EU Paris-aligned Benchmarks (PABs) and Climate Transition Benchmarks (CTBs)
In response to the global challenge of climate change and mobilising capital for the transition to a low-carbon economy, the European Union (EU) legislated two climate benchmarks for indexes for financial assets – Paris-aligned Benchmark (PAB) and Climate Transition Benchmarks (CTB).
A climate benchmark is a type of investment benchmark that integrates specific objectives aimed at reducing greenhouse gas (GHG) emissions and supporting the transition to a low-carbon economy. These objectives are based on scientific evidence from the IPCC and are achieved by selecting and weighing underlying constituents. Climate benchmarks are designed to function as labels that can be used to identify indices that improve the ESG transparency of benchmark methodologies and establish standards for the methodology of low-carbon benchmarks.
While both the EU benchmarks – PAB and CTB – share a focus on decarbonisation, they have different thresholds. The former benchmark(PAB) aligns with the Paris Agreement’s objective of keeping the global average temperature increase to below 2°C above pre-industrial levels.
The legislation was completed in July 2020. Read more here  and here .
Companies reporting under CSRD can align their climate and decarbonisation strategies to align with these benchmarks and benefit from higher capital inflows from investors who aim to invest in assets that have clear climate and decarbonisation roadmaps in place.
What is the Paris-aligned Benchmark (PAB)?
Paris-aligned Benchmarks (PABs) are a set of criteria that evaluate the alignment of investment portfolios with the objectives of the Paris Agreement on climate change. The Paris Agreement aims to limit global warming to well below 2 degrees Celsius above pre-industrial levels and to pursue efforts to limit the temperature increase to 1.5 degrees Celsius.
What is the Climate Transition Benchmark (CTB)?
Climate Transition Benchmarks (CTBs) are a new type of benchmark that evaluates the contribution of investment portfolios to the transition to a low-carbon economy. CTBs are designed to measure the alignment of investment portfolios with the objectives of the EU’s Climate Law, which aims to make the EU climate-neutral by 2050. CTBs are a broader concept than PABs and focus on transitioning to a low-carbon economy rather than just limiting global warming.
What are the differences between PAB and CTB?
The main difference between PABs and CTBs is their focus. PABs evaluate the alignment of investment portfolios with the objectives of the Paris Agreement, while CTBs assess their contribution to the transition to a low-carbon economy. The table below compares the two benchmarks on key parameters.