Chapter 11
Pakistan's Environmental Landscape
National parks, climate zones, environmental challenges, water resources.
Full Chapter Notes
Source · FPSC Trap Decoder · CSS MPT Smart Notes (2026 Edition)
11.1 Context
| MPT Weightage | Difficulty Level | Confirmed Past Papers |
|---|---|---|
| 5–8 Marks | Medium to High | 2022 · 2023 · 2024 · 2025 |
Trend Alert. This is the only chapter where Pakistan-specific facts are mandatory. Indus Water Treaty (2022, 2023), CPEC = BRI (2024), Punjab = Land of Five Rivers (2025), Lahore smog type, Thar coal grade, Billion Tree Tsunami province, and PEPA year are all confirmed or high-probability questions. Candidates who prepare only global environmental concepts routinely lose 4–6 marks here.
11.2 High-Yield Fact Snapshot
| FPSC-Tested Fact | Correct Answer | Year Tested |
|---|---|---|
| Indus Water Treaty — rivers to India | Sutlej, Beas, Ravi (eastern rivers) | 2022 — Repeated |
| Indus Water Treaty — brokered by | World Bank | 2023 |
| Punjab = Land of Five Rivers | Punjab (Indus, Jhelum, Chenab, Ravi, Sutlej) | 2025 |
| CPEC is flagship project of | Belt and Road Initiative (BRI) | 2024 |
| Lahore smog type | Photochemical (NOₓ + VOCs + sunlight) | 2023 high-yield |
| Thar coal grade | Lignite — lowest grade | 2023 |
| Billion Tree Tsunami province | Khyber Pakhtunkhwa (KPK) — 1 billion trees | 2024 — Repeated |
| 10 Billion Tree Tsunami | National programme — all provinces | 2024 |
| PEPA enacted year | 1997 — Pakistan Environmental Protection Act | 2022 |
| 18th Amendment effect on environment | Devolved to provinces — provincial EPAs now primary | 2024 high-yield |
11.3 Lahore Smog — Science, Season & Source
Lahore's smog crisis is Pakistan's most high-profile environmental issue and a consistent FPSC target. Know all four dimensions: type, season, source, and primary pollutant.
| Dimension | Key Fact | FPSC Note |
|---|---|---|
| Smog Type | Photochemical (NOₓ + VOCs + UV → ground-level O₃ + PAN) | NOT London/sulphurous smog. Photochemical = Lahore's type. |
| Peak Season | October to January (post-harvest paddy burning, winter inversion) | Temperature inversion traps pollutants near ground. |
| Primary Sources | Crop residue burning (paddy stubble), brick kilns, vehicle emissions, industrial effluent | India's Haryana/Punjab stubble burning adds transboundary pollution. |
| Primary Pollutant | PM2.5 (particles <2.5 µm) — penetrate lungs and bloodstream | WHO annual limit: 5 µg/m³. Lahore: often 200–500 µg/m³. |
| Health Impact | Respiratory disease, cardiovascular disease (heart attacks), reduced visibility | PM2.5 causes systemic inflammation — not just respiratory. |
| Temperature Inversion | Cold air above, warm air below — prevents vertical mixing, traps pollutants | Not the same as fog. Fog = water droplets. Inversion = trapped pollution. |
11.4 Indus River System — Complete Reference
| Feature | Key Fact | FPSC Note |
|---|---|---|
| Origin | Tibetan Plateau (near Lake Mansarovar), China/Tibet | Rises at ~5,500 m altitude |
| Total Length | ~3,180 km (one of Asia's longest rivers) | ~2,900 km within Pakistan |
| Tributaries | Jhelum, Chenab, Ravi, Beas, Sutlej — the 'Five Rivers' of Punjab | Punj = five, Aab = water → Punjab = Land of Five Rivers (2025) |
| Outfall | Arabian Sea, near Karachi/Thatta (Indus Delta) | NOT the Bay of Bengal — classic FPSC trap |
| Indus Water Treaty (1960) | Pakistan: Indus, Jhelum, Chenab (western). India: Ravi, Beas, Sutlej (eastern). | Brokered by World Bank (2023). Pakistan gets ~80% of Indus flow. |
| Agricultural Role | Feeds world's largest contiguous irrigation system — ~90% of Pakistan's cultivated land | 60,000 km of canals in Indus Basin |
| Tarbela Dam | World's largest earth-filled dam. 4,888 MW. On Indus River, KPK. | Sedimentation is long-term threat (2022). |
Indus Water Treaty allocation. Pakistan gets the three WESTERN rivers — Indus, Jhelum, Chenab. India gets the three EASTERN rivers — Ravi, Beas, Sutlej. FPSC swaps 'eastern' and 'western' in options. Memory hook: Pakistan = Permanent rivers facing West. India = Eastern rivers. The Indus river itself goes to Pakistan.
