Topic 28: EIA & Coal/Thermal Power Impacts

The "gatekeeper" chapter — how India screens projects for environmental damage, and why coal/thermal power is its biggest test case. Scoring core: the EIA process & stages, the EIA Notification 2006 (Category A vs B, EAC/SEIAA), public consultation, the impacts of coal mining & thermal power (fly ash, emissions, water), the FGD & fly-ash norms, and the debate around just transition and the controversial Draft EIA 2020. Built from process to the latest FGD-deadline and coal current affairs.

UPSC Prelims · Mains GS-III EIA Notification 2006 ~20 min read Coal · Fly Ash · FGD High Weight · Static + Current

1.EIA — Concept & Importance
2.EIA Process & Stages
3.EIA Notification 2006 & Categories
4.Public Consultation & Bodies
5.Coal Mining Impacts
6.Thermal Power Plant Impacts
7.Fly Ash, FGD & Emission Norms
8.Clean Coal & Just Transition
9.Critiques & Draft EIA 2020
10.Current Affairs Link (2024–2026)
11.Prelims PYQ Practice
12.Mains PYQ Practice
★15-Minute Revision Box

Conceptual Clarity — Why this Topic Matters

EIA is where UPSC tests whether you understand India's project-clearance machinery and the environment-development trade-off. Three question patterns recur:

Definitional / static: "what is EIA?", stages (screening, scoping, EMP), Category A vs B, which body clears what (EAC/MoEFCC vs SEIAA/SEAC). Pure recall — a stage/category table settles it.
Statement-elimination (2–4 statements): matching stage↔authority↔document — e.g. public hearing is part of "public consultation", Category A cleared by the Centre, EMP = Environmental Management Plan. One wrong pairing sinks the option.
Applied / current: Draft EIA 2020 controversy, FGD-installation deadlines for thermal plants, fly-ash utilisation, ex-post-facto clearance rulings, just-transition for coal districts. Mains GS-III links these to sustainable development & environmental democracy.

Highest-frequency themes: EIA stages · Notification 2006 categories · EAC/SEIAA · public consultation · coal & thermal impacts · fly ash & FGD · just transition · Draft EIA 2020.

1. EIA — Concept & Importance

Environmental Impact Assessment (EIA) is a formal study of the likely environmental effects of a proposed project before it is approved, so that harm can be predicted, prevented or minimised. It is the main tool integrating environment into development decisions.

1.1 Definition & Legal Basis

What: a planning tool that predicts environmental, social & health impacts and proposes an Environmental Management Plan (EMP) to mitigate them.
Legal basis: issued under the Environment (Protection) Act, 1986; first EIA Notification in 1994, replaced by the EIA Notification 2006.
Principle: operationalises "prevention is better than cure" and the precautionary principle.

1.2 Why EIA Matters

Function	Benefit	Example
Predict impacts	Anticipate damage early	Dam → submergence assessment
Mitigation (EMP)	Design safeguards	Green belt, effluent treatment
Public participation	Voice for affected people	Public hearing
Informed decision	Approve/reject/condition	EAC appraisal

Exam angle: EIA is anticipatory (before the project) and preventive. The EMP is its heart — the set of mitigation & monitoring measures. EIA is a subject in both Prelims (process) and Mains (development-vs-environment).

Fig 28.1 — The EIA process: screening → scoping (Terms of Reference) → public consultation → appraisal by EAC/SEAC → environmental clearance (EC) with conditions, followed by post-clearance monitoring of the EMP.

2. EIA Process & Stages

The EIA Notification 2006 lays down four core stages for obtaining Environmental Clearance (EC).

