Carbon Footprint and Trading — Revision Notes

⚡ 30-Second Revision

Carbon footprint = total GHG emissions in CO2 equivalent
Three scopes: 1(direct), 2(purchased energy), 3(value chain)
PAT scheme: 8 sectors, energy intensity targets, ESCerts trading
Article 6: 6.2(bilateral), 6.4(centralized), 6.8(non-market)
CBAM: EU carbon border tax on imports
GHG Protocol: international accounting standard
Cap-and-trade vs carbon tax: quantity vs price instruments
MRV: monitoring, reporting, verification systems
CDM replaced by Article 6.4 mechanism
Constitutional basis: Article 48A, 51A(g)

2-Minute Revision

Carbon footprint measures total greenhouse gas emissions using three scopes: Scope 1 (direct emissions from owned sources), Scope 2 (indirect from purchased energy), and Scope 3 (value chain emissions).

Carbon trading creates market mechanisms through cap-and-trade systems (emission limits with tradeable allowances) or offset mechanisms (credits for reductions). India's PAT scheme covers 8 energy-intensive sectors with energy intensity targets, allowing ESCerts trading for overachievers.

International frameworks evolved from Kyoto Protocol's CDM to Paris Agreement Article 6, enabling cooperative approaches (6.2), centralized mechanism (6.4), and non-market approaches (6.8). The EU's CBAM imposes carbon costs on imports, affecting Indian steel, cement, and aluminum exports.

Corporate accounting follows GHG Protocol standards, with India's BRSR mandating climate disclosure. Key challenges include additionality, carbon leakage, and MRV system development.

5-Minute Revision

Carbon footprint and trading represents the intersection of environmental science, economics, and policy in climate governance. Carbon footprint quantifies total GHG emissions across three scopes: direct emissions (Scope 1), purchased energy emissions (Scope 2), and value chain emissions (Scope 3), typically the largest component.

Measurement follows GHG Protocol standards using activity data and emission factors, with lifecycle assessment for products. Carbon trading mechanisms include cap-and-trade systems (setting emission limits and trading allowances) and offset mechanisms (generating credits for reductions).

Economic theory supports carbon pricing as internalization of environmental externalities, creating financial incentives for emission reductions. India's PAT scheme demonstrates successful adaptation to developing country context, covering aluminum, cement, iron and steel, thermal power, fertilizer, petroleum refinery, railways, and textiles sectors.

Energy intensity targets allow continued growth while improving efficiency, with ESCerts trading for overachievers. International frameworks evolved from Kyoto Protocol mechanisms (CDM, JI, IET) to Paris Agreement Article 6: bilateral cooperation (6.

2), centralized mechanism (6.4), and non-market approaches (6.8). The EU's CBAM addresses carbon leakage by imposing costs on imports from countries with weaker climate policies, affecting Indian exports and creating pressure for domestic carbon pricing.

Corporate carbon accounting enables ESG reporting, green finance access, and supply chain engagement, with India's BRSR mandating disclosure for top 1000 companies. Current developments include India's domestic carbon market plans, voluntary market growth, and enhanced international cooperation under Article 6 implementation guidelines from COP28.

Prelims Revision Notes

1
PAT Scheme Details: Covers 8 sectors (aluminum, cement, iron and steel, thermal power, fertilizer, petroleum refinery, railways, textiles), over 1000 industrial units, 60% of industrial energy consumption, energy intensity targets, ESCerts trading, implemented under Energy Conservation Act 2001. 2. Article 6 Mechanisms: 6.2 (bilateral/multilateral cooperation, ITMOs), 6.4 (centralized UN mechanism replacing CDM), 6.8 (non-market approaches like technology transfer). 3. Emission Scopes: Scope 1 (direct from owned sources), Scope 2 (purchased electricity/energy), Scope 3 (value chain including purchased goods, business travel, product use). 4. CBAM Sectors: Cement, iron and steel, aluminum, fertilizers, electricity, hydrogen; transitional period 2023-2026, full implementation from 2027. 5. Standards: GHG Protocol (corporate accounting), ISO 14064 (verification), PAS 2050 (product footprints), TCFD (climate disclosure), CDP (corporate reporting). 6. Constitutional Basis: Article 48A (state duty to protect environment), Article 51A(g) (citizen duty for environmental protection). 7. Key Terms: Additionality (proving reductions are additional), Carbon leakage (emissions shifting to unregulated areas), MRV (monitoring, reporting, verification), Double counting (same reduction counted twice). 8. Market Types: Compliance markets (mandatory regulations), Voluntary markets (corporate CSR/branding), Primary markets (direct from projects), Secondary markets (trading existing credits).

Mains Revision Notes

1
Economic Theory: Carbon pricing internalizes environmental externalities, addresses market failure of free atmospheric capacity, creates financial incentives for innovation and efficiency. Price vs quantity instruments trade-off between cost certainty and environmental certainty. 2. Policy Design Considerations: Coverage scope, allocation methods, price management mechanisms, revenue use, competitiveness impacts, distributional effects, international linkages. 3. India's Approach: Development-compatible design through energy intensity targets, sectoral focus on large emitters, gradual expansion, integration with renewable energy policies, preparation for international linkages. 4. Implementation Challenges: MRV system development, institutional capacity building, market liquidity, price volatility management, stakeholder engagement, technology transfer facilitation. 5. International Cooperation: Article 6 implementation requiring robust accounting, avoiding double counting, ensuring environmental integrity, facilitating developing country participation, linking with NDCs. 6. Corporate Integration: ESG reporting requirements, supply chain engagement, green finance access, investor expectations, consumer preferences, regulatory compliance costs. 7. Future Directions: Sectoral expansion beyond industry, integration with transport and buildings, voluntary market development, international market linkages, technology innovation support, just transition considerations. 8. Policy Complementarities: Integration with renewable energy policies, energy efficiency programs, industrial policy, trade policy, fiscal instruments, regulatory frameworks.

Vyyuha Quick Recall

Vyyuha Quick Recall - CARBON TRADE: C(alculation methods - GHG Protocol, 3 scopes, activity data × emission factors), A(rticle 6 mechanisms - 6.2 bilateral, 6.4 centralized, 6.