Carbon Footprint In The Jewelry Industry Statistics

The global gold mining sector accounts for 4% of global greenhouse gas (GHG) emissions (direct and indirect) [1]

Lifecycle GHG emissions are dominated by electricity and fuel used in extraction and processing for gold [2]

In a life cycle assessment (LCA) of gold, direct emissions from mining (fuel combustion) are a major contributor to total GHG emissions [3]

Artisanal and small-scale gold mining (ASGM) is responsible for a substantial share of global mercury emissions, associated with high climate impacts from low-efficiency processes [4]

Mercury emissions from ASGM are estimated at 1,000–1,200 tonnes per year globally [4]

The IPCC AR6 reports that CO2eq emissions from fossil fuels and industry drive global warming; jewelry chains rely heavily on fossil-fuel electricity in many regions [5]

Gold’s primary production is energy intensive: energy use in gold mining and processing is a key driver of climate impacts [6]

Silver production is energy intensive and contributes materially to GHG emissions in jewelry supply chains [7]

Platinum group metals (PGMs) have high upstream energy requirements that typically dominate jewelry footprints [8]

Rhodium production is among the higher-impact PGMs due to mining and refining energy needs [9]

In LCA studies of diamond jewelry, mining and cutting processes dominate life-cycle impacts, including climate footprint [10]

For diamonds, the manufacturing stage can be smaller than mining in many impact categories, but overall footprints are still largely driven by primary extraction [11]

Synthetic diamonds can reduce life-cycle GHG impacts depending on electricity mix; reductions are sensitive to grid carbon intensity [12]

In an LCA comparing natural vs. lab-grown diamonds, the climate impact reduction ranged significantly under different electricity mixes [12]

For gold supply chains, electricity generation is a major contributor to total GHG emissions [13]

The World Gold Council’s LCA summary indicates that energy-related processes dominate lifecycle GHG for gold [13]

In the World Gold Council’s “Impact of gold” work, the GHG intensity varies by region and refining route, with electricity and fuel drivers [14]

Processing/refining (smelting and refining) contributes substantially to upstream emissions in metals supply chains [15]

In life cycle inventories of gold refining, process energy and heat are major contributors to GWP [16]

For precious metals, refining energy use can represent a large fraction of cradle-to-gate climate impacts [17]

Jewelry manufacturing (casting, rolling, polishing, plating) typically uses electricity and fuels; electricity dominates many footprints [18]

Recycling (secondary metal) generally yields lower GHG emissions than primary production, typically due to reduced mining and refining steps [19]

The UNEP/UNIDO global report on metals indicates lower energy use and emissions for recycled metals compared with primary production [20]

The IPCC AR6 Summary for Policymakers states that limiting warming to 1.5°C requires rapid, deep emissions reductions, relevant to decarbonizing jewelry supply chains [5]

The Paris Agreement’s long-term temperature goal is “well below 2°C” and “pursue efforts to limit” to 1.5°C, driving demand for decarbonization [21]

Jewelry supply chain electricity and heat are major drivers of carbon footprint; grid carbon intensity is a key variable [22]

Electricity carbon intensity varies widely by region and time, sometimes differing by several-fold across grids [22]

Ember’s dataset provides hourly carbon intensity values used in footprint modeling [22]

IEA data show global electricity generation mix determines emissions per kWh [23]

IEA provides annual CO2 emissions from electricity generation by region, used to estimate indirect emissions for jewelry manufacturing electricity [24]

IPCC AR6 states that emissions from electricity depend on fuel mix and efficiency, affecting life-cycle footprints [25]

Global renewables capacity additions have increased, potentially lowering electricity emissions for manufacturing where grid decarbonizes [26]

Ember’s Global Electricity Review includes data on coal and gas shares; changes affect carbon intensity of grids used in jewelry production [27]

The Global Electricity Review reports coal generation share changes year-over-year [27]

Renewable electricity share in selected regions impacts potential emissions reductions for jewelry factories adopting renewables [28]

