Costain

Costain, a UK-based construction firm, is committed to reducing its environmental impact, with significant emissions reduction targets. In 2024, the company reported total greenhouse gas emissions of approximately 278.2 million kg CO2e. This breaks down into approximately 4.8 million kg CO2e for Scope 1 emissions and about 0.9 million kg CO2e for Scope 2 emissions. Scope 3 emissions accounted for the largest portion, at approximately 272.6 million kg CO2e.

Costain has set ambitious climate goals, aiming for net zero across its Scope 1, 2, and 3 emissions by 2045, with a 2021 baseline year. As part of this commitment, the company aims to reduce directly controlled absolute Scope 1 and 2 greenhouse gas (GHG) emissions by at least 90% by 2035. Furthermore, they are working towards reducing indirect absolute Scope 3 GHG emissions by 90% across the value chain by 2045.

For near-term action, Costain has committed to reducing absolute Scope 1 and 2 GHG emissions by 42% by 2030, also from a 2021 base year. A parallel commitment is to reduce absolute Scope 3 GHG emissions by 42% within the same timeframe. These targets are recognised by the Science Based Targets initiative (SBTi) as consistent with limiting warming to 1.5°C.

Earlier reports show emissions data from 2015 onwards. For example, in 2020, Costain reported Scope 1 emissions of approximately 12.4 million kg CO2e and Scope 2 emissions of approximately 1.1 million kg CO2e, with Scope 3 emissions at about 18.6 million kg CO2e. In 2018, Scope 1 emissions were approximately 15.9 million kg CO2e and Scope 2 emissions were about 0.8 million kg CO2e. The company has also previously reported reductions in non-operational carbon emissions. Costain is also a signatory to the Climate Pledge.