Sport sustainability metrics

Declare period, boundary, denominator, data source and adjustment rules before evaluating a measure.

Not applicable; baseline design is the subject of this method.

A consistent baseline can still be unsuitable for comparison with another venue.

Scope 1, 2 and material Scope 3 inventory with a fixed boundary; offsets reported separately.

Previous operating year using the same organizational boundary.

Event mix, attendance, touring logistics and electricity factors can change between years.

Capture interval-meter data and align peaks with show, kitchen, HVAC and charging schedules.

Typical peak for the same event class and season.

Peak demand depends on interval length and simultaneous loads; it is not total energy.

Define included trip legs, distance source, occupancy and factor set before calculation.

Previous event using the same boundary.

International and multi-purpose trips create attribution choices that must be disclosed.

Compare forecast arrivals and departures by time band with delivered transport capacity and crowd constraints.

Normal service capacity for the same time window.

Scheduled capacity may differ from delivered service; exit waves are uneven.

Survey a representative sample and reconcile it with transit counts, ticket origin and parking occupancy.

Comparable event class and catchment.

Self-reported modes and multi-leg trips require a clear primary-mode rule.

Weigh preparation waste, unsold food and plate waste separately, divided by covers served.

Median of comparable menus and events.

Hospitality, concessions and staff catering have different profiles.

Model fixture demand against the declared code baseline, then reconcile with metered operating data.

EPAct 1992 fixture baseline used in the venue’s LEED disclosure.

Design-model reduction is not the same as actual annual consumption.

Account Scope 1, 2 and 3 including spectator travel, then compare with a declared reference methodology.

Average footprint of London 2012 and Rio 2016 as used by Paris 2024.

Cross-Games comparison is sensitive to geography, venue construction, attendance and travel assumptions.

Estimate ingredient and supply-chain emissions per served meal using a consistent food LCA method.

Average French meal comparator reported by Paris 2024 / IOC.

Menu mix, portion size, agricultural datasets and waste assumptions change the result.

Reconcile metered electricity with supplier contracts and recognized attribute instruments.

Total purchased electricity in the reporting period.

Procurement share does not equal on-site generation or reduced electricity demand.

Count issued and returned units per event; track losses and washing rejects.

Single-use equivalent system for the same beverage volume.

Lifecycle benefit depends on material, wash energy, transport and achieved reuse cycles.

Use stratified sampling by ticket geography, session and entrance; document weighting.

Prior comparable event survey.

Low response and digital-only sampling can bias toward highly engaged spectators.

Inventory temporary assets by material, owner and post-event destination before procurement.

Conventional one-event procurement with disposal at strike.

Mass does not capture toxicity or embodied carbon; next-use claims need post-event evidence.

Reconcile electricity procurement evidence to consumption and waste tickets to destination.

Fixed annual electricity consumption and waste destination categories.

Renewable procurement is not energy efficiency; zero landfill does not identify recycling versus energy recovery.

For every headline metric disclose measured versus estimated shares, factor year, boundary and main sensitivity.

Same metric using the previous methodology version.

Uncertainty can be asymmetric and cannot always be reduced to one percentage.

Separate base load from event load and normalize by floor area and attendance.

Weather-normalized prior season.

Mixed-use venues and extreme event loads make one denominator insufficient.

Use verified weights for reuse, recycling, organics, energy recovery and landfill.

Previous event series with the same destination definitions.

Diversion rate can overstate circularity when energy recovery is grouped with recycling.

Meter potable water and divide by verified attendance for comparable event classes.

Previous-season median for the same event class.

Weather, cleaning cycles and event duration can distort per-capita comparisons.

Reconcile waste movements and maintain an ISO 20121 management cycle with objectives, evidence and review.

Event-season waste flows and documented operating controls.

Zero landfill does not distinguish reuse, recycling and energy recovery; certification does not quantify every impact.