0.25, 0.25] scope_1_n_2_ghg_emissions = [reductions, targets, targets_reporting, alignment] weights.reduce((weighted_sum, weight, index) -> weighted_sum + weight*score(scope_1_n_2_ghg_emissions[index]) , 0)
