1.5°C
1.5°C Pathway
GHG emissions reduction pathway compatible with the Paris Agreement objective of limiting global warming to 1.5°C above pre-industrial levels.
Understand the methods, indicators and regulations behind environmental decisions. Browse all 196 terms or search for a definition.
Read our guides196 terms in the glossary
1.5°C Pathway
GHG emissions reduction pathway compatible with the Paris Agreement objective of limiting global warming to 1.5°C above pre-industrial levels.
Association Bilan Carbone®
French association maintaining and promoting the Bilan Carbone® method.
Absolute Contraction Approach
SBTi method for setting targets through a uniform absolute reduction: -4.2 %/year to align with 1.5 °C.
Life Cycle Assessment
Assessment of a product’s environmental impact across multiple criteria and every stage of its life: raw material extraction, manufacturing, transport, use and end of life.
Climate Adaptation
Actions aimed at preparing for and adjusting to the already observable or expected consequences of climate change.
Principle that a climate action (project, carbon credit) must create an effect only because it took place, rather than an effect that would have occurred anyway.
French Agency for Ecological Transition
French public agency responsible for climate methodology tools (Bilan Carbone®, Base Carbone, Bilans GES platform).
French Anti-Waste Law for a Circular Economy
French law of 2020 structuring the transition to a circular economy: single-use plastic bans, repairability index, EPR and ending the destruction of unsold goods.
French Professional Advertising Regulatory Authority
Advertising self-regulatory body in France; publishes the Sustainable Development Recommendation.
Article 6 of the Paris Agreement
Framework for international cooperation between States to achieve their climate contributions through carbon transfers and credits.
GHG emissions that would have been produced without a particular action, but are not produced thanks to that action.
Certified B Corporation
International certification assessing a company’s overall social and environmental performance.
Base Carbone ADEME
France’s reference database of GHG emission factors (~5000 entries), free and publicly available.
Bilan Carbone®
Annual accounting of an organisation’s greenhouse gas emissions across scopes 1, 2 and 3.
Bioenergy with Carbon Capture and Storage
Biomass combustion (combined heat and power, ethanol) coupled with capture and storage of the emitted CO₂: theoretically, negative net emissions.
Greenhouse Gas Emissions Inventory
Mandatory carbon inventory in France for companies with more than 500 employees and the State.
Benchmark (ETS / CBAM)
Reference carbon intensity of an efficient European producer, used to calculate the free allocation deducted from the CBAM bill.
Bilan Produit ADEME
ADEME’s simplified LCA tool for quickly assessing a product’s impact.
Diversity of life at three levels: genetic, species and ecosystems.
Maximum amount of CO2 we can still emit to remain below a temperature threshold (1.5°C, 2°C).
Contribution to Collective Neutrality
Alternative concept to ‘offsetting’: funding climate projects outside your value chain without claiming personal neutrality.
Carbon Credits / Offsets
Verified units representing 1 tonne of CO2 avoided, reduced or sequestered, tradable on voluntary or regulated markets.
Total GHG emissions associated with an activity, product, individual, organisation or country.
Phenomenon whereby a company moves its emissions to a less constrained country to escape climate regulation.
Net Zero
Balance between an organisation’s residual emissions and carbon removals (sequestration, CDR technologies).
Ecosystem or technology absorbing more CO2 than it emits (e.g. a growing forest, DAC technology).
Carbon Border Adjustment Mechanism
European carbon border adjustment mechanism, taxing imports of carbon-intensive products (cement, iron, steel, aluminium, fertilisers, electricity, hydrogen).
CBAM Certificate (MACF)
Unit an importer buys and then surrenders to cover the embedded emissions of imports: one certificate corresponds to one tonne of CO2 at the European carbon market price.
Authorised CBAM Declarant
Status mandatory since 2026 for every European importer of CBAM-covered products exceeding 50 tonnes per year.
Carbon Capture and Storage
Capture of CO2 emitted by an industrial facility, followed by deep geological storage.
Carbon Capture, Utilization and Storage
Extension of CCS with the use of captured CO₂ in a product (EOR, synthetic fuels, chemicals, materials).
Carbon Disclosure Project
British NGO collecting and publishing environmental data from companies and local authorities at investors’ request.
Energy Savings Certificates
French scheme requiring energy sellers to encourage their customers to save energy.
Carbon Footprint of Batteries for Electric Vehicles
Method for calculating the carbon footprint of electric vehicle batteries under Article 7 of Regulation (EU) 2023/1542, whose delegated act has still not been adopted.
Carbon Footprint of Product
Carbon footprint of a product throughout its life cycle, expressed in kgCO2e per functional unit.
