A product water footprint is a subset of Life Cycle Assessment (or LCA), which is focused on the potential impacts of a product on water resources.

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Reading the statement, we first consider what a water footprint (WF) represents in relation to Life Cycle Assessment (LCA).
Option evaluation: The claim that a product water footprint is a subset of LCA suggests that WF is encompassed within LCA's scope, specifically targeting the water-related impacts of a product.
Placing WF inside LCA makes sense because LCA is an overarching framework for assessing environmental impacts across the life cycle of a product. Within that framework, water-related issues such as freshwater consumption, water stress, and potential ecological effects can be analyzed as a dedicated subset or impact category.
However, there is a nuance worth noting: some practitioners treat water footprint as a separate methodology or framework that focuses specifically on water use and impacts, while others integrate WF within LCA as one of its impact categories. The statement does not claim WF is the sole or independent framework, only that it is focused on water resources and is a subset of LCA, which aligns with common understanding in many LCA contexts.
Option 1: If interpreted in the sense that WF is encompassed inside LCA as the water-related portion, this interpretation is reasonable and aligns with the idea of LCA containing multiple impact areas, including water.
Option 2: If one expects WF to be entirely independent and not part of LCA, that would be a misconception; while WF can be used as a standalone assessment, it can also be integrated into LCA analyses as the water impact category.
Option 3: The phrase 'focused on the potential impacts of a product on water resources' correctly identifies the core concern of WF—water use and its environmental consequences—making the description accurate in the context of its relationship to LCA.
Option 4: Some critics may argue that WF and LCA differ in method or scope, but the statement remains valid in terms of intent: WF concentrates on water-related impacts within the broader life-cycle perspective.
In summary, the statement characterizes WF as a water-specific assessment that sits within the broader LCA framework, which is a commonly accepted view in many applications of environmental assessment. The emphasis on water resources is consistent with how WF is used to quantify water use and its effects as part of life-cycle thinking.

SSM 3301 (001) Final Exam

A product water footprint is a subset of Life Cycle Assessment (or LCA), which is focused on the potential impacts of a product on water resources.

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SSM 3301 (001) Final Exam

A product water footprint is a subset of Life Cycle Assessment (or LCA), which is focused on the potential impacts of a product on water resources.

View Explanation

Log in for full answers

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