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Carbon Credits, Net Zero and Green Finance Notes

Exam notes on carbon credits and carbon markets: Kyoto mechanisms, Article 6 of the Paris Agreement, net zero pledges, India's CCTS and green bonds.

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Carbon Credits, Net Zero and Green Finance Notes — GK24 title card
Carbon Credits, Net Zero and Green Finance Notes — GK24 title card

A carbon credit is a tradable permit that stands for one tonne of carbon dioxide equivalent, written as 1 tCO2e, that has been kept out of the atmosphere by cutting emissions, avoiding them or removing them. The reasoning behind it is simple. The atmosphere does not care where a tonne of carbon dioxide is saved, so a tonne saved cheaply in one country helps the climate exactly as much as a tonne saved expensively in another. Attaching a price to that tonne lets the cheapest reductions happen first. Examiners return to this topic for its vocabulary, for the treaties that created the trading mechanisms and for India's own new carbon market; it also stays in the news because Indian municipal bodies have begun to earn credits from waste-to-energy, bio-CNG and sewage-treatment projects.

How a carbon credit is created

Every credit starts from a baseline, which is the quantity of greenhouse gas that would have been released if the project had never been built. The difference between the baseline and the project's actual emissions is the saving that can be credited. Three tests decide whether that saving is genuine. Additionality asks whether the project would have happened anyway for commercial reasons; if it would, no credit is due. Permanence asks whether the carbon stays locked away, a serious question for forestry projects that a fire can undo. Leakage asks whether the emissions have merely shifted somewhere else. The saving is then measured, reported and verified by an accredited third party, a cycle abbreviated as MRV, and the credit is entered in a registry. When a buyer uses a credit to offset its own emissions, the credit is retired so that it cannot be counted or sold twice.

Carbon tax and cap-and-trade

Governments price carbon in two broad ways. A carbon tax fixes the price per tonne and leaves the quantity of emissions to the market. A cap-and-trade or emissions trading system fixes the quantity by issuing a limited number of allowances and leaves the price to the market; firms that beat their cap sell their surplus to firms that overshoot. The European Union Emissions Trading System, launched in 2005, was the world's first large international scheme of this kind. A compliance market is one that a law obliges firms to take part in; a voluntary market is one in which companies buy credits by choice, usually to support a net zero claim, and it is this segment that attracts the charge of greenwashing.

Kyoto Protocol and its three mechanisms

The Kyoto Protocol was adopted in 1997 at COP3 in Japan and entered into force in 2005. It set binding emission-reduction targets for developed countries listed in Annex I of the UNFCCC and gave them three flexible mechanisms to meet those targets cheaply.

MechanismArticleCredit unitIdea
Clean Development MechanismArticle 12Certified Emission Reduction (CER)A developed country funds a project in a developing country
Joint ImplementationArticle 6Emission Reduction Unit (ERU)One developed country funds a project in another
International Emissions TradingArticle 17Assigned Amount Unit (AAU)Countries trade parts of their emission allowance

India had no reduction target under Kyoto but hosted a very large number of Clean Development Mechanism projects and was among the biggest sellers of CERs, mainly from renewable energy, energy efficiency and industrial gas projects. A share of the proceeds from CERs financed the Adaptation Fund.

Paris Agreement and Article 6

The Paris Agreement was adopted at COP21 in 2015 and came into force in November 2016. Unlike Kyoto it asks every country, developed and developing, to submit a Nationally Determined Contribution. Its Article 6 carries the market machinery. Article 6.2 allows two countries to cooperate bilaterally and transfer Internationally Transferred Mitigation Outcomes, with a corresponding adjustment in the seller's accounts so that the same tonne is not claimed twice. Article 6.4 sets up a centralised crediting mechanism supervised by a UN body, the successor to the Clean Development Mechanism. Article 6.8 covers non-market approaches such as finance, technology transfer and capacity building.

Net zero and India's pledges

Net zero means that whatever greenhouse gas a country still emits is balanced by an equal quantity absorbed by sinks such as forests, soil and engineered carbon removal. It is a balance, not the end of all emissions, which is why it is also called carbon neutrality. At COP26 in Glasgow in 2021 India announced a five-part pledge, the Panchamrit: non-fossil energy capacity of 500 GW by 2030, half of its energy requirement from renewables by 2030, a cut of one billion tonnes in projected emissions by 2030, a 45 per cent reduction in the emission intensity of GDP by 2030 against the 2005 level, and net zero by 2070. The first two targets of that list, in updated form, are the heart of India's revised Nationally Determined Contribution.