Our World in Data provides yearly renewable electricity shares by country [28]

Our World in Data provides CO2 emissions intensity of electricity by country (gCO2/kWh) [29]

Our World in Data provides monthly electricity carbon intensity profiles for some geographies, enabling scenario modeling [29]

Ember provides annual average carbon intensity by country/region [22]

IRENA tracks renewable energy deployment, enabling inference of emissions reductions in grids supplying jewelry manufacturing [30]

IRENA provides country-level renewable capacity data used in decarbonization estimates [30]

Electricity tariffs and adoption of renewables affect manufacturing emissions; adoption is tracked by IEA in policy and country statistics [31]

Many jewelry facilities adopt energy-efficient equipment; energy intensity improvements are documented broadly for industrial processes [32]

IEA “Energy Efficiency 2023” includes quantified savings potential for industry energy use, relevant for emissions from electricity and heat [32]

UNEP emissions scenarios highlight that clean electricity reduces industrial footprints [33]

UNEP Emissions Gap Report 2023 includes quantified emissions implications [33]

World Bank provides data on electricity production and emissions intensity by energy source in country datasets [34]

World Bank provides access to electricity indicators; electrification changes manufacturing energy sources and emissions [35]

The US EIA provides state electricity generation and CO2 emissions; manufacturing emissions depend on local mix [36]

EIA provides CO2 emission factors for electricity generation by state [37]

EIA’s electricity data includes fuel consumption by power plants; used in indirect emissions calculations [38]

China’s electricity generation coal share changes affect industry emissions; tracked by Ember and Our World in Data [27]

Germany’s renewable share and emissions intensity are tracked and used in factory footprint scenarios [39]

The UK grid decarbonization affects jewelry manufacturing emissions where UK-based firms operate [22]

The US average electricity emissions factor varies; data used in footprinting [40]

US EPA greenhouse gas equivalency calculator uses defined factors for emissions, supporting conversions in footprints [40]

IPCC provides warming potential (GWP) factors for converting gases to CO2e; LCA for jewelry uses these constants [41]

Jewelry-related supply chains have major exposure to Scope 3 emissions from purchased materials and logistics; Scope 3 includes up to 15 categories [42]

Scope 3 is often the largest component of emissions for manufacturing companies, as defined in GHG Protocol [43]

The GHG Protocol Scope 3 Standard includes categories 1–15; jewelry uses many upstream categories [42]

The EU Corporate Sustainability Reporting Directive (CSRD) requires large companies to report sustainability impacts including GHG emissions (ESRS E1) [44]

CSRD applies and begins phasing in for reporting; timelines drive disclosure of product and value chain carbon footprints [44]

ESRS E1 requires reporting climate change information including Scope 1, 2, and 3 emissions [45]

EU taxonomy and disclosure requirements increase pressure on lifecycle emissions reporting [46]

The EU Due Diligence rules and sustainability regulation can affect jewelry sourcing practices (including minerals and supply chain risk) [47]

EU conflict minerals due diligence affects gold supply chains; it targets mineral sourcing integrity, which influences related emissions and practices [47]

The EU’s Mercury Regulation requires measures for mercury use and emissions; impacts ASGM-linked jewelry supply chains [48]

Basel Convention controls transboundary movements of hazardous waste; recycling flows can affect jewelry scrap management [49]

ILO or human-rights due diligence policies can cause supply chain formalization that can also affect energy use and emissions [50]

EU Battery Regulation affects manufacturing of some jewelry devices/accessories; circularity requirements can influence material recycling practices [51]

US SEC climate disclosure rule (finalized/required) influences reporting of climate emissions for public firms, affecting jewelry brands [52]

California SB 253 requires climate-related financial risk reporting; affects downstream disclosures [53]

California SB 261 requires climate-related emissions disclosure by 2026; impacts jewelry firms operating there [54]

