Environment Report 2026: 99% Days Extreme Weather
CSE's State of India Environment Report 2026 shows extreme weather events occurred on 99% of days in 2025 across India. We examine the climate mechanism, ecosystem impacts, and policy failures. Can adaptation strategies keep pace with accelerating climate impacts?
The CSE State of India Environment Report 2026 found extreme weather on 99% of days in 2025, the highest on record. Floods, heatwaves and cyclones killed over 3,000 people and displaced lakhs across 20 states. The trend reflects a warmer Indian Ocean and erratic monsoon amplified by global heating. For agrarian India, the question is adaptation, not just mitigation.
What did the CSE State of India's Environment Report 2026 find about extreme weather?
The Centre for Science and Environment's State of India's Environment Report 2026 found that extreme weather, from heatwaves and floods to landslides and storms, hit some part of India on 99% of days in 2025. The report links this to a warmer Indian Ocean and erratic monsoons, and argues India's priority must now be adaptation, not only mitigation.
The Story in 60 Seconds
What Happened?
The Centre for Science and Environment (CSE), an NGO, released its annual State of India Environment Report in August 2026. Key finding: in 2025, extreme weather events (heatwaves exceeding 45°C, rainfall exceeding 1.5x normal, storms, landslides) occurred somewhere in India on at least 360 days (99% of the year).
Deaths attributed to extreme weather in 2025: ~850 (floods: 450, heatwaves: 200, landslides: 120, others: 80). Economic losses estimated at ₹1.15 lakh crore (insurance claims + uninsured agricultural losses). This is 0.4% of India's GDP—concentrated in rural and coastal areas.
The 99% figure is striking but requires context. It reflects data aggregation across India's diverse geographies: when Mumbai faces floods, Kerala experiences drought; when North India burns in heat, Northeast faces excess rain. The report's significance is not that 99% is statistically shocking, but that extreme weather is now geographically continuous—always hitting somewhere. This means national-level disaster response must be perpetually active, not reactive.
Understand the Science
Climate mechanism: Earth's atmosphere warms (~1.1°C since 1900). Warmer air holds more moisture (7% more per 1°C). This intensifies the water cycle: where rain falls, it falls harder. Where droughts occur, they're more severe. Additionally, warming destabilizes jet streams (winds at high altitude), leading to blocking patterns (stationary weather systems). Result: extreme rainfall in some regions, prolonged droughts in others.
For India specifically: The Indian monsoon (June-September) is weakening overall but becoming more volatile. When it rains, it rains heavily (floods risk). When it's dry, it's extended (drought risk). Temperature extremes have also increased: average summer heat has risen 0.5°C since 2000, and maximum temperatures on hottest days have jumped 1-2°C.
In nature nothing exists alone.
Rachel Carson, Silent Spring (1962)
Ecological System Impacts
Extreme Weather Events
| Ecosystem | Impact of Extreme Weather |
|---|---|
| Forests | Wildfires (drought + heat). Western Ghats: tea and spice plantations flood-damaged. Himalayan forests: altered snowmelt timing affects downstream water. |
| Rivers & Wetlands | Monsoon floods inundate riparian zones; dry season lows expose riverbeds. Wetlands (breeding grounds for migratory birds) face alternating flood-drought stress. |
| Agricultural soils | Heavy rainfall causes erosion (topsoil loss). Prolonged drought depletes soil moisture. Nutrient cycling disrupted. |
| Coastal zones | Cyclones intensify (warmer seas). Storm surge + high tide = inundation. Mangroves (storm barriers) lost to development. |
Causality: Why Is This Happening?
- Global CO'' emissions (coal, oil, gas) → Atmospheric CO'' rises (420 ppm in 2025, vs 280 ppm pre-industrial)
- Greenhouse effect: CO'' traps infrared radiation → Global temperature +1.1°C
- Warmer ocean + atmosphere → Intensified water cycle (more evaporation, more intense rainfall)
- Destabilized jet streams → Blocking patterns → Extended heat waves or droughts
- Result: Extreme weather intensifies on regional scales
India's specific vulnerability: 70% of India's economy depends on monsoon rains (agriculture, hydropower, water supply). The monsoon's increasing volatility directly threatens this. Additionally, India's coastal zones (home to ~400 million people) face intensifying cyclones and sea-level rise (~7cm since 1900, accelerating).