Indus outfall trap. The Indus River empties into the ARABIAN SEA near Karachi. NOT the Bay of Bengal (that is the Ganges/Brahmaputra). FPSC uses Bay of Bengal as a distractor for the Indus.
11.5 Deforestation & Reforestation — Pakistan
| Aspect | Key Fact | FPSC Note |
|---|---|---|
| Forest Cover | ~4–5% of Pakistan's land area | International recommended minimum: 25%. Pakistan is severely below. |
| Deforestation Rate | ~27,000 hectares/year — one of Asia's highest | Primary causes: fuelwood, agricultural expansion, illegal logging |
| Billion Tree Tsunami | 1 billion trees planted in KPK, PTI government (~2017) | Appeared MPT 2024. Won Bonn Challenge Award. UN recognition. |
| 10 Billion Tree Tsunami | National programme — all provinces — target by 2023 | Part of Pakistan's Paris Agreement NDC. Distinction: 1B = KPK, 10B = national. |
| Key Protected Areas | Hingol National Park (largest, Balochistan), Khunjerab (snow leopard, KPK) | Pakistan has 37 National Parks, 127 Wildlife Sanctuaries |
11.6 Thar Coal — Grade, Location & Environmental Impact
| Feature | Key Fact | FPSC Note |
|---|---|---|
| Location | Tharparkar District, Sindh | Desert region — ~500 km from Karachi |
| Reserve Size | ~175 billion tonnes — one of world's largest coal deposits | World's 7th largest by reserve volume |
| Coal Grade | LIGNITE — lowest grade (25–35% carbon, highest moisture) | MPT 2023. NOT anthracite (highest), NOT bituminous (most common globally). |
| Coal Grade Order | Lignite → Sub-bituminous → Bituminous → Anthracite (carbon increases →) | Higher carbon = more energy per kg = less CO₂ per unit energy |
| Environmental Impact | Highest CO₂ per unit energy (low energy density = more coal burned per kWh) | Open-cast mining impacts arid ecosystem of Tharparkar |
Thar coal grade trap. Thar coal is LIGNITE — the LOWEST grade. FPSC lists 'anthracite' (highest, used for steel) and 'bituminous' (most common globally) as distractors. Any option other than lignite is wrong for Thar. Lignite = low carbon, high moisture, lowest energy density, highest CO₂ per unit output.
11.7 Environmental Legislation — Key Laws & Institutions
| Law/Institution | Year | Key Provision | FPSC Note |
|---|---|---|---|
| PEPA | 1997 | Primary environmental framework law. Establishes NEQs. Creates NEPA. Mandates EIA. | Appeared MPT 2022. Year = 1997. |
| 18th Amendment | 2010 | Devolved environment to provinces. Provincial EPAs = primary enforcers now. | Post-2010: Punjab EPA, Sindh EPA, KPK EPA, Balochistan EPA. |
| Climate Change Act | 2017 | Legal framework for climate adaptation & mitigation. Created Climate Change Council. | Pakistan = one of first developing nations with dedicated climate legislation. |
| EIA (under PEPA) | 1997 | Mandatory BEFORE major project commencement. Reviewed by provincial EPA. | EIA = before construction. Not during or after. FPSC tests this timing. |
| NEPA | Under PEPA | National Environmental Protection Agency — federal regulatory body. | Post-18th Amendment: provincial EPAs are primary. NEPA role limited. |
EIA timing trap. Environmental Impact Assessment (EIA) must be conducted BEFORE a project begins — not after construction, not during. FPSC presents EIA as a 'post-construction audit' option. The correct sequence is: EIA completed → EPA approval → construction begins. Any project commencing without EIA clearance violates PEPA 1997.
