Environment and Sustainable Development

• Introduction

  • Definition of Environment
    • Abiotic elements (air, water, land)
    • Biotic elements (plants, animals)
  • Interdependence between biotic and abiotic components

• Functions of the Environment

  • Supplies resources (renewable and non-renewable)
  • Assimilates waste
  • Sustains life (genetic and biodiversity)
  • Provides aesthetic services (scenery)

• Environmental Crisis

  • Carrying Capacity concept
    • Meaning: Resource extraction rate < Resource regeneration rate; Waste generation < Assimilation capacity
  • Causes of the Crisis
    • Population explosion
    • Affluence-driven resource overuse
    • Shift to resource-intensive technology
  • Major Pressures
    • Global Environmental Issues
      • Global Warming (Greenhouse effect)
      • Ozone Depletion (CFCs impact)

• State of India's Environment

  • Abundant Natural Resources
    • Fertile river valleys (Indus, Ganga, Brahmaputra)
    • Rich mineral deposits (coal, iron ore)
    • Vast forests and coastline
  • Key Environmental Challenges in India
    • Land Degradation (soil erosion, salinization)
    • Air Pollution (vehicular and industrial emissions)
    • Water Management (scarcity, pollution of rivers)
    • Solid Waste Management (urban garbage accumulation)
    • Deforestation and loss of biodiversity
  • Opportunity Cost of Development
    • Poverty-induced environmental degradation vs. Industrial pollution
    • Air and water pollution as major public health threats (respiratory and water-borne diseases)

• Sustainable Development

  • Definition
    • Meeting the needs of the present generation without compromising the ability of future generations to meet their own needs
  • Core Elements
    • Inter-generational equity
    • Intra-generational equity
  • Strategies for Sustainable Development
    • Use of Non-Conventional Energy Sources (solar, wind)
    • LPG and Gobar Gas in rural areas (reducing firewood reliance)
    • Compressed Natural Gas (CNG) in urban transport
    • Organic Farming (eliminating chemical fertilizers/pesticides)
    • Recycling and waste management
    • Public awareness and community participation