Methane
Second main GHG after CO2, ~16% of global emissions, mainly from agriculture (livestock) and fossil fuel leaks.
Economic model aimed at reducing resource consumption and waste generation through circularity (reuse, repair, recycling).
Interprofessional Technical Centre for Studies on Air Pollution
Organisation producing France’s national inventory of greenhouse gas and air pollutant emissions, published annually in the Secten report.
ClimaDiag Commune (Météo-France)
Free Météo-France service producing a climate summary for each municipality across the 3 TRACC horizons, organised into 5 groups of indicators.
Law No. 2021-1104 of 22 August 2021 on combating climate change and strengthening resilience
Law arising from the Citizens’ Convention on Climate, whose Article 35 makes an environmental criterion mandatory in all public contracts by 22 August 2026 at the latest.
Ecosystem of technologies dedicated to reducing, measuring or adapting to climate change: low-carbon energy, capture, mobility, agriculture, GHG measurement.
Combined Nomenclature
8-digit European customs code classifying each good: determines whether an imported product falls within CBAM’s scope.
Carbon Dioxide
Main anthropogenic greenhouse gas, from fossil fuel combustion and certain industrial processes.
LCA scope covering the entire life cycle, from raw material extraction to end of life, distinct from cradle-to-gate (up to the factory gate) and well-to-wheel (use only).
Carbon Risk Real Estate Monitor
European scientific framework for decarbonisation pathways by building type, used by real estate actors to assess an asset’s carbon risk.
Corporate Sustainability Due Diligence Directive
EU Directive 2024/1760 imposing corporate due diligence on human rights and the environment across companies’ chains of activities.
Corporate Sustainability Reporting Directive
European Directive 2022/2464 requiring standardised, audited sustainability reporting from approximately 50,000 European companies.
Physical infrastructure (servers, cooling, network) where AI runs. Around 3 % of global electricity projected by 2030.
Gradual reduction in the greenhouse gas emissions of an activity, sector or economy.
CBAM Default Values
Carbon intensities published by the Commission, used when actual supplier data is unavailable: conservative and increased by a rising mark-up.
French Directorate-General for Competition, Consumer Affairs and Fraud Control
French administration checking environmental claims (greenwashing) and unfair commercial practices.
Diagnostic Décarbon'Action
ADEME / Bpifrance support funding 40 % of a GHG inventory and its action plan for companies with fewer than 500 employees.
Dow Jones Sustainability Index
Global stock market index selecting companies with the strongest sustainability performance.
Double materiality
Key CSRD concept: reporting both on a company’s impact on society/the environment (impact materiality) and on the impact of ESG issues on the company (financial materiality).
Non-Financial Performance Declaration
French sustainability reporting derived from the NFRD, being phased out in favour of CSRD.
Digital Product Passport
European digital product passport that will make environmental and technical data for many products public from 2026-2030.
DRIAS: future climates
Météo-France portal providing reference regional climate projections for adaptation in France, now also presented using TRACC warming levels.
Approach integrating environmental considerations from the design stage of a product or service, throughout its life cycle.
Official French tool (ADEME / beta.gouv) for calculating products’ environmental cost, the reference method for textile environmental labelling.
French CSR rating platform assessing suppliers to major buyers.
Environmental Footprint 3.1 (reference package)
Reference package for the PEF method, underpinning all PEFCRs published since 2018, whose inventory datasets expired on 31 December 2025 due to contract expiry.
European Financial Reporting Advisory Group
European advisory group developing sustainability reporting standards (ESRS) for CSRD.
Embedded Emissions (CBAM)
Amount of greenhouse gases emitted to produce an imported good: the basis for calculating the CBAM charge.
Embodied Carbon / Incorporated Carbon
GHG emissions associated with raw material extraction, manufacturing, transport and end of life of a product or building, as opposed to use-phase emissions.
EU Empowering Consumers Directive 2024/825
European Directive of 6 March 2024 strengthening consumer rights against misleading environmental claims and greenwashing.
Environmental Labelling
Standardised labelling communicating a product’s environmental footprint to consumers, based on an LCA using the PEF methodology.
Enhanced Oil Recovery
Injection of CO₂ into an oil well near the end of its life to extract residual fractions: a major historical use of captured CO₂ in the United States.
Environmental Product Declaration
Environmental product declaration, the international equivalent of French FDES.
Environmental Social Governance
Three-part framework used by investors and rating agencies to assess a company’s non-financial performance.
Ecodesign for Sustainable Products Regulation
European Regulation 2024/1781 establishing the framework for eco-design and the Digital Product Passport.