NEPA vs Provincial EPA trap. NEPA = National Environmental Protection Agency (federal, created by PEPA 1997). Provincial EPAs (Punjab EPA, Sindh EPA, KPK EPA, Balochistan EPA) = primary enforcement bodies AFTER the 18th Amendment (2010). For a question about enforcement in Punjab post-2010 → Punjab EPA. For the national legal framework → PEPA. For the federal regulatory body → NEPA.
11.8 CPEC Energy Projects — Environmental Dimensions
| Project | Province | Capacity | Environmental Concern |
|---|---|---|---|
| Sahiwal Coal Power Plant | Punjab | 1,320 MW | Coal combustion: CO₂, SO₂, PM2.5. Ash risk to Ravi River. |
| Port Qasim Coal Power Plant | Karachi (Sindh) | 1,320 MW | Coastal ecosystem impact. Marine pollution risk. |
| Hub Coal Power Plant | Balochistan | 1,320 MW | Located near Hub River — freshwater ecosystem risk. |
| Quaid-e-Azam Solar Park | Bahawalpur (Punjab) | 400 MW | Minimal operational emissions. Desert location reduces footprint. |
| Jhimpir/Gharo Wind Farms | Sindh | ~300 MW | Bird migration corridor impact. |
11.9 Battle Card — 5-Minute Revision
| Fact | Answer |
|---|---|
| Lahore smog type | Photochemical. Peak: October–January. Primary pollutant: PM2.5 |
| Temperature inversion | Cold air above, warm below — traps pollutants near ground |
| Thar coal grade | Lignite (lowest grade). Tharparkar, Sindh. ~175 billion tonnes. |
| Coal grade order (low to high) | Lignite → Sub-bituminous → Bituminous → Anthracite |
| Indus Water Treaty (1960) | Pakistan: Indus, Jhelum, Chenab. India: Ravi, Beas, Sutlej (2022). |
| Indus River outfall | Arabian Sea, near Karachi — NOT Bay of Bengal |
| Punjab = Land of Five Rivers | Indus, Jhelum, Chenab, Ravi, Sutlej (2025). |
| Indus Water Treaty brokered by | World Bank (2023). |
| CPEC = flagship of | Belt and Road Initiative (BRI) (2024). |
| Billion Tree Tsunami | KPK only. 1 billion trees. PTI govt. Bonn Challenge Award. |
| 10 Billion Tree Tsunami | National programme. All provinces. Target by 2023. |
| PEPA enacted | 1997 — Pakistan Environmental Protection Act (2022). |
| 18th Amendment effect (environment) | 2010 — devolved to provinces. Provincial EPAs = primary enforcers. |
| EIA timing | BEFORE project starts. EPA approval required. Not during/after. |
| Water scarcity threshold | <1,000 m³/person/year (Falkenmark). Pakistan is below this. |
| Pakistan forest cover | ~4–5% of land. Target = 25%. Deforestation: ~27,000 ha/year. |
| Hub Coal Power Plant | Balochistan (2025). |
| Sahiwal Coal Plant | Punjab |
| Pakistan GHG emissions | <1% of global total. Top 10 most climate-vulnerable. |
| KANUPP | Pakistan's first nuclear plant. 1972. Karachi. |
11.10 Practice MCQs (FPSC Level)
Part A — Basic Recall
Direct fact-recall on coal, reforestation, environmental law and the Indus Water Treaty.
The type of coal found in Thar, Sindh is:
Show explanation
Thar coal is lignite — the lowest grade of coal with ~25–35% carbon content, high moisture, and low energy density. Anthracite (highest grade, used in steel making) is the most common FPSC distractor. Bituminous is the most common coal type globally but is not Thar's grade.
Appeared MPT 2023
The Billion Tree Tsunami programme was initially launched in which province of Pakistan?
Show explanation
The Billion Tree Tsunami was launched in Khyber Pakhtunkhwa (KPK) under the PTI provincial government when Imran Khan was Chief Minister. It planted 1 billion trees and received the Bonn Challenge Award — international recognition for forest restoration.
Appeared MPT 2024
Pakistan's primary environmental framework law, PEPA, was enacted in:
Show explanation
The Pakistan Environmental Protection Act (PEPA) was enacted in 1997. It established National Environmental Quality Standards (NEQs), created NEPA as the federal regulatory body, and mandated Environmental Impact Assessments (EIA) for major projects.