California SB 261 defines Scope 1 and 2 emissions and includes Scope 3 disclosures starting later, providing pressure for jewelry supply chains [54]

Voluntary frameworks like SBTi encourage emissions reductions; criteria document defines alignment with 1.5°C [55]

The Responsible Jewellery Council (RJC) Code of Practices includes sustainability requirements that can include energy and emissions management [56]

RJC Code of Practices requires members to report and manage environmental impacts, including energy and emissions [56]

Responsible Jewellery Council (RJC) includes Chain-of-Custody Standard; affects traceability of metals and encourages improvements [57]

RJC Chain-of-Custody Standard supports risk management including environmental issues, which can relate to carbon footprint [57]

Kimberley Process certification covers diamond trade; compliance affects supply chain practices but not directly carbon [58]

RJC and other standards influence procurement of recycled metals which changes carbon footprints [57]

The UN Guiding Principles on Business and Human Rights influence supply chain due diligence, which can reshape industrial energy use [59]

The UN “Guiding Principles” provide framework requiring business to respect human rights; often tied to formalization in mining, which can alter emissions [59]

Corporate reporting pressures increase disclosed Scope 1-3 and product footprint efforts in consumer goods including jewelry [44]

Market initiatives such as Artisanal Gold and ASGM formalization reduce environmentally harmful practices including mercury use [60]

UNEP ASGM mercury reduction efforts are linked to improving health and environmental outcomes, including energy efficiency improvements [60]

World Gold Council’s “Responsible Gold Mining Principles” guide expectations that may affect energy use and emissions management [61]

The World Gold Council provides data and technical resources on “recycled gold” supporting lower-carbon sourcing [62]

Gold jewelry recycling rates influence carbon footprints; increased recycling reduces demand for high-emission primary mining [62]

Global recycled gold supply is a significant component of total gold supply, lowering net mining needs [62]

The World Gold Council reports recycled gold supply as thousands of tonnes annually [62]

The World Gold Council provides “Recycled gold” data including annual volumes (tonnes), used to estimate secondary supply impacts [62]

UNEP reports that recycling can significantly reduce energy use and emissions for metals compared with primary production [19]

The UNEP report quantifies energy savings for recycled metals vs primary production in life-cycle terms [19]

The EU Circular Economy Action Plan emphasizes higher recycled material uptake; specific targets (e.g., batteries) are not jewelry-specific, but they influence secondary metal markets [63]

The EU Critical Raw Materials Act includes recycling targets for certain critical materials; for jewelry supply chains these targets can affect secondary feedstocks [64]

The WGC/industry data show that recycling rates vary by region, affecting the average embodied footprint in refined gold used in jewelry [62]

Scrap and recycled content can reduce GHG intensity in gold, depending on process routes and system boundaries [62]

In many LCAs of precious metals, system expansion and allocation for recycled content determines the resulting footprint of jewelry materials [16]

For recycled gold, avoiding primary production leads to lower embodied GHG compared with primary gold [17]

Recycling yields depend on collection and sorting efficiency; higher yield increases secondary supply [65]

EU waste and recycling reporting indicates recycling rates for packaging and metals; metals recycling increases secondary availability [66]

Eurostat reports metal recycling rates in EU member states, which underpin availability of scrap feedstock for jewelry supply chains [67]

The US EPA reports recycling rates for metals in municipal solid waste, affecting scrap supply [68]

The IEA and other agencies report that recycling reduces demand for primary materials and energy, relevant for metals [69]

The World Bank indicates that increased recycling and waste management reduce resource extraction, relevant for metals used in jewelry [70]

The OECD quantifies that global circular material use is growing but remains limited, influencing recycling contributions to metals markets [71]

Metals circularity indicators show that recycling rates for precious metals vary significantly across supply chains [72]

Jewelry refurbishment and resale extend product lifetime, reducing material demand per year [18]

EAF circular jewelry reports include quantified lifetime extension scenarios reducing impacts per item [18]