Read More
- Ministry of Environment Forest & Climate Change (Official climate and environment statistics)
- India State of Environment Report: CSE (Centre for Science and Environment report 2026)
- Air Pollution Medical Emergency (Health impact of 99% extreme weather days)
Connect the Dots
- Global driver: the atmosphere has warmed about 1.1°C, and warmer air holds about 7% more moisture per degree, intensifying the water cycle.
- Indian monsoon: rainfall is becoming more volatile, so wet spells bring heavier floods and dry spells last longer.
- Extreme days: CSE recorded extreme weather somewhere in India on 99% of days in 2025, with losses estimated at ₹1.15 lakh crore.
- Exposure: about 70% of India's economy depends on monsoon rains, and about 400 million people live in coastal zones facing stronger cyclones.
- Funding gap: adaptation spending is estimated at ₹3-4 lakh crore a year against a need of about ₹8-10 lakh crore.
- Policy choice: early warning, water storage and crop insurance decide whether extreme weather stays a shock or becomes a permanent drag on growth.
Human Impact & Affected Groups
Climate Impact Analysis
| Group | Impact |
|---|---|
| Farmers (58% of rural workforce) | Crop losses from drought (2025: ₹40,000 cr) and floods. Debt accumulates; suicides rise in drought-prone regions. |
| Urban poor (slums: 100M+ people) | Heat stress during extreme summers (wet-bulb temps >32°C = lethal); no AC, poor water supply. Flood-related displacement. |
| Fishers (coastal & inland) | Cyclones damage boats; monsoon timing disrupts fish spawning. Inland: dam operations altered by rainfall volatility. |
| Workers (construction, agriculture, outdoor) | Heat-related illness: productivity losses, heat strokes. Monsoon delays affect job continuity. |
| Elderly & children | Higher heat mortality. Diarrheal diseases increase with flooding. Nutritional gaps from harvest failures. |
Evidence: What Do the Numbers Show?
- Temperature: India's average annual temp rose 0.7°C since 1900 (vs 1.1°C global). Heat waves: 40+ days/year in some regions (vs 20 days in 1970s).
- Rainfall: Monsoon intensity increasing (heavy rainfall days up 3-5%/decade). But average monsoon rainfall declining (paradox: fewer rainy days, more intense when it rains).
- Glaciers: Himalayan glaciers retreated ~20% since 1970s. Threatens dry-season water availability for 800M people in river basins.
- Sea level: Indian coasts rising ~7mm/year. Threatens ports, coastal agriculture, mangrove zones.
Policy Response
What is India doing?
- Mitigation (emissions reduction): India committed to 500 GW renewable energy by 2030. Current: ~200 GW. Coal still 70% of electricity. No binding fossil-fuel phase-out timeline.
- Adaptation (managing impacts): Early warning systems for cyclones, floods (improving). Crop insurance schemes (though insurance payouts often inadequate). Irrigation systems (but many are aging).
- Disaster response: National Disaster Management Authority (NDMA) coordinates. But funding for relief and reconstruction ($2-3B/year) falls short of actual damages ($10-15B/year).
Gap: Adaptation spending is ~₹3-4 lakh crore annually (estimate). Need: ~₹8-10 lakh crore annually to truly build climate-resilient infrastructure. That's 2-3% of GDP, which India hasn't prioritized.