Effort Sharing Regulation
European regime setting each Member State a national reduction target for sectors outside the carbon market: France must reach -47.5 % in 2030 relative to 2005.
European Sustainability Reporting Standards
The 12 European sustainability reporting standards underpinning CSRD.
Social and Solidarity Economy
Businesses and organisations (associations, cooperatives, mutual societies, foundations) putting social benefit above profit.
European Union Emissions Trading System
European carbon market: an emissions allowance system for energy-intensive sectors.
EU Deforestation Regulation
EU Regulation 2023/1115 banning the placing on the European market of products linked to deforestation, applicable since 30 December 2025.
Enterprise Value Including Cash
Total value of a listed company: market capitalisation + total debt + minority interests.
Explore2 project
National reference project on the impacts of climate change on water resources by 2100, completed in 2024 and led by INRAE and OiEau.
European Fluorinated Gas Regulation
European Regulation EU 2024/573 (March 2024) tightening restrictions on fluorinated greenhouse gases, with an HFC ban timeline through to 2050.
Environmental and Health Declaration Sheet
Standardised LCA for construction products, mandatory for construction actors subject to RE2020.
Emission Factor
Coefficient converting activity data (kWh, km, kg, €) into CO2-equivalent emissions.
Energy delivered to consumers after conversion and transport, as it appears on the bill.
Approach identifying ESG issues that have (or will have) a significant financial impact on the company.
Forest, Land and Agriculture
SBTi guidance dedicated to forest, land and agriculture emissions and removals, with specific targets.
Major Natural Risk Prevention Fund (FPRNM)
State fund established in 1995 subsidising natural risk prevention, with more than €200 million a year and rates ranging from 25% to 100% depending on the operation.
Fund to accelerate the ecological transition in local territories
State grant scheme for local authorities established in 2023, with €837 million allocated in 2026 and €4.5 billion committed since its launch.
Free Allowance Allocation (EU ETS)
Emission allowances allocated free to European industries exposed to international competition, progressively removed from 2026 to 2034 as CBAM scales up.
Géorisques portal
Public portal of the Ministry for Ecological Transition and BRGM providing 17 databases on natural and technological risks, with mapping services and APIs.
Greenhouse Gas Protocol
International standard for accounting for organisations’ and products’ GHG emissions.
Intergovernmental Panel on Climate Change
UN scientific organisation synthesising the state of climate knowledge.
Guarantee of Origin
European certificate confirming that a quantity of electricity was generated from renewable sources.
Graphics Processing Unit
Specialised processor running AI models. It consumes a great deal: an H100 card draws around 700 W at full load.
EU Green Claims Directive
Proposed European directive (2023) requiring scientific third-party verification for any explicit environmental claim made by a company.
The opposite of greenwashing: not communicating climate actions for fear of being accused of greenwashing.
Misleading practice presenting a product or company in a flattering environmental light without substantive reality.
Global Reporting Initiative
International CSR reporting framework, widely adopted before ESRS arrived.
Global Warming Potential
Global warming potential of a GHG, expressed relative to CO2 over a given time horizon (usually 100 years).
French High Council on Climate
Independent body established in 2018 and enshrined in the 2019 Energy and Climate Law, which assesses French public climate action and publishes an annual report and opinions on the SNBC and PNACC.
Decree No. 2025-482 of 27 May 2025 on Preventing Heat-Related Risks at Work
Labour Code legislation in force since 1 July 2025 requiring every employer to assess heat risk and take preventive measures, indexed to Météo-France warning thresholds.
Hydrofluorocarbons
Family of synthetic fluorinated gases used as refrigerants in air conditioning, refrigeration and heat pumps, with very high warming potentials.
Urban Heat Island
Local temperature increase in dense urban areas, which can reach +2 to +8 °C compared with the surrounding countryside.
Life Cycle Inventory
LCA stage collecting and quantifying input flows (resources, energy) and output flows (emissions, waste) of the system studied.
IFRS Sustainability Standards
Global sustainability reporting standards (IFRS S1 general, IFRS S2 climate) issued by ISSB.
Approach identifying issues where the company has (or could have) a significant impact on society/the environment.
Inference (AI)
Use phase of an AI model, when it answers requests, as opposed to training. It now dominates consumption.
Carbon Insetting
Emissions reduction or carbon sequestration within the contributing company’s own value chain (as opposed to external offsetting).
International standard defining the principles and framework of Life Cycle Assessment.
International standard specifying detailed requirements and guidelines for carrying out an LCA.
International standard for quantifying and reporting GHG emissions at organisation level.
International standard for quantifying a product’s carbon footprint (Carbon Footprint of Product).