Material intensity reductions can be achieved via design-for-optimization (e.g., less metal per piece), lowering embodied impacts [73]

Diamond jewelry uses materially less mined rock per carat in modern processing than older benchmarks, affecting upstream footprints; improvements are documented in industry research [74]

Diamond cutters and polishers improve yield; gem-to-polished yield affects the material footprint per finished diamond [75]

Synthetic diamonds avoid mining but use energy-intensive synthesis; material intensity is different from mined diamonds [12]

Gold’s substitution with recycled content depends on the mix of scrap input; industry data provide recycled content fractions [62]

Platinum jewelry uses PGMs with high recycling value; increased recycling can reduce primary mining needs [76]

The EU Product Environmental Footprint (PEF) approach supports consistent carbon footprint calculation methods for products [77]

ISO 14067 specifies quantification and communication of carbon footprints of products [78]

ISO 14040 provides principles and framework for life cycle assessment (LCA), used for jewelry footprint studies [79]

ISO 14044 provides requirements and guidelines for LCA, used to build jewelry carbon footprint studies [80]

The GHG Protocol Product Life Cycle Accounting and Reporting Standard provides rules for calculating product GHG footprints [81]

The GHG Protocol provides category definitions for scope 3, relevant to jewelry supply chains [82]

The GHG Protocol Scope 3 Standard includes 15 categories; jewelry supply chains use category 1 (purchased goods) and category 4 (upstream transportation) [42]

The UK’s PAS 2050 standard provides methods for carbon footprinting of goods and services, used in supply chain footprinting [83]

The ISO 14025 environmental labels and declarations standards support claims that can relate to carbon footprints of jewelry products [84]

The ISO 14020 series provides general principles for environmental labels, relevant to carbon claims [85]

The EU Commission’s Environmental Footprint methodology provides PEF rules used in product footprints [86]

The European Commission’s recommendation on the use of PEF includes specific methodological guidance [87]

The ILCD handbook provides guidance on life cycle inventory analysis critical to footprint studies [88]

JRC ILCD handbook provides numbers/coefficients for life cycle impact assessment methods (LCIA), used to compute climate categories [89]

The EF method uses characterization factors for GWP100 from IPCC, used in product carbon footprint calculations [90]

The GWP100 characterization factors are defined by IPCC AR6; these values determine CO2e conversion in footprints [41]

The ISO 14064-1 standard specifies organization-level GHG quantification and reporting, used by jewelry manufacturers for corporate footprints [91]

ISO 14064-3 specifies validation and verification of GHG claims, used for audit of jewelry emissions data [92]

The Science Based Targets initiative (SBTi) provides criteria for targets; jewelry firms use it for emissions reduction targets [55]

SBTi provides methodology for target setting including 1.5°C alignment, relevant to reducing jewelry carbon footprints [55]

The Task Force on Climate-related Financial Disclosures (TCFD) provides recommended disclosures that include Scope 1-3 emissions, used by jewelry firms [93]

The TCFD recommendations include metrics and targets guidance, supporting emission reporting [94]

CDP questionnaires request disclosure of Scope 1, 2, and 3 emissions, enabling jewelry footprint benchmarking [95]

CDP provides reporting guidance for GHG emissions calculation [96]

The PCAF (Partnership for Carbon Accounting Financials) provides financed emissions frameworks relevant to jewelry investment footprints [97]

ICMM and other guidance about mining LCA supports GHG calculations relevant to jewelry metals sourcing [98]

Ecoinvent database is widely used for LCAs of materials used in jewelry; it provides foreground/background emission factors [99]

US EPA’s Waste Reduction Model (WARM) provides emission factors for recycling vs landfill, relevant for metal recycling scenarios [100]

WARM includes default emission factors and guidance used in recycling impact calculations [101]

The World Steel Association provides LCA and recycling factors used in jewelry components involving steel supports [102]

The UK Environment Agency provides guidance for emissions estimation in product lifecycle studies [103]