## Environment
India spans the Himalayas, Indo-Gangetic plains, Thar Desert, Deccan Plateau, Western and Eastern Ghats, long coastlines, islands, wetlands, forests, and major river systems. Its environmental profile is therefore exceptionally varied.
### Major environmental themes - **Air pollution:** a serious issue in several cities and industrial regions, with strong seasonal variation. - **Water stress:** many areas face groundwater depletion, river pollution, or seasonal scarcity. - **Biodiversity richness:** India is one of the world's megadiverse countries. - **Climate vulnerability:** exposure to heatwaves, monsoons, floods, droughts, sea-level risks, glacial changes, and cyclones.
### Air quality - Air quality can range from relatively clean in some hill, forest, and coastal regions to poor in major urban and industrial zones. - Winter pollution episodes are especially noted in **Delhi and parts of north India**. - Official monitoring is supported by the **Central Pollution Control Board (CPCB)** and state pollution control boards.
### Water and rivers - India depends heavily on monsoon-fed surface water and groundwater. - Major river systems include the **Ganga, Brahmaputra, Yamuna, Godavari, Krishna, Narmada, Tapi, Mahanadi, and Kaveri**. - Water quality varies dramatically by basin and settlement pattern. - River conservation and urban wastewater treatment remain major public policy issues.
### Forests, wildlife, and protected areas - India has an extensive protected-area network including: - national parks - wildlife sanctuaries - biosphere reserves - tiger reserves - elephant corridors - wetlands of international importance - Flagship species include **tiger, Asian elephant, Indian rhinoceros, Asiatic lion, snow leopard, gharial, and numerous endemic birds and reptiles**. - Conservation institutions include the **Ministry of Environment, Forest and Climate Change**, **National Tiger Conservation Authority**, and state forest departments.
### Coast and marine issues - Coastal India faces erosion, pollution, mangrove pressure, storm surge, and cyclone exposure. - Sensitive marine and coastal areas include the **Sundarbans**, **Gulf of Mannar**, **Lakshadweep**, and **Andaman and Nicobar Islands**.
### Climate and sustainability - India is expanding renewable energy, especially **solar and wind**. - National missions have targeted: - solar deployment - cleaner cooking access - sanitation - energy efficiency - electric mobility - afforestation and watershed work - Implementation quality varies by state and district.
### Waste and recycling - Solid waste management is improving in some cities, but landfill pressure, open dumping, plastic leakage, and sewage treatment gaps remain significant concerns. - Informal-sector waste pickers remain a critical part of recycling systems in many urban areas.
### Protected landscapes of note - **Himalayan ecosystems** - **Western Ghats biodiversity hotspot** - **Sundarbans mangrove ecosystem** - **Kaziranga landscape** - **Gir landscape** - **Nilgiri Biosphere Reserve**
### Practical environmental notes - Check local air quality before outdoor exercise in large cities. - Carry reusable bottles and bags where practical. - Respect wildlife rules in protected areas. - Water safety and sanitation conditions are highly location-specific.