India's carbon market and green finance

India already ran two certificate markets before it had a carbon market. The Perform, Achieve and Trade scheme gives energy-intensive plants a specific energy-consumption target and rewards those that beat it with Energy Saving Certificates, or ESCerts. Renewable Energy Certificates let an obliged buyer meet its renewable purchase obligation without owning a plant. Both trade on the power exchanges. The Energy Conservation (Amendment) Act, 2022 then empowered the Central Government to notify a Carbon Credit Trading Scheme, under which the Bureau of Energy Efficiency acts as administrator, the Grid Controller of India as registry and the Central Electricity Regulatory Commission as regulator; it has a compliance leg for obligated entities and an offset leg for voluntary projects. On the finance side, India published a Sovereign Green Bonds framework in 2022 and the Reserve Bank issued the first such bonds on the Government's behalf in January 2023, the money being earmarked for renewable energy, clean transport and similar spending. The Reserve Bank has also framed rules for green deposits with banks, and the Securities and Exchange Board of India requires large listed companies to publish a Business Responsibility and Sustainability Report. Internationally, the Green Climate Fund, the Global Environment Facility and the Adaptation Fund channel money to developing countries, and the Loss and Damage Fund agreed at COP27 was operationalised at COP28.

Exam Point of View

Three kinds of questions dominate. First, straight definitions: what one carbon credit equals, what CER, ERU, AAU, ITMO and ESCert stand for, and which treaty or article created each. Second, pairing questions: Kyoto mechanism with its article and its credit unit, or Indian scheme with the body that runs it, where the trap is to put the Bureau of Energy Efficiency under the environment ministry instead of the power ministry, or to credit the Environment (Protection) Act, 1986 with the Carbon Credit Trading Scheme instead of the Energy Conservation Act. Third, the Panchamrit numbers and the net zero years: India 2070, China 2060 and most developed countries 2050 are mixed up deliberately, as are the COP at which each was announced. Remember that Kyoto bound only Annex I countries while Paris asks a contribution of everyone, and that net zero is a balance of emissions and removals, not zero emissions.

Important Facts

One carbon creditOne tonne of carbon dioxide equivalent, 1 tCO2e
Kyoto ProtocolAdopted 1997 at COP3, Kyoto; entered into force in 2005
Clean Development MechanismArticle 12 of the Kyoto Protocol; credits are CERs
Joint ImplementationArticle 6 of the Kyoto Protocol; credits are ERUs
Emissions trading under KyotoArticle 17; units are Assigned Amount Units (AAUs)
Paris AgreementAdopted at COP21 in 2015; in force from November 2016
Market mechanisms in Paris AgreementArticle 6, with 6.2 ITMOs, 6.4 central crediting, 6.8 non-market
India's net zero year2070, announced at COP26, Glasgow, in 2021
Panchamrit non-fossil target500 GW of non-fossil energy capacity by 2030
Emission intensity target45 per cent reduction in emission intensity of GDP by 2030 over 2005
Carbon Credit Trading SchemeEnabled by the Energy Conservation (Amendment) Act, 2022
CCTS administratorBureau of Energy Efficiency, under the Ministry of Power
ESCertsEnergy Saving Certificates under the Perform, Achieve and Trade scheme
First sovereign green bonds in IndiaIssued in January 2023, financial year 2022-23
World's first large emissions trading systemEuropean Union Emissions Trading System, launched 2005
Loss and Damage FundAgreed at COP27, operationalised at COP28

Practice MCQs on this topic

Q1.Environment & EcologyEasy

One carbon credit represents the reduction of how much greenhouse gas?

