Maarg Manthan · Topic 20.11

Carbon Neutrality Concept and Negative Emissions

Environment & Ecology › Protected Areas Lists and Recent Developments in Environment · Topic 20.11

Carbon neutrality means that the carbon dioxide released into the atmosphere by an activity, organisation or country is balanced by an equal amount removed or offset, so that there is no net addition. It is often used loosely with net zero, but net zero usually covers all greenhouse gases and requires deep cuts in emissions with only the hard-to-abate residual emissions balanced by removals. Negative emissions, or carbon dioxide removal (CDR), refers to activities that remove CO2 from the atmosphere and store it durably, so that more is taken out than emitted. The Paris Agreement calls for a balance between emissions by sources and removals by sinks in the second half of the century. The IPCC finds that nearly all pathways limiting warming to 1.5 degrees Celsius need some CDR, and that global CO2 emissions must reach net zero around 2050. Methods include afforestation and reforestation, soil carbon and biochar, bioenergy with carbon capture and storage (BECCS), direct air capture with storage (DACCS), enhanced rock weathering and ocean-based approaches. Carbon capture, utilisation and storage (CCUS) captures CO2 from industrial sources and either stores or uses it. India announced at COP26 in Glasgow in 2021 that it aims to reach net zero emissions by 2070, along with 500 GW of non-fossil electricity capacity, 50 percent of energy from renewables and a one billion tonne cut in emissions by 2030. India notified a Carbon Credit Trading Scheme in 2023 under the Energy Conservation Act, as amended in 2022. Hedge details: pledges and technology costs change, so check the latest updates.

5 min read · UPSC Prelims · Environment & Ecology · Protected Areas Lists and Recent Developments in Environment

At a Glance

Carbon neutral Emissions balanced by removals
Net zero All gases, with residuals removed
Negative emissions Removal exceeds emissions
India’s goal Net zero by 2070
Methods Forests, BECCS, DAC, biochar
Exam link UPSC Prelims, Environment & Ecology: Protected Areas Lists and Recent Developments in Environment

Where Does It Fit?

This topic follows the HFC topic and moves from specific gases to the overall climate goal, with the next topic dealing with geo-engineering options. Previous topic: India’s Commitment to Eliminate HFCs by 2030 (Kigali Agreement). Next topic: Geo-Engineering for Climate Change and Sequestering CO2.

What Do the Key Terms Mean?

Term	Meaning
Carbon neutrality	Balance between CO2 emitted and CO2 removed or offset, so no net addition
Net zero	Balance for all greenhouse gases, after deep cuts, with residual emissions removed
Negative emissions	Net removal of CO2 from the atmosphere, more than is emitted
Carbon offset	Credit from a project that cuts or removes emissions elsewhere
CDR	Carbon dioxide removal, human activities that take CO2 from the air for durable storage
CCUS	Carbon capture, utilisation and storage at industrial sources
Paris link	Balance between sources and sinks in the second half of the century

Which Removal Methods Exist?

Afforestation and reforestation: trees take up CO2 as they grow; risk of reversal by fire
Soil carbon and biochar: farming practices and charred biomass add carbon to soil
BECCS: bioenergy plants with capture and storage
DACCS: machines capture CO2 from air; high energy and cost
Enhanced weathering: spreading crushed rock that reacts with CO2
Blue carbon: mangroves, seagrass and salt marsh
Ocean alkalinity: adding minerals to seawater; at research stage
Risks: permanence, land competition, cost and moral hazard

What Else Should You Remember?

Gross versus net: net zero allows removals to balance remaining emissions
Residual emissions: from sectors such as aviation, cement and farming that are hard to cut
Scope 1: direct emissions from owned sources
Scope 2: emissions from purchased electricity
Scope 3: other indirect emissions in the value chain
Net zero pledges: China 2060, United States and EU 2050, India 2070
India’s COP26 pledge: net zero by 2070, 500 GW non-fossil capacity by 2030, 50 percent renewable electricity, one billion tonne emission cut and 45 percent lower emission intensity
Carbon intensity: India updated its NDC in 2022 for 45 percent cut from 2005 levels by 2030
Carbon sink goal: additional 2.5 to 3 billion tonnes CO2 equivalent through forests and trees by 2030
Green Hydrogen Mission: launched in 2023
Carbon Credit Trading Scheme: notified in June 2023 under the Energy Conservation Act, as amended in 2022
Bureau of Energy Efficiency: administers the scheme
Voluntary carbon market: private credits, with quality concerns
Article 6: Paris Agreement rules for carbon markets
CCUS in India: a pilot stage, with policy work by NITI Aayog and the Department of Science and Technology
Utilisation: CO2 for chemicals, fuels and building materials
Storage: deep saline aquifers, depleted oil and gas fields
Bhutan: often cited as carbon negative due to forests and hydropower
Criticism of offsets: double counting, weak additionality and delay of real cuts
Moral hazard: reliance on future removal could slow emission cuts
Costs: direct air capture is far costlier than forest-based removal
Link to previous: see India’s Commitment to Eliminate HFCs by 2030 (Kigali Agreement)
Link to next: see Geo-Engineering for Climate Change and Sequestering CO2
Link to net zero: see India’s Position on Climate Change Policy
Caution: pledges and costs are updated, so check the latest reports
Exam hint: remember net zero 2070, the methods and the difference between neutral and negative
Land need: Large scale removal by trees or bioenergy crops needs land, which competes with food and biodiversity
Storage permanence: Carbon in trees can return to the air by fire or felling, while geological storage is more durable
Role of farmers: Agroforestry and soil carbon projects can give income if measurement is simple and payment is fair
Equity: Developed countries have larger historical emissions and are expected to reach neutrality earlier
Link to jobs: Transition to clean power, hydrogen and efficiency creates new industries but also affects coal regions
Measurement: Reliable monitoring, reporting and verification is needed for credible credits