2.1 The Four Stages

Stage	What happens	Output
1. Screening	Decide if full EIA is needed (mainly for Category B)	B1 (needs EIA) or B2 (does not)
2. Scoping	EAC/SEAC frames Terms of Reference (ToR)	ToR for the EIA study
3. Public Consultation	Public hearing + written responses from stakeholders	Concerns incorporated
4. Appraisal	Detailed scrutiny of EIA/EMP by expert committee	Recommendation to grant/reject EC

2.2 Key Documents

EIA Report: baseline data, impact prediction, alternatives.
EMP (Environmental Management Plan): mitigation + monitoring measures — the operative core.
Environmental Clearance (EC): the final approval with conditions; monitored post-project.

Takeaway: remember the sequence Screening → Scoping → Public Consultation → Appraisal → EC. Screening is mainly for Category B; Category A always needs EIA. Post-clearance monitoring ensures conditions are met.

3. EIA Notification 2006 & Categories

The 2006 Notification decentralised clearances by splitting projects into Category A (Central) and Category B (State), based on size & potential impact.

3.1 Category A vs B

Feature	Category A	Category B
Size/impact	Large, high-impact	Smaller
Cleared by	MoEFCC on advice of EAC	State (SEIAA) on advice of SEAC
EIA needed?	Always	Only B1 (after screening); B2 exempt
Example	Major mining, large thermal plants	Smaller units, some building projects

3.2 Bodies

EAC — Expert Appraisal Committee (Central, for Category A).
SEIAA — State Environment Impact Assessment Authority (for Category B), advised by SEAC (State Expert Appraisal Committee).
PARIVESH — single-window online portal for applying/tracking clearances.

Prelims trap: Category A = Central clearance (MoEFCC/EAC); Category B = State clearance (SEIAA/SEAC). Only B1 requires a full EIA/public hearing; B2 does not. The legal parent is the Environment (Protection) Act 1986.

4. Public Consultation & Bodies

Public consultation is the democratic heart of EIA — it gives affected people and stakeholders a voice before clearance.

4.1 Two Components

Public Hearing: a physical meeting at/near the site, conducted by the State Pollution Control Board, for locally-affected persons.
Written responses: concerns from other stakeholders having a plausible stake.

4.2 Exemptions & Limits

Point	Detail
Not for B2	Category B2 projects skip public consultation
Exempt sectors	Some (e.g. certain modernisation, defence) exempt
Criticism	Hearings sometimes tokenistic, poorly publicised

4.3 The Institutional Chain

MoEFCC → policy & Category-A clearances (via EAC).
SPCB → conducts public hearings; monitors compliance.
NGT → adjudicates disputes; can quash faulty clearances.

Exam angle: public consultation = public hearing (by SPCB) + written responses. It is waived for Category B2 and some exempt categories — a frequent criticism that EIA has been diluted for "ease of doing business".

5. Coal Mining Impacts

Coal supplies the bulk of India's electricity but its extraction is among the most environmentally damaging activities — the biggest real-world test of EIA.

5.1 Environmental Impacts

Impact	Detail
Land & forest loss	Open-cast mining strips forests (central India coalfields)
Water	Acid mine drainage, groundwater depletion, contamination
Air & dust	Coal dust, particulate; mine fires (Jharia)
Subsidence	Ground collapse over old workings
Displacement	Tribal & forest-community eviction

5.2 Governance Tensions

Forest & tribal rights: clearances clash with the Forest Rights Act & gram-sabha consent.
Commercial coal mining: opened to private/auction — boosts output but raises impact concerns.
"Go/No-go" & inviolate forests: debate over which coal blocks are too ecologically sensitive to mine.

Mains angle: coal mining is the sharpest environment-vs-development conflict — energy security & jobs vs forests, water & tribal rights. Frame answers around EIA rigour, FRA consent and a phased just transition.

Fig 28.2 — Coal-to-power chain and its pollution outputs: mining feeds thermal plants that generate electricity but emit air pollutants (SO₂, NOx, PM, CO₂, Hg), produce fly/bottom ash, and discharge warm effluent.

6. Thermal Power Plant Impacts

Coal-based thermal plants are India's single largest source of industrial air pollution and a major water user.