  1. A.One kilogram of carbon dioxide equivalent
  2. B.One hundred kilograms of carbon dioxide equivalent
  3. C.One tonne of carbon dioxide equivalent
  4. D.One thousand tonnes of carbon dioxide equivalent
Show answer

Correct answer: C. One tonne of carbon dioxide equivalent

Explanation

The correct answer is C, one tonne of carbon dioxide equivalent. The tonne is the standard trading unit in every carbon market, compliance or voluntary, and it is written as 1 tCO2e. The word equivalent matters: gases other than carbon dioxide are converted into carbon dioxide terms using their global warming potential, so a much smaller quantity of methane or nitrous oxide can earn one credit. A is wrong because a kilogram is far too small to be a market unit; no registry issues credits in kilograms. B is wrong for the same reason, and a hundred kilograms is simply a tenth of the real unit, a figure offered to catch a candidate who half-remembers the tonne. D is wrong because a thousand tonnes is the scale of a whole small project's annual saving, not of a single credit; a project of that size would be issued a thousand separate credits, which is exactly how buyers are able to purchase them in small lots.

Q2.Environment & EcologyEasy

The Clean Development Mechanism was created by which international agreement?

  1. A.Montreal Protocol
  2. B.Kyoto Protocol
  3. C.Cartagena Protocol
  4. D.Nagoya Protocol
Show answer

Correct answer: B. Kyoto Protocol

Explanation

The correct answer is B, the Kyoto Protocol. Adopted in 1997 at COP3 in Japan and in force from 2005, it set binding emission targets for developed countries and gave them three flexible mechanisms to meet them; the Clean Development Mechanism, under Article 12, let a developed country fund an emission-reduction project in a developing country and claim the saving as Certified Emission Reductions. A is wrong because the Montreal Protocol of 1987 deals with ozone-depleting substances such as chlorofluorocarbons and has no emissions-trading machinery. C is wrong because the Cartagena Protocol, under the Convention on Biological Diversity, governs the transboundary movement of living modified organisms. D is wrong because the Nagoya Protocol, also under that Convention, covers access to genetic resources and the fair sharing of benefits from their use. Only the Kyoto Protocol belongs to the climate treaty family that creates carbon credits.

Q3.Environment & EcologyMedium

Credits generated under the Clean Development Mechanism are known as

  1. A.Emission Reduction Units
  2. B.Assigned Amount Units
  3. C.Certified Emission Reductions
  4. D.Renewable Energy Certificates
Show answer

Correct answer: C. Certified Emission Reductions

Explanation

The correct answer is C, Certified Emission Reductions, abbreviated CER, each equal to one tonne of carbon dioxide equivalent and issued only after an accredited third party verifies the saving. India hosted a very large number of such projects and was among the world's biggest sellers of CERs. A is wrong because Emission Reduction Units arise from Joint Implementation, where one developed country funds a project in another developed country, not in a developing one. B is wrong because Assigned Amount Units are the emission allowances handed to developed countries themselves under Article 17, traded directly between governments rather than earned by a project. D is wrong because Renewable Energy Certificates are an Indian domestic instrument that lets an obliged buyer meet its renewable purchase obligation without owning a generating plant; they measure electricity from renewable sources, not avoided greenhouse gas, and have no standing under the Kyoto Protocol.

Q4.Environment & EcologyMedium

Which article of the Paris Agreement provides for cooperative approaches and a centralised crediting mechanism?

  1. A.Article 2
  2. B.Article 6
  3. C.Article 9
  4. D.Article 14
Show answer

Correct answer: B. Article 6

Explanation

The correct answer is B, Article 6. It holds all the market machinery of the Paris Agreement: Article 6.2 lets two countries cooperate bilaterally and transfer Internationally Transferred Mitigation Outcomes with a corresponding adjustment so the same tonne is not counted twice, Article 6.4 establishes a centralised crediting mechanism supervised by a United Nations body as the successor to the Clean Development Mechanism, and Article 6.8 covers non-market approaches such as finance and technology transfer. A is wrong because Article 2 states the purpose of the agreement, including holding the temperature rise well below two degrees Celsius. C is wrong because Article 9 deals with climate finance from developed to developing countries. D is wrong because Article 14 provides for the global stocktake, the periodic review of collective progress. Note the coincidence candidates stumble on: Article 6 of the Kyoto Protocol is Joint Implementation, a different thing.

Q5.Environment & EcologyEasy

At which Conference of the Parties did India announce its target of net zero emissions by 2070?

