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Chapter 3 - Coggle Diagram

- - - - premise Python script
        (needs ecoinvent license)
    - - Foreground systems
        [TBC]
    - - Background systems
        Relating to broader context within which the building sits (e.g. electricity grid composition, material production methods, end of life recycling practices, etc.)
  - - - End-of-life ('avoided burden') method
        Looks at net scrap/material flows; prioritises recycleability over recycled content
      - Cut-off ('recycled content') method
        Doesn't consider EoL; increasing upfront recycled content results in reduced EC
    - - End-of-life ('0:100') method
        Gives all credit for reuse to second life, except slight discount equal to refurbishment emissions
        
        Upfront EC material factor = (typical material factor (incl. recycled content) - emissions for refurbishment) * yield factor
      - Market-based method
        EoL burden and reuse credit shared between reused content (inputs) and outputs by a market allocation factor
      - Multiple reuse ('n lives') method
        EC shared equally across n lives, the number of times a product is (re)used before recycling
  - - - Table C.1 for core environmental impact categories and indicators
      - Table C.2 for additional impact factors
- - - - [Also, cumultive action/duration (i.e. emissions earlier have longer to act/cause harm)]
      - [Is it proportional to how much of total carbon budget is remaining, or how much of that year's annual budget is remaining (following different annual budget allocation trajectories)?]