The Debate
Regional Vulnerability
| Perspective | Argument | Evidence |
|---|---|---|
| Climate realists (CSE, IPCC, scientists) | Extreme weather is already here. Mitigation (cutting emissions) is necessary but won't prevent another 0.5-1°C warming. Adaptation infrastructure is urgent and underfunded. | CSE report: 99% extreme weather days. IPCC: 1.5°C warming likely by 2030-2035. India already committed to 2°C warming minimum. |
| Development-first advocates | India shouldn't sacrifice growth to cut emissions. Developed countries grew via coal; India's right to do likewise. Adaptation (infrastructure) matters more than mitigation (emissions reduction). | India's per-capita emissions still low (~2 tonnes/person vs 15 in US). Coal power cheaper than renewables. Growth necessary for poverty reduction. |
| Policy pragmatists | Both mitigation and adaptation needed. Mitigation alone takes decades to show effect. Adaptation infrastructure (water storage, flood barriers, crop insurance) saves lives now. India must do both. | Best practice: New Zealand, Netherlands invest heavily in both. Investment in adaptation yields 4-8x economic returns (avoided losses). |
What Is Clear?
- Extreme weather frequency is increasing; this is scientifically established.
- India's agricultural and coastal sectors are vulnerable to climate impacts.
- Current adaptation spending is insufficient to manage impacts at current warming (1.1°C). Impacts will worsen as warming continues.
- Mitigation (emissions reduction) must happen but will take decades to reverse warming.
What Remains Uncertain?
- Exact timeline and intensity of future impacts (models differ on monsoon changes).
- Tipping points: When does warming trigger irreversible ecosystem shifts (e.g., collapse of monsoon, Amazon dieback)?
- Human adaptation capacity: Can farmers switch crops, can migration happen smoothly, or will climate impacts spark conflict?
- Technology: Will renewable energy + storage + carbon capture mature fast enough?
What Could Happen Next?
- Global mitigation accelerates — Renewable energy + EV adoption + carbon pricing scales | Warming stabilizes at 1.5-1.7°C | Extreme weather plateaus. Requires policy shift globally.
- Mitigation stalls — Fossil fuels continue dominant | Warming reaches 2-2.5°C by 2050 | Extreme weather intensifies significantly. India faces agricultural collapse in some regions.
- Adaptation overcomes — India invests ₹10L crore in resilient infrastructure | Crop insurance, water storage, early warning systems improve | Impacts managed. Economic losses capped.
- Maladaptation — Poorly designed dam projects create new problems | Dykes cause ecological damage | Crop shifts displace traditional farmers | Adaptation worsens inequality.
Why Does It Matter for India?
70% of India's workforce depends on agriculture; 400M live in coastal zones; 800M depend on river water. Climate impacts threaten all three. A sustained drought can trigger mass migration (adding pressure to cities already struggling with water). Cyclones can displace millions in coastal zones. This is not a future problem—it's happening now (2025: ₹1.15L crore in losses). Policy response must accelerate or economic losses and human suffering will grow.
Jasvin Thinks
CONCEPT BEHIND THE NEWS
Bottom Line
Extreme weather on 99% of days in 2025 reflects a new climate reality: India faces continuous extreme weather across its diverse regions. The science is clear (greenhouse warming intensifies water cycle), the impacts are measurable (₹1.15L crore losses, ~850 deaths), but policy response is inadequate. Adaptation infrastructure (early warning, water storage, crop insurance) is underfunded (₹3-4L crore vs ₹8-10L crore need). Mitigation (emissions cuts) is slow (renewables at 200 GW, target 500 GW). India must accelerate both—or climate impacts will outpace policy response, hitting poorest populations (farmers, coastal dwellers, urban poor) hardest.
Sources & Further Reading
- Primary | Centre for Science and Environment: 'State of India Environment Report 2026' | https://cseindia.org/
- Primary | India Meteorological Department: 'Monsoon and Temperature Data 2025' | https://imd.gov.in/
- Analysis | Down To Earth: Climate coverage and reports | https://downtoearth.org.in/
- Context | IPCC Sixth Assessment Report (2021-2023): Global climate science | https://ipcc.ch/
- Further Reading | Drishti IAS: 'Climate Change and India' and 'Disaster Management' | https://drishtiias.com/
- Data | National Disaster Management Authority (NDMA): Disaster statistics and response | https://ndma.gov.in/