Water Scarcity Is in the DPP Framework: Why Carbon-Only Data Won't Be Enough
TL;DR
The EU's DPP data specification methodology reinforces that water use is one of the most relevant impact categories for apparel. Carbon-only measurement is unlikely to satisfy the multi-indicator requirements the DPP framework is building toward.
The EU's newly published DPP data specification methodology reinforces what the Product Environmental Footprint (PEF) framework has long signalled: water use is one of the impact categories that matters most for apparel. For brands that have treated environmental measurement as a carbon-only exercise, the DPP framework is about to change the conversation.
What the Methodology Says About Water
The methodology references the PEF method as the primary framework for calculating product-level environmental impacts under the ESPR. PEF defines 16 impact categories. The report identifies water use as "consistently identified as one of the most relevant for apparel."
This is not a general statement about environmental assessment. It is a specific finding from the preparatory work informing the textile delegated act. Water use is flagged alongside climate change as a priority impact category for the product group that includes most fashion garments.
The methodology also references the AWARE method (Available WAter REmaining) as the recommended approach under the PEF framework's EF 3.0/3.1 characterisation methods. AWARE weights water consumption against regional scarcity factors, producing a figure that reflects actual environmental stress rather than just volume consumed.
Why Volume Alone Is Inadequate
The distinction between total water volume and water scarcity impact is central to understanding why the PEF framework takes this approach. Using 1,000 litres of water in a rain-fed region with abundant freshwater is a fundamentally different environmental proposition from using 1,000 litres in a water-stressed basin in South Asia.
The AWARE method captures this difference. A garment's water scarcity impact depends not just on how much water was used but on where in the supply chain it was used and how stressed those water sources are. For cotton production in particular, the variation between growing regions can be enormous.
Carbon and Water Do Not Always Point the Same Way
One of the most important practical implications of multi-indicator assessment is that the environmental hotspot for carbon and the hotspot for water are not always at the same stage of the supply chain. Manufacturing energy drives carbon. Irrigated fibre production in water-stressed regions drives water scarcity.
A brand that optimises for carbon alone may inadvertently shift sourcing toward regions or processes that worsen water scarcity outcomes. The PEF framework addresses this by requiring assessment across multiple categories, preventing single-metric optimisation from creating blind spots.
What This Means for DPP Compliance
The textile delegated act has not yet been adopted. The specific environmental indicators required in the textile DPP will be defined through the preparatory study process described in the methodology. But the methodology provides strong directional signals.
It states that environmental footprint data should be calculated using PEF methodology. It identifies water use as a priority category for apparel. It references the AWARE method as the recommended characterisation approach. For brands building their data infrastructure now, the direction is clear: measuring carbon footprint alone misses a significant part of the environmental picture.
How ENVRT Approaches Water Scarcity
ENVRT LAB™ generates water scarcity impact alongside climate impact (CO₂e) at the product level, on a cradle-to-gate basis. The water scarcity assessment uses the AWARE method, weighting water consumption by regional scarcity factors to produce a figure that reflects actual environmental stress.
This dual-indicator approach is structurally aligned with what the DPP methodology describes. It produces the multi-indicator product-level data that the PEF framework requires, using the characterisation methods it references.
If you want to understand the water scarcity impact of your products alongside their carbon footprint, get in touch with the ENVRT team.
Frequently asked questions
The PEF framework identifies water use as one of the most relevant impact categories for apparel. The DPP data specification methodology reinforces this. A carbon-only approach is unlikely to satisfy multi-indicator regulatory requirements.
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