Appeared MPT 2022
Under the Indus Water Treaty (1960), which rivers were allocated to Pakistan?
Show explanation
The 1960 Indus Water Treaty allocated three western rivers to Pakistan: Indus, Jhelum, and Chenab. India received three eastern rivers: Ravi, Beas, and Sutlej. Memory hook: Pakistan = western rivers. India = eastern rivers.
Appeared MPT 2022 and 2024
Part B — Trap-Based
Smog type, governance devolution, CPEC framing, and Punjab's five rivers.
Lahore's seasonal smog crisis is primarily classified as:
Show explanation
Lahore's smog is primarily photochemical, caused by NOₓ and VOCs from vehicles and crop burning reacting under sunlight. Brick kilns contribute particulate matter but not enough SO₂ to reclassify the smog as sulphurous.
Appeared MPT 2023
After Pakistan's 18th Constitutional Amendment (2010), responsibility for enforcing environmental laws was primarily transferred to:
Show explanation
The 18th Constitutional Amendment (2010) removed environment from the Concurrent Legislative List and made it an exclusive provincial subject. Provincial EPAs (Punjab, Sindh, KPK, Balochistan) now hold primary enforcement authority. NEPA's federal role is limited to coordination.
Trap: FPSC Elite Trap — NEPA is federal, but provinces hold primary power post-2010.
CPEC (China-Pakistan Economic Corridor) is a flagship project of which larger initiative?
Show explanation
CPEC (China-Pakistan Economic Corridor) is China's flagship project under the Belt and Road Initiative (BRI). CPEC involves energy, infrastructure, and trade route development totalling over $62 billion in planned investments.
Appeared MPT 2024
Which province of Pakistan is known as the 'Land of Five Rivers'?
Show explanation
Punjab is named from Persian: 'Punj' (five) + 'Aab' (water) = Land of Five Rivers (Indus, Jhelum, Chenab, Ravi, Sutlej). This appeared directly in MPT 2025.
Appeared MPT 2025
Part C — Elite Simulation
Statement sets and Balochistan-specific CPEC plant questions.
Consider the following about the Indus River: (1) The Indus originates in the Tibetan Plateau. (2) It empties into the Bay of Bengal near Karachi. (3) The Indus Water Treaty allocates Jhelum and Chenab to Pakistan. Which are correct?
Show explanation
Statement 1 is correct: Indus originates on the Tibetan Plateau. Statement 3 is correct: Jhelum and Chenab are allocated to Pakistan. Statement 2 is WRONG: the Indus empties into the ARABIAN SEA near Karachi/Thatta — not the Bay of Bengal.
Trap: Statement 2 is FALSE — Arabian Sea, NOT Bay of Bengal.
Consider: (1) PEPA was enacted in 1997. (2) The 18th Amendment devolved environment to the federal government. (3) The Climate Change Act (2017) created Pakistan's legal climate framework. (4) EIA must be completed before project construction begins. Which are correct?
Show explanation
Statements 1, 3, and 4 are correct: PEPA = 1997; Climate Change Act = 2017; EIA = before construction. Statement 2 is WRONG: the 18th Amendment devolved environment to the PROVINCES — not to the federal government.
Trap: Statement 2 is FALSE — devolved to PROVINCES not federal.
Which CPEC coal power plant is located in Balochistan?
Show explanation
The Hub Coal Power Plant (1,320 MW) is located in Hub, Balochistan, near the Hub River and Hub Dam. Sahiwal = Punjab. Port Qasim = Karachi (Sindh). Thar Block-II = Tharparkar, Sindh.
Appeared MPT 2025
The primary reason Thar coal produces more CO₂ per unit of electricity than other coal types is:
Show explanation
Thar's lignite has low carbon density (~25–35%), high moisture content (~30–50%), and very low calorific value (~2,500–4,000 kcal/kg). Significantly more lignite must be burned per kilowatt-hour of electricity compared to bituminous (~6,000 kcal/kg) or anthracite (~8,000 kcal/kg), resulting in more CO₂ per unit output.
Appeared MPT 2024
11.11 Answer Key & Trap Analysis
Pakistan's Environmental Landscape (Q1–Q12)
| Q | Correct | Type | Primary Trap | Why Others Fail |
|---|