6.1 Pollution Streams

Stream	Pollutant	Effect
Air	SO₂, NOx, PM, mercury, CO₂	Acid rain, respiratory disease, warming
Solid	Fly ash, bottom ash	Land use, heavy metals leaching
Water	Cooling-water intake & warm discharge	Thermal pollution, low dissolved O₂

6.2 Fly Ash — the Key Waste

What: fine, light residue from burning pulverised coal, captured by ESPs.
Hazard: contains heavy metals; ash-pond breaches cause slurry disasters.
Use: cement, bricks, road embankments, mine-void filling — 100% utilisation is the policy goal.

Exam angle: thermal plants are controlled via the 2015 emission standards (SO₂/NOx/PM/mercury) requiring FGD for SO₂, and the Fly Ash Utilisation Notification mandating ash re-use. Deadlines have been repeatedly extended — a recurring current-affairs hook.

7. Fly Ash, FGD & Emission Norms

India tightened thermal-plant pollution control through the 2015 emission standards and fly-ash rules — but slow compliance is a recurring theme.

7.1 Control Technologies

Technology	Targets	How
ESP (electrostatic precipitator)	Particulate / fly ash	Charges & collects ash particles
FGD (Flue-Gas Desulphurisation)	SO₂	Lime/limestone scrubbing of flue gas
Low-NOx burners / SCR	NOx	Combustion control / catalytic reduction
Ash ponds / dry disposal	Fly & bottom ash	Storage + utilisation

7.2 Norms & Compliance

2015 emission standards: first-ever SO₂, NOx, PM & mercury limits for thermal plants; mandated FGD.
Repeated deadline extensions: FGD installation deadlines pushed back several times (cost, capacity concerns) — a key criticism.
Fly Ash Notification: 100% ash-utilisation target; penalties for shortfall.
Categorisation: plants near cities/critically-polluted areas given priority timelines.

Prelims trap: FGD removes SO₂ (sulphur dioxide), NOT particulate. Particulates are captured by ESPs. Mercury & SO₂ norms date from the 2015 standards. Distinguish these control devices clearly.

8. Clean Coal & Just Transition

As India targets net-zero-2070 while coal still dominates power, the challenge is to cut coal's footprint and protect coal-dependent workers & regions.

8.1 Cleaner-Coal Measures

Supercritical & ultra-supercritical plants: higher efficiency, less coal & CO₂ per unit.
Coal washing/beneficiation, biomass co-firing in boilers.
Carbon Capture, Utilisation & Storage (CCUS): emerging, costly.

8.2 Just Transition

Element	Detail
Meaning	Shift away from coal without leaving workers/regions behind
At stake	Coal jobs, district economies (e.g. Jharkhand, Chhattisgarh)
Tools	Reskilling, alternative livelihoods, mine-land reclamation, RE jobs
Global link	Just Energy Transition Partnerships (JETPs), climate finance

Takeaway: "just transition" is the socially-fair phase-down of coal — India's stance is that transition must be gradual, funded by developed nations, and protect the ~millions dependent on coal. A high-value Mains angle linking climate, equity & jobs.

9. Critiques & Draft EIA 2020

EIA is powerful in theory but widely criticised in practice; the Draft EIA Notification 2020 sparked major controversy.

9.1 Criticisms of the EIA Regime

Poor-quality reports: EIA prepared by consultants paid by the proponent (conflict of interest).
Weak public consultation: short notice, language barriers, tokenism.
Ex-post-facto clearances: approving projects after they start — courts have held this illegal.
Weak monitoring: conditions in EC often not enforced.

9.2 Draft EIA 2020 — Why Controversial

Proposal	Concern
Post-facto clearance regularisation	Rewards violations
Reduced public-consultation notice	Weakens participation
More exempt categories (B2)	Less scrutiny
Only govt/proponent can report violations	Silences public whistle-blowing

Mains angle: critics say Draft EIA 2020 dilutes environmental democracy for "ease of doing business"; defenders cite streamlining & investment. Balance: strengthen EIA (independent EIA authors, robust hearings, digital transparency via PARIVESH) rather than weaken it.