ISO 16128 - Natural Origin Index
International standard for calculating the natural and organic origin index of cosmetic ingredients.
International guidelines on organisations’ social responsibility.
Socially Responsible Investment
Investment approach incorporating ESG criteria alongside traditional financial criteria.
International Sustainability Standards Board
Organisation attached to the IFRS Foundation issuing global sustainability reporting standards.
Implied Temperature Rise
Aggregate indicator of a portfolio’s climate alignment, expressed in °C of warming by 2100.
Just transition
Approach ensuring the ecological transition does not come at the expense of workers and communities dependent on changing sectors.
French label certifying GHG emissions reduction or sequestration projects on national territory.
Local Climate Zones
Cerema mapping published in May 2025 classifying land into 17 categories to visualise sensitivity to heat: 12,000 municipalities and 44 million inhabitants covered, with open access.
Marginal Abatement Cost Curve
Curve ranking a company’s or sector’s decarbonisation levers by increasing cost per tonne of CO₂ avoided.
Marginal Electricity Mix (Peak)
Emission factor of the last power station called on to meet additional electricity demand, generally highly carbon-intensive (gas, coal) because renewables are already running at full capacity.
Monitoring, Measurement and Verification
Mandatory monitoring programme for a geological CO₂ storage site: leak detection, quantification and verification by an independent third party.
Nitrous Oxide
GHG mainly from agriculture (nitrogen fertilisers) and certain industrial processes.
Net Zero (Zero Net Emissions)
State in which residual GHG emissions are balanced by active CO2 removals from the atmosphere, at the scale of a system.
Non-Financial Reporting Directive
European Directive 2014/95 on non-financial reporting, replaced by CSRD from 2024.
Net Zero Initiative
French framework developed by Carbone 4 to align business initiatives with global Net Zero objectives.
Organisation Environmental Footprint
The ‘organisation’ counterpart of European PEF: a standardised LCA of an organisation across multiple criteria.
Carbon Offsetting
Purchasing credits representing 1 tCO2 avoided or sequestered elsewhere, to ‘neutralise’ your own emissions.
Omnibus Package (CSRD/CS3D Simplification)
European legislative package simplifying sustainability reporting, in force since March 2026: CSRD thresholds raised to 1,000 employees and €450M in turnover.
French National Observatory on the Effects of Global Warming
Observatory attached to the Ministry for Ecological Transition publishing 27 climate change indicators in 6 themes and monitoring implementation of the national adaptation plan.
OPERAT Platform
ADEME platform monitoring energy consumption in the tertiary sector (Tertiary Decree).
Independent Third-Party Body
COFRAC-accredited auditor verifying non-financial declarations (DPEF, CSRD).
Decarbonisation Pathway
Quantified plan for reducing a company’s GHG emissions over 5-30 years, with interim targets.
Territorial Climate-Air-Energy Plan
Strategic planning tool for inter-municipal bodies with > 20,000 inhabitants to support their territory’s ecological transition.
Partnership for Carbon Accounting Financials
Accounting standard for financed emissions (banks, insurers, investors).
Product Category Rules
Product category rules specifying how to carry out an LCA for a family of products.
Equity Savings Plan
French tax wrapper enabling investment in European equities with income tax exemption after 5 years.
Product Environmental Footprint
Harmonised European life cycle assessment method, central to environmental labelling and DPP.
PEF Category Rules
Sector-specific rules specifying the PEF method for a product family (textiles, batteries, milk, wine, etc.).
Physical Climate Risks
Risks to a company related to the physical impacts of climate change (droughts, floods, storms, sea level rise).
Precise, Honest, Substantiated
Celsius method for testing an environmental claim before publication against three criteria: Precise, Honest, Substantiated.
Scientific framework of 9 indicators beyond which planetary stability is no longer guaranteed.
National Climate Change Adaptation Plan
Interministerial plan organising France’s preparation for warming impacts; its 3rd edition, published on 10 March 2025, contains 52 measures across 5 priorities.
Proof of Stake
Blockchain consensus mechanism based on depositing collateral as a stake (Ethereum, Solana, Cardano).
Power Purchase Agreement
Long-term contract for the direct purchase of renewable electricity between a producer and a consumer.
Packaging and Packaging Waste Regulation
European 2025 packaging regulation: recyclability, minimum recycled content, reduction and reuse.
Global Warming Potential
French equivalent of GWP. A GHG’s ability to warm the atmosphere over 100 years, expressed relative to CO2.
Energy available in nature before any conversion (coal, oil, uranium, wind, sun).
