Comprehensive glossary of climate risk, carbon accounting, ESG compliance, and quantum computing terms used in the Quantum Climate Risk Intelligence Platform.
Carbon Accounting
Scope 1 Emissions
Direct greenhouse gas emissions from sources owned or controlled by the organization, including fuel combustion in company vehicles, on-site manufacturing processes, and fugitive emissions from refrigeration systems.
Example: Natural gas burned in a company-owned boiler for facility heating.
Learn more: GHG Protocol Standard
Scope 2 Emissions
Indirect emissions from the generation of purchased electricity, steam, heating, and cooling consumed by the organization. Calculated using location-based or market-based methods.
Example: Electricity purchased from the grid to power office buildings and data centers.
Learn more: Scope 2 Guidance
Scope 3 Emissions
All other indirect emissions in the value chain, including purchased goods/services, business travel, employee commuting, transportation, distribution, product use, and end-of-life treatment. Represents 70-90% of total footprint for most organizations.
Example: Emissions from supplier manufacturing, freight transportation, and customer product use.
Learn more: Scope 3 Standard
Carbon Intensity
Emissions per unit of economic output or activity, typically measured as tons CO2e per million dollars revenue (tCO2e/$M) or per unit produced. Used to track decarbonization efficiency independent of business growth.
Example: 250 tCO2e/$M revenue indicates relatively low carbon efficiency.
CO2 Equivalent (CO2e)
Universal unit expressing the warming potential of different greenhouse gases relative to carbon dioxide. Methane (CH4), nitrous oxide (N2O), and fluorinated gases are converted to CO2e using Global Warming Potential (GWP) factors.
Example: 1 ton of methane = 25 tons CO2e (100-year GWP).
Climate Risk
Physical Risk - Acute
Short-term, event-driven climate hazards including hurricanes, floods, wildfires, heatwaves, and storms. Result in immediate asset damage, supply chain disruption, and business interruption.
Example: Category 5 hurricane causing $50M facility damage and 60 days production halt.
Physical Risk - Chronic
Long-term gradual climate changes including sea level rise, sustained temperature increases, precipitation pattern shifts, and chronic water stress. Cause gradual asset devaluation and operational degradation.
Example: 1-meter sea level rise forcing coastal facility relocation by 2050.
Transition Risk
Financial risks from policy changes, technology shifts, market dynamics, and reputation impacts during the transition to a low-carbon economy. Includes carbon pricing, stranded assets, and regulatory compliance costs.
Example: $75/ton carbon tax increasing annual operating costs by $35M.
Climate VaR (Value at Risk)
Maximum expected financial loss from climate-related events at a given confidence level over a specified time horizon. Quantum algorithms enable probabilistic risk quantification across correlated scenarios.
Example: 95% Climate VaR of $120M means 5% probability of exceeding this loss.
Climate Tipping Point
Critical threshold where climate system undergoes abrupt, irreversible change. Examples include Arctic ice sheet collapse, Amazon rainforest dieback, and Atlantic meridional overturning circulation shutdown. Quantum walks detect early warning signals.
Example: West Antarctic ice sheet destabilization at 2°C warming.
ESG & Compliance
TCFD (Task Force on Climate-related Financial Disclosures)
Framework for climate-related financial risk disclosure across four pillars: Governance, Strategy, Risk Management, and Metrics & Targets. Mandatory in many jurisdictions for listed companies and financial institutions.
Example: Annual report must disclose scenario analysis for 1.5°C, 2°C, and 4°C warming.
Learn more: TCFD Framework
CSRD (Corporate Sustainability Reporting Directive)
EU regulation requiring comprehensive sustainability reporting for large companies and listed SMEs. Mandates double materiality assessment covering environmental, social, and governance impacts.
Example: 50,000+ companies must comply with ESRS standards starting 2024-2028.
Learn more: EU CSRD
SBTi (Science Based Targets Initiative)
Framework for setting corporate emission reduction targets aligned with climate science and Paris Agreement goals. Requires 1.5°C pathway with near-term (5-10 years) and net-zero (2050) targets.
Example: Scope 1+2 reduction of 42% by 2030 and 90% by 2050 from 2020 baseline.
Learn more: SBTi Standards
GRI (Global Reporting Initiative)
World's most widely used sustainability reporting standards. Modular framework covering economic, environmental, and social topics with disclosure requirements for energy, emissions, water, waste, and biodiversity.
Example: GRI 305 requires disclosure of Scope 1, 2, and 3 emissions with calculation methodology.
