Evidence

UncertaintyThese established definitions do not select which result, purpose, stakeholder, or resource boundary should govern a specific decision.

CounterinterpretationSome evaluation practices assess efficiency across outcomes and impacts rather than direct output alone.

Cultural contextWhat counts as a resource, result, or justified cost can differ across institutions and affected groups.

UncertaintyCausal attribution from an output to an outcome may be difficult, and organizations use results-chain terms with some variation.

CounterinterpretationIn tightly controlled processes, a well-specified output may serve as a practical proxy for an outcome, but the proxy should be declared.

Cultural contextOfficial results frameworks can privilege outcomes that institutions can count over changes affected groups consider important.

UncertaintyThis legal distinction does not apply universally outside the European Union and does not by itself measure environmental or social consequence.

CounterinterpretationEveryday and operational uses of “byproduct” are broader than the EU legal category.

Cultural contextClassification changes compliance duties, market access, handling costs, and who bears risk.

UncertaintyThe figures are global statistical estimates; documented formal collection is not the same as complete material recovery or safe handling of every fraction.

CounterinterpretationThe undocumented share includes multiple destinations and should not be described as one uniform informal or disposal pathway.

Cultural contextGlobal totals conceal large regional differences in consumption, trade, collection infrastructure, livelihoods, and exposure.

UncertaintyThese are monetized global estimates using modelling choices; their categories should not replace the distinct physical, health, labor, or ecological measures beneath them.

CounterinterpretationMaterial value does not mean all material is technically, economically, or safely recoverable, and a monetized externality is not the full lived consequence.

Cultural contextCosts and benefits are distributed unevenly among producers, consumers, formal and informal workers, communities, and future generations.

UncertaintyGlobal employment is modelled from input-output and labor data, and “informal” covers heterogeneous work, capability, bargaining power, safety, and regulation.

CounterinterpretationTreating all informal activity as only harm can erase livelihoods and expertise; treating it only as value recovery can hide exposure and unequal conditions.

Cultural contextRepair and recovery systems differ sharply by income, gender, region, infrastructure, law, and worker organization.

UncertaintyThese are minimum requirements for covered products placed on the EU market; actual service, repair cost, parts quality, and useful life vary.

CounterinterpretationRegulatory availability does not guarantee that every repair is affordable, chosen, technically successful, or environmentally preferable.

Cultural contextRepair options depend on jurisdiction, access to tools and parts, data rights, skill, income, and local service capacity.

UncertaintyData-centre electricity estimates and future scenarios carry substantial uncertainty and vary greatly by facility, service, location, grid, and time.

CounterinterpretationA global percentage can appear modest while geographically concentrated facilities can have large local electricity and infrastructure effects.

Cultural contextThe location of infrastructure, energy supply, water and cooling conditions, data governance, and who receives the service shape distributional consequences.

UncertaintyWhether a particular reserve is proportionate requires service requirements, failure risk, alternatives, cost, and consequence data.

CounterinterpretationA reserve can still be excessive or poorly designed; the claim is only that utilization rate alone is insufficient to classify it as waste.

Cultural contextReliability priorities and the consequences of failure differ across hospitals, public services, businesses, households, and regions.

UncertaintyThe global total includes inedible parts and is not a bread-specific estimate; data quality and coverage differ across countries and sectors.

CounterinterpretationFood loss before retail is measured separately, so this claim should not stand for the entire food supply chain.

Cultural contextEdibility, preparation, portioning, storage, redistribution, and household practice vary across places and cultures.

UncertaintyMonetary valuation depends on modelling, jurisdiction, available data, ethical choices, and whose losses receive a price.

CounterinterpretationA consequence can be important even when monetization is unavailable or inappropriate.

Cultural contextInstitutions with authority to define and price external costs can privilege some harms, timescales, and affected parties over others.

UncertaintyThe instrument is a teaching model, not a universal legal definition or predictive life-cycle assessment.

CounterinterpretationSome hazardous materials require firm handling duties regardless of a visitor's purpose or preferred ledger.

Cultural contextAuthority to name waste and draw boundaries is distributed unequally; classification can transfer duties, value, and burden.