Fig 28.3 — Thermal-plant impact web with control links: SO₂ (curbed by FGD), particulate (ESP), fly ash (reused in cement/bricks) and warm-water discharge (thermal pollution).

10. Current Affairs Link (2024–2026)

EIA reform and thermal-plant compliance are perennial in the news — court rulings, deadline extensions and clearance controversies. Verify the latest before the exam.

10.1 Recent Developments

Development	Year	Exam relevance
FGD-installation deadline extensions check latest	2024–26	SO₂ norms, phased timelines by plant location
Fly-ash utilisation compliance check latest	2024–26	100% target, penalties, ash-pond safety
PARIVESH 2.0 single-window portal	2023–26	Digital clearances, transparency vs speed
Supreme Court on ex-post-facto clearance	2024–26	Illegality of retrospective EC
Commercial coal-mine auctions	2024–26	Production push vs forest/tribal rights
Just-transition & JETP discussions	2024–26	Coal-district livelihoods, climate finance
Draft EIA 2020 status	ongoing	Dilution debate, environmental democracy

10.2 Recurring Exam Hooks

Legal parent of EIA? (Environment (Protection) Act 1986)
Current EIA Notification year? (2006)
Category A cleared by? (MoEFCC / EAC)
FGD removes which pollutant? (SO₂)
Device for particulate capture? (ESP)
Online clearance portal? (PARIVESH)
Fair coal phase-down concept? (just transition)

Freshness note: FGD deadlines, fly-ash figures and clearance-portal features change often — cross-check MoEFCC / CPCB / PARIVESH before the exam. check for latest update or data

11. Prelims PYQs

UPSC Prelims 2015

Q: Environmental Impact Assessment (EIA) in India is issued under which parent legislation?

(a) Wildlife (Protection) Act 1972
(b) Water (Prevention) Act 1974
(c) Environment (Protection) Act 1986
(d) Forest (Conservation) Act 1980

Ans: (c) — EIA notifications are issued under the Environment (Protection) Act 1986. First notification 1994; current 2006.

UPSC Prelims 2019

Q: Under the EIA Notification 2006, Category A projects are appraised and cleared by:

(a) State Pollution Control Board
(b) MoEFCC on advice of the EAC
(c) SEIAA / SEAC
(d) National Green Tribunal

Ans: (b) — Category A (large/high-impact) is cleared centrally by MoEFCC via the Expert Appraisal Committee. Category B goes to SEIAA/SEAC.

UPSC Prelims 2017

Q: Which is the correct sequence of EIA stages?

(a) Scoping → Screening → Appraisal → Public consultation
(b) Screening → Scoping → Public consultation → Appraisal
(c) Public consultation → Screening → Scoping → Appraisal
(d) Appraisal → Scoping → Screening → Public consultation

Ans: (b) — Screening → Scoping (ToR) → Public consultation → Appraisal → EC.

UPSC Prelims 2021

Q: Flue-Gas Desulphurisation (FGD) in thermal power plants is used to control:

(a) Particulate matter
(b) Sulphur dioxide (SO₂)
(c) Oxides of nitrogen
(d) Carbon dioxide

Ans: (b) — FGD scrubs SO₂ from flue gas (lime/limestone). Particulate is captured by ESPs; NOx by low-NOx burners/SCR.

UPSC Prelims 2020

Q: Consider the following about "public consultation" under EIA 2006: 1. It includes a public hearing conducted by the SPCB. 2. It is waived for Category B2 projects. 3. It also considers written responses from stakeholders. Which are correct?

(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

Ans: (d) — All correct — public consultation = SPCB hearing + written responses, and is waived for Category B2.