  1. A.COP21, Paris
  2. B.COP24, Katowice
  3. C.COP26, Glasgow
  4. D.COP28, Dubai
Show answer

Correct answer: C. COP26, Glasgow

Explanation

The correct answer is C, COP26 in Glasgow, held in 2021, where India placed a five-part pledge known as the Panchamrit before the conference: 500 GW of non-fossil energy capacity by 2030, half its energy requirement from renewables by 2030, a cut of one billion tonnes in projected emissions by 2030, a 45 per cent fall in the emission intensity of its gross domestic product by 2030 over the 2005 level, and net zero by 2070. A is wrong because COP21 in 2015 produced the Paris Agreement itself, years before any Indian net zero date was named. B is wrong because COP24 in Poland in 2018 is remembered for the Paris rulebook on transparency and accounting. D is wrong because COP28 in 2023 is associated with the first global stocktake, the operationalisation of the Loss and Damage Fund and the call to transition away from fossil fuels, not with India's net zero announcement.

Q6.Environment & EcologyMedium

India's Carbon Credit Trading Scheme was made possible by an amendment to which law?

  1. A.Environment (Protection) Act, 1986
  2. B.Electricity Act, 2003
  3. C.Energy Conservation Act, 2001
  4. D.Air (Prevention and Control of Pollution) Act, 1981
Show answer

Correct answer: C. Energy Conservation Act, 2001

Explanation

The correct answer is C, the Energy Conservation Act, 2001. The Energy Conservation (Amendment) Act, 2022 inserted the power for the Central Government to specify a Carbon Credit Trading Scheme, which is why the market sits with the Ministry of Power and its Bureau of Energy Efficiency rather than with the environment ministry. A is wrong, and is the commonest trap, because the Environment (Protection) Act, 1986 is an umbrella law for standards, notifications and eco-sensitive zones, not for tradable credits. B is wrong because the Electricity Act, 2003 governs generation, transmission, distribution and tariff regulation; renewable purchase obligations sit there, but carbon credits do not. D is wrong because the Air Act, 1981 created the pollution control boards and deals with local air pollutants such as particulate matter and sulphur dioxide, which are regulated by consent and standards rather than by trading.

Q7.Environment & EcologyMedium

Which body is the administrator of India's Carbon Credit Trading Scheme?

  1. A.Central Pollution Control Board
  2. B.Bureau of Energy Efficiency
  3. C.Securities and Exchange Board of India
  4. D.NITI Aayog
Show answer

Correct answer: B. Bureau of Energy Efficiency

Explanation

The correct answer is B, the Bureau of Energy Efficiency, a statutory body under the Energy Conservation Act, 2001 and the Ministry of Power, which already ran the Perform, Achieve and Trade scheme and so had the measurement and verification experience the carbon market needs. In the same scheme the Grid Controller of India keeps the registry and the Central Electricity Regulatory Commission regulates trading. A is wrong because the Central Pollution Control Board, under the environment ministry, sets and enforces pollution standards and monitors air and water quality; it issues consents, not credits. C is wrong because the Securities and Exchange Board of India regulates securities markets and the disclosure rules for green debt, not the carbon credit itself. D is wrong because NITI Aayog is a policy think tank with no regulatory or administrative power over a trading scheme.

Q8.Environment & EcologyHard

Energy Saving Certificates, or ESCerts, are issued under which scheme?

  1. A.Perform, Achieve and Trade
  2. B.UJALA
  3. C.FAME India
  4. D.Saubhagya
Show answer

Correct answer: A. Perform, Achieve and Trade

Explanation

The correct answer is A, Perform, Achieve and Trade, usually shortened to PAT, a market-based scheme under the National Mission for Enhanced Energy Efficiency. Each designated consumer in an energy-intensive industry such as cement, steel, aluminium, fertiliser or thermal power is given a specific energy consumption target; a plant that beats its target earns ESCerts, and a plant that misses it must buy them, which the power exchanges make possible. B is wrong because UJALA is the scheme that distributed LED bulbs at low cost to households, a direct efficiency programme with no certificates. C is wrong because FAME India subsidises electric and hybrid vehicles and charging infrastructure. D is wrong because Saubhagya was the household electrification scheme that aimed to connect every willing unelectrified home. Only PAT trades certificates, which is why it is treated as the forerunner of India's carbon market.

Q9.Environment & EcologyMedium

In which financial year did India issue its first sovereign green bonds?

