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name: "grad-sustainability" description: "Apply sustainability frameworks (triple bottom line, SDGs, ESG, circular economy) to evaluate whether strategies balance economic, social, and environmental dimensions. Use this skill when the user needs to assess ESG performance, design circular economy strategies, align business models with SDGs, or when they ask 'is this strategy truly sustainable', 'how do we measure ESG impact', 'what does a circular business model look like', or 'how do we avoid greenwashing'." metadata: category: "WP-34 跨學科/新興" tags: ["sustainability", "ESG", "SDGs", "circular-economy", "triple-bottom-line", "doughnut-economics", "cradle-to-cradle"]

Sustainability

Overview

Sustainability requires simultaneous pursuit of economic prosperity, social equity, and environmental integrity. Modern frameworks include the triple bottom line (Elkington), the UN Sustainable Development Goals (SDGs), ESG (Environmental, Social, Governance) criteria for investors, and circular economy principles that eliminate waste by designing for reuse, repair, and regeneration.

When to Use

• Evaluating whether a business strategy, product, or policy is genuinely sustainable
• Designing circular economy or cradle-to-cradle business models
• Mapping organizational activities to SDGs for reporting or strategy alignment
• Assessing ESG performance and identifying greenwashing risks

When NOT to Use

• When the analysis is purely financial without sustainability dimensions
• When short-term crisis response requires setting aside long-term sustainability
• When the scope is narrowly environmental without social or economic integration

Assumptions

IRON LAW: Sustainability requires simultaneous consideration of economic,
social, AND environmental dimensions — optimizing one at the expense
of others is NOT sustainable development.

Key assumptions:

1. Planetary boundaries set non-negotiable ecological limits (Rockstrom et al.)
2. Social foundations set minimum thresholds for human well-being (Raworth's doughnut)
3. Linear "take-make-dispose" models are inherently unsustainable at scale
4. Sustainability is a dynamic process, not an end state — continuous improvement is required

Methodology

Step 1: Define the Scope and System Boundary

Identify what is being assessed (firm, product, policy, supply chain), the time horizon, and relevant stakeholders across all three dimensions.

Step 2: Assess the Three Dimensions

Dimension	Key Questions	Frameworks
Economic	Is value creation viable long-term? Who captures value?	Business model canvas, shared value
Social	Are workers, communities, and users treated equitably?	SDGs 1-5, 10, 16; human rights due diligence
Environmental	Are planetary boundaries respected? Is resource use circular?	SDGs 6-7, 12-15; life cycle assessment; circular economy

Step 3: Identify Trade-offs and Synergies

Map where the three dimensions reinforce each other (synergies) and where they conflict (trade-offs). Assess whether trade-offs are being managed transparently or hidden.

Step 4: Evaluate Against Standards and Design Interventions

Benchmark against relevant frameworks (GRI, SASB, TCFD, EU Taxonomy) and design interventions that move toward circular, regenerative models.

Output Format

## Sustainability Assessment: [Context]

### Scope Definition
- Subject: [firm/product/policy/supply chain]
- Time horizon: [short/medium/long-term]
- System boundary: [what is included/excluded]

### Three-Dimension Assessment
| Dimension | Current State | Key Metrics | Rating |
|-----------|--------------|-------------|--------|
| Economic | [description] | [metrics] | [strong/adequate/weak] |
| Social | [description] | [metrics] | [strong/adequate/weak] |
| Environmental | [description] | [metrics] | [strong/adequate/weak] |

### SDG Alignment
| SDG | Relevance | Contribution | Gap |
|-----|-----------|-------------|-----|
| [SDG #] | [why relevant] | [current contribution] | [what is missing] |

### Trade-offs and Synergies
- Synergies: [where dimensions reinforce each other]
- Trade-offs: [where dimensions conflict]
- Hidden externalities: [costs shifted to others or the future]

### Circular Economy Assessment
- Current model: [linear / partially circular / circular]
- Waste streams: [key waste and resource loss points]
- Circularity opportunities: [reuse, repair, remanufacture, recycle]

### Recommendations
1. [Intervention addressing the weakest dimension]
2. [Circular economy redesign opportunity]
3. [Reporting and transparency improvement]

Gotchas

• The triple bottom line was retracted by its creator Elkington (2018) because companies used it for accounting, not transformation — use it critically
• ESG ratings vary wildly across providers — do not treat any single rating as objective truth
• "Net zero" claims often rely on offsets rather than actual emission reductions — scrutinize the pathway
• Circular economy is not just recycling — it requires redesigning products, business models, and supply chains from the start
• SDG alignment is not SDG impact — many firms claim alignment without measurable contribution
• Doughnut economics (Raworth) sets both a ceiling (planetary boundaries) and a floor (social foundation) — traditional sustainability often ignores the floor

References

• Elkington, J. (1997). Cannibals with Forks: The Triple Bottom Line of 21st Century Business. Capstone.
• Raworth, K. (2017). Doughnut Economics: Seven Ways to Think Like a 21st-Century Economist. Chelsea Green.
• Ellen MacArthur Foundation. (2015). Towards a Circular Economy: Business Rationale for an Accelerated Transition.