UPSC Prelims 2016

Q: Fly ash generated by thermal power plants is best managed by:

(a) Dumping in rivers
(b) Utilisation in cement, bricks & road embankments
(c) Open burning
(d) Deep-sea disposal

Ans: (b) — The Fly Ash Notification targets 100% utilisation in construction (cement/bricks/roads) and mine-void filling.

UPSC Prelims 2022

Q: "Ex-post-facto environmental clearance" refers to:

(a) Clearance granted before scoping
(b) Clearance granted after a project has already begun
(c) Clearance only for Category B2
(d) Clearance issued by the NGT

Ans: (b) — Ex-post-facto EC regularises projects started without clearance — courts have held it contrary to the precautionary principle.

UPSC Prelims 2023

Q: The concept of "just transition" in the energy context primarily concerns:

(a) Fast-tracking coal-mine clearances
(b) A socially-fair phase-down of coal protecting workers & regions
(c) Privatising electricity distribution
(d) Increasing coal imports

Ans: (b) — Just transition = moving away from coal without harming coal-dependent workers/communities — reskilling, alternative livelihoods, climate finance (JETPs).

Prelims 2026 — anticipated themes

Likely: FGD-deadline extensions for thermal plants, PARIVESH 2.0 single-window, EIA category shuffles/exemptions, and Just Energy Transition Partnership (JETP) finance are hot hooks — expect control-technology-to-pollutant and stage-sequence items. check for latest update or data

12. Mains PYQs + Model Answers

Questions below are original, exam-style formulations built from real UPSC GS-III themes — paraphrased to be copyright-safe. Each framework = intro angle → structured body → way-forward, with examples to quote.

Mains GS-III — style 2019 15 marks · 250 words

Q: "Environmental Impact Assessment is only as strong as its public consultation and enforcement." Critically examine India's EIA regime.

Model Answer Framework

Introduction — define: EIA (EPA 1986, Notification 2006); stages & EMP.
Strengths: anticipatory tool, public participation, expert appraisal, PARIVESH.
Weaknesses:
- Proponent-paid EIA, weak hearings, ex-post-facto clearances, poor monitoring.
Conclusion: independent EIA authors, robust hearings, digital transparency, strong compliance.

Mains GS-III — style 2017 15 marks · 250 words

Q: Discuss the environmental impacts of coal-based thermal power and the measures to reduce them.

Model Answer Framework

Introduction — context: coal ~70% of power; largest industrial polluter.
Impacts: SO₂/NOx/PM/mercury/CO₂, fly ash, thermal water pollution, mining damage.
Measures: 2015 norms + FGD, ESP, fly-ash utilisation, supercritical plants, RE substitution.
Conclusion: enforce deadlines, 100% ash use, accelerate clean energy + just transition.

Mains GS-III — style 2021 10 marks · 150 words

Q: "The Draft EIA Notification 2020 tilts the balance from environment to ease of doing business." Comment.

Model Answer Framework

Introduction — proposals: post-facto clearance, shorter consultation, more exemptions, restricted violation reporting.
Concerns: weakens environmental democracy & accountability.
Counterview: streamlining, investment, digital efficiency.
Conclusion: strengthen (not dilute) EIA with transparency & independent appraisal.

Mains GS-III — style 2020 10 marks · 150 words

Q: Examine the concept of "just transition" for India's coal sector.

Model Answer Framework

Introduction — meaning: fair phase-down of coal protecting workers & regions.
Stakes: coal jobs, district economies, energy security.
Tools: reskilling, alternative livelihoods, mine reclamation, RE jobs, JETPs.
Conclusion: gradual, equity-based, funded by developed nations.

Mains GS-III — style 2022 15 marks · 250 words

Q: "Fly ash is both a hazard and a resource." Discuss in the context of thermal-power waste management.