Climate Transition Plan
Formal decarbonisation roadmap aligned with a 1.5°C pathway, required by CSRD (ESRS E1-1) and CSDDD.
Environmental Regulation 2020
Thermal regulation for new buildings in France incorporating a complete life cycle assessment.
AI model generating a long internal reasoning chain (many tokens) before replying, leading to much higher consumption.
Rebound Effect (Jevons Paradox)
When an energy efficiency gain leads to increased use that partly (or entirely) cancels the expected saving.
Extended Producer Responsibility
Principle making producers responsible for the end of life of products they place on the market.
Repairability Index (then Durability)
Score out of 10 displayed on certain electronic products in France to inform consumers about their repairability.
Clay shrink-swell
Ground movement caused by changes in the moisture content of clay soils, cracking detached houses and costing the natural catastrophe insurance scheme around €1 billion a year.
Corporate Social Responsibility
Voluntary approach integrating social and environmental issues into a company’s strategy and operations.
Science Based Targets initiative
Initiative validating the consistency of corporate reduction targets with a pathway compatible with 1.5°C.
Direct Emissions
GHG emissions directly produced by the organisation: on-site combustion, fleet vehicles, refrigerant gas leaks.
Energy-Related Emissions
Emissions from producing purchased energy (electricity, heat, cooling, steam).
Upstream and Downstream Indirect Emissions
All other value-chain emissions: purchases, travel, transport, use of sold products and end of life.
Purchased Goods and Services
Scope 3 category covering emissions from the production of goods and services purchased by the company.
Use of Sold Products
Scope 3 category counting emissions generated by the use of products sold by the company.
Real Estate Investment Company
Collective investment vehicle for rental property (offices, shops, healthcare, logistics).
Sectoral Decarbonization Approach
SBTi method for setting sector-specific reduction targets aligned with 1.5°C.
Seasonal Energy Efficiency Ratio
Seasonal performance coefficient of an air conditioner: ratio of cooling energy delivered to electrical energy consumed over a full season.
Sustainable Finance Disclosure Regulation
European Regulation 2019/2088 requiring financial market participants to disclose the sustainability of their products.
Small and Medium Enterprises route (SBTi)
Simplified SBTi route for SMEs with fewer than 250 employees and 10,000 tCO2e in scopes 1+2.
National Low-Carbon Strategy
France’s decarbonisation roadmap, approved by decree to achieve carbon neutrality in 2050.
Schema.org Speakable
Schema.org markup format indicating which passages on a page voice assistants should read aloud.
Energy and Material Sufficiency
Reduction of demand (energy, materials, consumption) at source through changes to uses and needs, as opposed to efficiency (doing better with as much).
Territorial Climate Change Adaptation Pathways
Approach published by ADEME since 2019, recognised as the national adaptation plan’s reference methodology, structuring a territory’s assessment and adaptation strategy in 3 stages.
European Taxonomy
European system classifying economic activities according to their environmental sustainability.
Task Force on Climate-related Financial Disclosures
Recommendations on reporting climate-related financial risks, incorporated into CSRD.
Territoire Engagé Transition Écologique label (ADEME)
ADEME framework with 61 measures in 6 areas scored out of 500 points, including 100 for territorial planning alone, with 5 star levels ranging from 35% to 75% of points.
Task Force on Nature-related Financial Disclosures
TCFD equivalent for nature and biodiversity issues, finalised in 2023.
Token (AI Processing Unit)
Basic unit processed by AI: a word fragment (around 0.75 words). A request’s energy and cost are counted in tokens.
Reference Warming Trajectory for Climate Change Adaptation
Official trajectory on which France plans adaptation: +2 °C in 2030, +2.7 °C in 2050 and +4 °C in 2100 in mainland France, written into the Environmental Code on 23 January 2026.
TranSensus LCA (Horizon Europe project)
European project completed in 2025 establishing a harmonised LCA approach for zero-emission road vehicles, a methodological reference for 2025-2030.
Climate Transition Plan
Strategic document setting out how a company will reduce its GHG emissions over 5-30 years.
Risks to a company related to the shift to a low-carbon economy: regulation, market, technology, reputation.
Triman Logo
Mandatory sorting signage in France on products subject to sorting instructions, accompanied by Info-tri.
Land Use, Land-Use Change and Forestry
National inventory sector accounting for soil and forest removals and emissions: net sink of -52 Mt CO2e in France in 2024, around 14 % of other emissions.
Voluntary SME standard
Simplified sustainability reporting standard for unlisted SMEs, on a voluntary basis.
Weighted Average Carbon Intensity
SFDR regulatory indicator: portfolio carbon intensity weighted by each issuer’s portfolio weight.