  1. A.2018-19
  2. B.2020-21
  3. C.2022-23
  4. D.2024-25
Show answer

Correct answer: C. 2022-23

Explanation

The correct answer is C, 2022-23. The Union Budget for that year announced the intention, the Government published a Sovereign Green Bonds framework in 2022, and the Reserve Bank of India auctioned the first tranche on the Government's behalf in January 2023, with the proceeds earmarked for renewable energy, clean transport, energy efficiency, sustainable water management and afforestation. A is wrong because in 2018-19 only Indian companies and public sector undertakings had issued green bonds; the sovereign had not. B is wrong because 2020-21 was dominated by pandemic borrowing and carried no green issue. D is wrong because by 2024-25 sovereign green bonds were already an established part of the borrowing calendar rather than a first. Candidates should separate the corporate green bonds that began much earlier from the sovereign issue of January 2023.

Q10.Environment & EcologyMedium

Under the Panchamrit announced at COP26, India set a target of non-fossil energy capacity of

  1. A.175 GW by 2022
  2. B.450 GW by 2030
  3. C.500 GW by 2030
  4. D.1,000 GW by 2047
Show answer

Correct answer: C. 500 GW by 2030

Explanation

The correct answer is C, 500 GW by 2030, the first of the five Panchamrit commitments placed before COP26 in Glasgow in 2021, the others being half of India's energy requirement from renewables by 2030, a billion tonnes off projected emissions by 2030, a 45 per cent cut in the emission intensity of gross domestic product by 2030 against 2005, and net zero by 2070. A is wrong because 175 GW by 2022 was the earlier renewable energy target announced in 2015, a different and much smaller commitment. B is wrong because 450 GW was the figure India spoke of before Glasgow and is the classic distractor; the Panchamrit raised it. D is wrong because no such thousand-gigawatt pledge was made at Glasgow. Note that the 500 GW target counts all non-fossil capacity, so large hydro and nuclear are included along with solar and wind.

Frequently Asked Questions

What exactly is one carbon credit worth in emissions?

One carbon credit stands for one tonne of carbon dioxide equivalent, written 1 tCO2e. The equivalent part matters: other greenhouse gases are converted into carbon dioxide terms using their global warming potential, so a smaller quantity of a powerful gas such as methane can earn the same credit as a tonne of carbon dioxide.

What is the difference between a carbon tax and a carbon market?

A carbon tax fixes the price of a tonne of carbon and lets the quantity of emissions settle wherever it will. A carbon market, or cap-and-trade system, fixes the quantity by issuing a limited number of allowances and lets the price settle in trading. A tax gives certainty about price, a market gives certainty about the total emitted.

Is net zero the same as zero emissions?

No. Net zero means the greenhouse gas a country still releases is balanced by an equal quantity taken out of the atmosphere by sinks such as forests and soil or by engineered removal. Emissions continue; they are offset. Zero emissions, sometimes called absolute zero, would mean releasing nothing at all.

Which law allowed India to set up a carbon credit market?

The Energy Conservation (Amendment) Act, 2022 amended the Energy Conservation Act, 2001 and empowered the Central Government to specify a Carbon Credit Trading Scheme. The Bureau of Energy Efficiency administers it, the Grid Controller of India keeps the registry and the Central Electricity Regulatory Commission regulates the trading.

What are sovereign green bonds?

They are government borrowings whose proceeds are earmarked for projects with environmental benefit, such as renewable energy, clean transport, energy efficiency and afforestation. India released a framework for them in 2022 and the Reserve Bank of India issued the first tranche on the Government's behalf in January 2023.

Why is additionality important in a carbon project?

A credit is meant to pay for a reduction that would not have happened otherwise. If a factory would have installed an efficient boiler anyway because it saves money, crediting that boiler creates a paper saving with no climate benefit, and the buyer who retires the credit keeps emitting. Additionality is the test that keeps credits honest.

Sources

  • The Paris Agreement and Article 6 cooperative approaches — United Nations Framework Convention on Climate Change
  • Kyoto Protocol: mechanisms and units — United Nations Framework Convention on Climate Change
  • The Energy Conservation (Amendment) Act, 2022 — Ministry of Law and Justice, Government of India
  • Framework for Sovereign Green Bonds — Ministry of Finance, Government of India
  • Perform, Achieve and Trade and the Carbon Credit Trading Scheme — Bureau of Energy Efficiency, Ministry of Power
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