Model Answer Framework

Introduction — hazard: heavy metals, ash-pond breaches, land & water contamination.
Resource: cement, bricks, roads, mine-void filling — circular economy.
Policy: Fly Ash Notification, 100% utilisation target, penalties.
Conclusion: dry disposal, safe ponds, market for ash products, monitoring.

Mains GS-III — anticipated theme 15 marks · 250 words

Q: Repeated deadline extensions for flue-gas desulphurisation reveal the tension between clean-air goals and power-tariff pressures. Critically examine India's thermal-emission compliance regime. check for latest update or data

15-Minute Revision Box

Must-Remember Facts — EIA & Coal-Power Impacts

EIA process & governance

EIA: anticipatory study under EPA 1986; first 1994, current Notification 2006; EMP = core.
Stages: Screening → Scoping (ToR) → Public Consultation → Appraisal → EC.
Categories: A = Centre (MoEFCC/EAC); B = State (SEIAA/SEAC); only B1 needs EIA, B2 exempt.
Public consultation: SPCB public hearing + written responses; waived for B2.
Draft EIA 2020: post-facto clearance, diluted consultation — criticised as weakening.
Portal: PARIVESH single-window; NGT adjudicates disputes.

Coal-power impacts & controls

Coal mining: forest/water/air damage, subsidence, displacement, FRA conflict.
Thermal impacts: SO₂, NOx, PM, mercury, CO₂; fly ash; thermal water pollution.
Controls: FGD → SO₂; ESP → particulate; 2015 emission norms; Fly Ash Notification (100% use).
Just transition: fair coal phase-down; reskilling, JETPs, climate finance.

Highest-frequency themes since 2014: EIA parent-Act & stage-sequence, Category A/B appraisal authority, control-technology-to-pollutant (FGD/ESP), fly-ash utilisation, ex-post-facto clearance — FGD deadlines, PARIVESH 2.0 and JETP finance are current-affairs hooks.

Term	Meaning
EIA	Study of a project's environmental effects
EMP	Environmental Management Plan
EC	Environmental Clearance
FGD	Flue-Gas Desulphurisation (cuts SO₂)
Fly ash	Fine residue from coal burning

Category	Cleared by
A (large)	MoEFCC / EAC (Centre)
B1	SEIAA / SEAC (State)
B2	State, no EIA/hearing

Stage	Note
Screening	Is EIA needed?
Scoping	ToR of study
Public consultation	Hearing + views
Appraisal	EAC/SEAC decision

Topic 28: EIA & Coal/Thermal Power Impacts

On this page

Conceptual Clarity — Why this Topic Matters

1. EIA — Concept & Importance

1.1 Definition & Legal Basis

1.2 Why EIA Matters

2. EIA Process & Stages

2.1 The Four Stages

2.2 Key Documents

3. EIA Notification 2006 & Categories

3.1 Category A vs B

3.2 Bodies

4. Public Consultation & Bodies

4.1 Two Components

4.2 Exemptions & Limits

4.3 The Institutional Chain

5. Coal Mining Impacts

5.1 Environmental Impacts

5.2 Governance Tensions

6. Thermal Power Plant Impacts

6.1 Pollution Streams

6.2 Fly Ash — the Key Waste

7. Fly Ash, FGD & Emission Norms

7.1 Control Technologies

7.2 Norms & Compliance

8. Clean Coal & Just Transition

8.1 Cleaner-Coal Measures

8.2 Just Transition

9. Critiques & Draft EIA 2020

9.1 Criticisms of the EIA Regime

9.2 Draft EIA 2020 — Why Controversial

10. Current Affairs Link (2024–2026)

10.1 Recent Developments

10.2 Recurring Exam Hooks

11. Prelims PYQs

12. Mains PYQs + Model Answers

Model Answer Framework

Model Answer Framework

Model Answer Framework

Model Answer Framework

Model Answer Framework

15-Minute Revision Box

Must-Remember Facts — EIA & Coal-Power Impacts