The Environmental Footprint (EF) is part of the GSES Sustainable Product Footprint certification. The EF is based on existing life cycle assessment (LCA) standards: ISO14040, ISO14044, PEF, ISO14025 and EN15804.

The following LCA indicators (Cradle to Gate) are measured and registered in GSES’ EF:

• Global warming potential (kg CO2);
• Freshwater use (l fresh water);
• Acidification Potential (mol H+ eq)
• Energy, primary, non-renewable use (MJ)