Question: CBDR-RC principle in global climate governance — evolution, application, and tensions between equity and universal responsibility
Introduction
The principle of Common But Differentiated Responsibilities and Respective Capabilities (CBDR-RC) anchors international climate law, balancing the shared obligation to address climate change with recognition of unequal historical contributions and developmental capacities.
Body
1. Origins and Formal Articulation
CBDR-RC was formally enshrined in Principle 7 of the Rio Declaration on Environment and Development (1992) and the UNFCCC. It acknowledges that while all states share responsibility for environmental protection, developed nations bear a greater burden owing to their cumulative historical emissions and superior financial and technological capacities.
2. Operationalisation under the Kyoto Protocol
The Kyoto Protocol operationalised CBDR-RC most explicitly by imposing legally binding emission reduction targets exclusively on Annex I (developed) countries. Developing nations, including major emitters like China and India, were exempt from binding targets — a design reflecting differentiated responsibility but later criticised for inadequate global coverage.
3. Paris Agreement — Evolution, Not Abandonment
The Paris Agreement did not abandon CBDR-RC; it reinterpreted it. By requiring all parties to submit Nationally Determined Contributions (NDCs), it introduced universal participation while preserving differentiation through self-determined targets, differentiated finance obligations, and enhanced support commitments for developing nations. This 'dynamic differentiation' reflects evolved equity rather than its erasure.
4. Governance Tensions
Developed countries often push for convergence of obligations, while developing nations invoke CBDR-RC to protect policy space for growth. Operationalising 'respective capabilities' in NDC ambition assessments, climate finance delivery, and technology transfer remains a persistent negotiating fault line in UNFCCC processes.
Conclusion
CBDR-RC remains indispensable to legitimate global climate governance. Its future lies not in rigid bifurcation or uniform obligation, but in calibrated differentiation that aligns ambition with accountability across all development trajectories.
Word count: 249
PYQ 2025
Consider the following statements:
I. India's carbon dioxide (CO2) emission is less than 0.5 t CO2 per person.
II. In terms of CO2 emissions from fuel combustion, India ranks second in the Asia-Pacific region.
III. In India, electricity and heat producers are the largest source of CO2 emissions.
Which of the statements given above is/are correct?
PYQ
Consider the following statements regarding the Global Warming Potential (GWP) of greenhouse gases:
I. Nitrous oxide (N2O) has a higher GWP over a 100-year horizon than methane (CH4).
II. Hydrofluorocarbons (HFCs), though not ozone-depleting, are potent greenhouse gases regulated under the Kigali Amendment.
III. Black carbon is classified as a greenhouse gas under the UNFCCC framework.
Which of the statements given above is/are correct?
PYQ
With reference to carbon markets under Article 6 of the Paris Agreement, which of the following pairs is/are correctly matched?
I. Article 6.2 — Bilateral cooperative approaches allowing internationally transferred mitigation outcomes (ITMOs)
II. Article 6.4 — A centralized UN-supervised carbon crediting mechanism replacing the CDM
III. Article 6.8 — Market-based approaches for non-market-based cooperation
Select the correct answer using the code given below:
PYQ
Consider the following statements about the IPCC Sixth Assessment Report (AR6):
I. The AR6 Synthesis Report confirms that global surface temperature has already exceeded 1.5°C above pre-industrial levels on a 20-year average basis.
II. The report states that limiting global warming to 1.5°C requires global CO2 emissions to reach net zero around mid-century.
III. AR6 identifies methane emission reduction as the fastest lever for limiting peak warming.
Which of the statements given above is/are correct?
PYQ
Consider the following statements about India's climate commitments under the Paris Agreement (Updated NDC, 2022):
I. India has committed to achieve about 50% cumulative electric power installed capacity from non-fossil fuel based energy resources by 2030.
II. India's Updated NDC includes a target to reduce the emissions intensity of GDP by 45% by 2030 compared to 2005 levels.
III. India has committed to a net-zero emissions target by 2050.
Which of the statements given above is/are correct?