Why Does It Matter for the Exam?

Net zero: India 2070
Methods: Forests, BECCS, DAC
Neutral vs negative: Balance vs net removal
Current affairs link: Carbon market
Common errors: treating offsets as emission cuts

As an analytical point, removals are needed for the last portion of emissions, not as a substitute for cutting emissions now. Durable storage, honest accounting and equity decide whether carbon neutrality is credible.

Why Is This Topic Important?

Cut first Reduce emissions
Remove Residuals
Account Honestly

What Came Next?

The next topic covers geo-engineering for climate change and sequestering carbon dioxide. Next topic: Geo-Engineering for Climate Change and Sequestering CO2.

Key People and Terms

Net zero Balanced emissions
CDR Carbon dioxide removal
BECCS Bioenergy with capture
DACCS Direct air capture
CCUS Capture, use, storage
CCTS Carbon Credit Trading Scheme

Exam Corner

Points to Remember

India net zero 2070.
Neutral means balance.
Negative means net removal.
Methods: BECCS, DAC.
Carbon scheme 2023.

Do Not Confuse With

Carbon neutral and net zero CO2 balance versus all gases
Offsets and removals Credits elsewhere versus actual removal
CCS and CCUS Storage only versus storage and use

Memory Hook

Neutral balances, zero nets all gases; negative takes more than it passes.

Mains Angle

Questions ask for definitions, methods and India’s goal. These points help.

Terms Neutral, zero
Methods CDR
India 2070

A Question You May Face

An original practice question, not a past paper question.

“Explain carbon neutrality and negative emissions. What role can carbon dioxide removal play in India’s net zero goal?”

How to Answer

Terms Define.
Methods CDR.
India 2070.
Risks Offsets.

GS Relevance

Prelims: definitions, methods, India's 2070 target. GS Paper 3: climate mitigation and technology.

Frequently Asked Questions

What is carbon neutrality?

Carbon neutrality means balancing the carbon dioxide emitted by an activity, organisation or country with an equal amount removed from the atmosphere or offset elsewhere, so that there is no net addition. It is often used interchangeably with net zero, though net zero normally covers all greenhouse gases and stresses deep emission cuts first.

What are negative emissions?

Negative emissions are removals of carbon dioxide from the atmosphere that exceed emissions, so the net result is a decline in atmospheric carbon. Methods include forests, soil carbon, biochar, bioenergy with carbon capture and storage, direct air capture, and enhanced weathering. Most 1.5 degree pathways need some such removal.

What is India's net zero target?

At COP26 in Glasgow in 2021, India announced that it aims to reach net zero emissions by 2070. It also set goals for 2030: 500 GW of non-fossil electricity capacity, half of energy needs from renewables, a one billion tonne cut in projected emissions and a 45 percent cut in emission intensity.

What is CCUS?

Carbon capture, utilisation and storage captures carbon dioxide from industrial or power plant flue gases, then either uses it, for example in chemicals or building materials, or stores it deep underground in saline aquifers or depleted oil and gas fields. In India it is at a pilot stage, with policy work under way.

What is the Carbon Credit Trading Scheme?

The Carbon Credit Trading Scheme is a domestic carbon market notified in 2023 under the Energy Conservation Act, as amended in 2022. It sets up a system for trading carbon credits among entities that cut emissions below targets, with the Bureau of Energy Efficiency as the administrator. Details and timelines should be checked.

PYQ Practice — Statement Analysis

1 India aims for net zero by 2070.

True

Announced at COP26.

2 Negative emissions mean no emissions.

False

They mean net removal.

3 BECCS combines bioenergy with carbon capture.