April marks the arrival of Earth Month, a global period of reflection and action dedicated to environmental protection. For the scientific community, it serves as a critical checkpoint to evaluate the hidden environmental costs of discovery. The very infrastructure that ensures research integrity—high-volume air exchanges, 24-hour climate control, and energy-hungry instrumentation—places laboratories among the most resource-intensive environments on the planet.
Achieving environmental sustainability in laboratories is no longer a peripheral goal; it is a fundamental necessity for lab managers. By integrating sustainable laboratory practices, leaders can reduce operational costs, ensure regulatory compliance, and align their research missions with global conservation efforts.
Immediate actions for energy and water efficiency
The "linear" model of laboratory consumption—take, make, dispose—is shifting toward a circular economy. Lab managers can move beyond awareness and into advocacy by executing these targeted technical adjustments:
- Optimize cold storage setpoints: Transitioning an ultra-low temperature (ULT) freezer from -80°C to -70°C can reduce energy use by 30 percent. This single adjustment maintains sample integrity for most biological materials while significantly lowering the load on the facility’s HVAC system.
- Formalize equipment maintenance: Efficiency gains are lost without routine maintenance. Cleaning condenser coils and defrosting units ensures motors do not overwork. Lab leaders can look to the 2025 Freezer Challenge results for benchmarking, as participants saved over 31 million kWh globally through these simple habits.
- Eliminate single-pass cooling: Replace outdated cooling methods with closed-loop chillers to stop the literal drain of thousands of gallons of water. For steam-jacketed autoclaves, installing water-saving retrofits can reduce water consumption by 75 to 90 percent.
- Audit water purity requirements: High-purity (DI/RO) water is energy-intensive to produce. Managers should enforce "right-sizing" protocols, ensuring that expensive treated water is used only when the application strictly requires it.
Procurement and lab waste reduction strategies
Purchasing power is one of the strongest levers for change. To drive a meaningful reduction in the lab’s carbon footprint, managers should focus on the following:
- Utilize the ACT Label: Treat the ACT Label as a nutrition label for lab products. It provides third-party-verified scores on manufacturing, energy use, and end-of-life impact, helping managers avoid greenwashing during the bidding process.
- Account for Scope 3 emissions: Sustainability now extends to the supply chain. Favoring vendors that provide data on embodied carbon allows labs to report more accurately on their indirect environmental impact.
- Divert plastics from the waste stream: Identify non-contaminated plastic waste, such as pipette tip boxes and shipping materials, that can be managed through specialized rethink waste programs. While sterility often dictates single-use items, circularity is achievable for secondary packaging and office-side lab supplies.
Strengthening lab operations through the Green Labs Digital Summit
To help lab managers navigate these complexities, Lab Manager is hosting the Green Labs Digital Summit on May 12-13, 2026. On these dates, lab professionals, sustainability experts, and industry leaders will gather to explore innovative strategies for creating environmentally friendly facilities.
Participants will engage in discussions on circular economy practices, smarter resource tracking, and the role of digital tools in reducing energy and water use and overall environmental impact. Registering for this free event allows lab managers to transition Earth Month reflections into actionable strategies for May and beyond.
This article was created with the assistance of Generative AI and has undergone editorial review before publishing.
