GWP
GWP — Global Warming Potential
kg CO₂-eq, the contribution of greenhouse gases to climate change. EN 15804+A2 reports GWP-total, fossil, biogenic, luluc separately.
Impact Categories
LCA impact categories and EN 15804+A2 alignment
Core and additional impact categories reported in the EN 15804+A2 modulary table. Definition, unit and EN 15804+A2 alignment for each.
ODP
ODP — Ozone Depletion Potential
kg CFC-11-eq, the impact of halocarbons damaging the stratospheric ozone layer.
AP
AP — Acidification Potential
mol H+-eq, contribution of SO₂, NOx and NH₃ emissions causing acid rain to terrestrial acidification.
EP
EP — Eutrophication Potential
In EN 15804+A2 split into three: freshwater (kg P-eq), marine (kg N-eq) and terrestrial (mol N-eq).
POCP
POCP — Photochemical Oxidation
kg NMVOC-eq, contribution to tropospheric ozone and smog formation.
ADP
ADP — Abiotic Resource Depletion
Two sub-indicators: kg Sb-eq (minerals & metals) and MJ (fossil fuels).
CED
CED — Cumulative Energy Demand
MJ of total primary energy demand over the life cycle (renewable + non-renewable).
Blog
All articles →Related reading
- 12 min read
Recovery of organic waste: compost, biogas and open dumping
Organic waste substitutes no product; the credit comes entirely from avoided methane. Open dumping, landfill, composting and biogas compared on ecoinvent 3.12 data.
Read more → - 10 min read
LCA hotspot analysis: finding the biggest impact by contribution
Hotspot analysis shows which process, flow or module the total environmental impact comes from. The three axes of contribution analysis, the Pareto logic, hotspots that shift by impact category, and the move to a reduction scenario.
Read more → - 12 min read
Recovery credits by material: from PET to aluminium
A tonne of recovered aluminium and a tonne of paper do not earn the same credit. The primary and secondary route, the order of magnitude of the credit and the specific trap for each of six materials.
Read more → - 10 min read
Custom impact factors, custom methods and weighting: flexibility without leaving the standard
Your EPD must be computed with EF v3.1; but for R&D, academic work and internal reporting, custom characterisation factors, custom methods and weighting sets are legitimate tools.
Read more → - 10 min read
Carbon neutral, net zero, climate neutral: what the claims actually require
Three terms, three different evidence requirements. Offsetting mechanisms, the permanence problem and where greenwashing begins.
Read more → - 9 min read
Market-based versus location-based electricity emissions: what each one tells you
The same electricity consumption produces two different emission figures. Guarantees of origin, certificates and which figure belongs in an LCA.
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Go deeper
On clca you can bind each method/category to selected impact categories and apply it to your real product portfolio.