Learn more: GRI Standards
CDP (Carbon Disclosure Project)
Global disclosure system for environmental impact management. Companies report climate, water, and forest data annually. Scored A to D based on disclosure quality, awareness, management, and leadership.
Example: CDP Climate A-List includes companies demonstrating environmental leadership.
Learn more: CDP Platform
Materiality Assessment
Process identifying sustainability topics most significant to enterprise value and stakeholders. Double materiality considers both financial impact on company (outside-in) and company's environmental/social impact (inside-out).
Example: Carbon emissions rated high financial materiality and high stakeholder concern.
Net-Zero & Renewables
Net-Zero Emissions
Achieving balance between greenhouse gases emitted and removed from atmosphere. Requires 90-95% absolute emission reductions with remaining 5-10% neutralized through permanent carbon removal (not offsets).
Example: Reduce 500,000 tCO2e to 25,000 tCO2e, neutralize residual with direct air capture.
Learn more: Net-Zero Standard
Renewable Energy Certificate (REC)
Market-based instrument representing the environmental attributes of 1 MWh renewable electricity generation. Used for Scope 2 market-based accounting and voluntary renewable energy procurement.
Example: Purchase 50,000 RECs to cover annual electricity consumption of 50 GWh.
Power Purchase Agreement (PPA)
Long-term contract (10-25 years) to purchase renewable electricity at fixed price directly from generator. Provides price certainty, emission reductions, and additionality for corporate renewable energy goals.
Example: 20-year PPA for 100 MW solar farm at $35/MWh, avoiding 80,000 tCO2e annually.
Carbon Removal
Permanent extraction and storage of CO2 from atmosphere through natural or technological solutions. Includes direct air capture (DAC), enhanced weathering, biochar, and afforestation. Required for net-zero residual emissions.
Example: Direct air capture removing 5,000 tCO2e and storing in geological formations.
QAOA (Quantum Approximate Optimization Algorithm)
Quantum algorithm for solving combinatorial optimization problems. Applied to renewable energy portfolio optimization, supply chain routing, and grid balancing with exponentially faster solutions than classical methods.
Example: Optimize solar-wind-battery mix across 1000 sites with 10^300 combinations.
Learn more: QAOA Paper
Quantum Computing
Quantum Entanglement
Quantum phenomenon where two or more qubits become correlated such that measuring one instantly affects the other. Used in QCRIP to model climate risk correlations across geographies, sectors, and hazard types.
Example: Entangle carbon emission and climate hazard qubits to capture causality.
Amplitude Estimation
Quantum algorithm providing quadratic speedup for Monte Carlo probability estimation. Applied to disaster risk quantification, scenario analysis, and climate VaR calculation with 100x fewer samples.
Example: Estimate hurricane probability distribution from 10^6 climate model runs.
Quantum Walk
Quantum analogue of classical random walk demonstrating quantum speedup for graph search and pattern detection. Used for climate tipping point identification and supply chain network analysis.
Example: Detect early warning signals of ice sheet collapse from temperature data.
Variational Quantum Eigensolver (VQE)
Hybrid quantum-classical algorithm for finding ground state energy of quantum systems. Applied to carbon pricing optimization and emission trading scheme equilibrium calculation.
Example: Optimize global carbon price to achieve 1.5°C pathway at minimum cost.
Grover's Algorithm
Quantum search algorithm providing quadratic speedup for unstructured database search. Applied to climate scenario database queries and optimal mitigation strategy identification.
Example: Search 10^12 climate scenarios for least-cost net-zero pathway.
Learn more: Grover's Algorithm
Risk Metrics
Stranded Assets
Assets suffering unexpected write-downs, devaluations, or premature retirement due to climate-related policy, technology, or market changes. Common in fossil fuel infrastructure, high-emission facilities, and coastal real estate.
Example: Coal power plant forced to close 20 years early due to carbon price.
Carbon Price
Cost per ton of CO2 emissions imposed through carbon tax or emissions trading system. Used to internalize climate externalities and incentivize emission reductions. Projected to reach $75-$150/ton by 2030.
Example: EU ETS carbon price of €90/ton increases annual compliance costs by €45M.
Shadow Carbon Price
Internal carbon price used for investment decisions and scenario analysis, representing future regulatory costs. Typically set higher than current market price to prepare for transition risks.
Example: Microsoft uses $100/ton shadow price for capital allocation decisions.
Business Interruption
Lost revenue and increased costs from climate-induced operational disruption. Calculated as days of downtime multiplied by daily revenue and fixed costs, with supply chain ripple effects.
Example: 30-day wildfire evacuation causing $12M revenue loss and $3M recovery costs.