Biogen

Carbon per million dollars of revenue. The legacy industry-standard reference (CDP, MSCI). Useful for cross-sector context, but distorted by margin — high-margin firms appear artificially efficient. Read alongside the operational and asset intensities for the full picture.

OpEx (operating expenditure) is the running cost of the business — staff, services, energy, materials. This shows how carbon-intensive operations are per million dollars of spend. Removes the margin distortion that revenue-based ratios introduce.

EVIC (Enterprise Value Including Cash) is the firm's total capital footprint — equity + debt + cash + minority interest. The EU's standard intensity measure (SFDR PAI 3) — answers: how much carbon does each million of capital deployed in this business produce?

PP&E (Property, Plant & Equipment) plus leased real-estate assets is the firm's physical infrastructure on the balance sheet. This shows the carbon intensity of that physical footprint — uses Scope 1+2+3 for consistency with the other headline intensities. Surfaces stranded-asset risk for asset-heavy firms.

• · Puro.earth Registry
• · berkeley_voluntary_registry
• · car

Biogen marked 10 years of sourcing 100% renewable electricity in all markets where we operate (committed 2014, joined RE100 in 2015). To complement RECs, entered multi-year direct hydropower contracts (2020) for Cambridge and Solothurn. In 2024, entered two new VPPAs (for three total) and Liberty Solar VPPA (~100 MW project, Biogen 20 MW position) came online. Once all three VPPAs are operational, they are expected to cover 100% of electricity use across North America.

To address residual emissions and achieve net-zero market-based Scope 2 emissions, Biogen invested in permanent carbon removals via biochar projects. Biochar is a charcoal-like material created by burning carbon-rich biomass such as agricultural waste in a low-oxygen environment. Purchased 45 tCO2e of CORC 100+ credits certified by Puro.earth to offset municipal steam.

• Green chemistry and sustainable lab operations

  100% of labs My Green Lab certified, with 57% Green-level (highest). Working to advance a Development and Commercialization Scorecard for small molecule assets to standardize evaluation of process improvements on efficiency, GHG emissions, waste, and patient safety. Greener chemistry principles: safer processes, reduced solvent use, efficient conversion of key materials.

• Fleet electrification

  EV and hybrid options available in countries where employees use corporate fleet vehicles. In 2024 added more than a dozen new EV chargers in the U.S. alone for fleet, employees, and visitors.

• Sustainable packaging and product stewardship

  Purchased new equipment for in-house prototyping of more sustainable cartons, leaflets, instructions for use. Evaluating monolayer blisterpack films (eliminating PVC content), paper bottle and cap closures, and 100% biodegradable trays from potato starch to replace plastic molded trays. Exploring alternatives to single-use injectors.

• Operational energy efficiency and end-of-life equipment replacement

  Multi-pronged approach to reduce Scope 1: promoting greater efficiency when retiring equipment such as boilers, working to eliminate certain refrigerants, ensuring minimum efficiency standards for priority facilities. Achieved 16% reduction in Scope 1 since 2019 baseline. Examples: RTP chiller software/hardware upgrades avoided new chiller capex; Baar Switzerland air-source heat pump cut natural gas 96% vs 2023. Since 2019, reduced CO2 by 10,421 metric tons.

• Supplier engagement on renewables and SBTi targets

  CLEAN (Conscious Logistic Environment Action Network) initiative incorporates environmental impacts in supplier decisions. As of Q1 2025, 56% of top 50% of suppliers by spend pledged to use 100% renewable electricity (more than double prior year). More than 37% of top 80% of suppliers by spend have set or pledged to set science-based climate targets verified by SBTi (16% YoY increase). Enhanced use of EcoVadis to assess supplier programs.