Subject(s): Sustainable Development -- Climatic changes -- Green house -- Climate and some related global phenomena : Climate classification, past major climate changes, Indian summer monsoon, El Ni no an southern Oscillation (ENSO), hydrological cycle, carbon cycle -- Radiation and greenhouse gases : Solar radiation, latitudinal variations in solar radiation, depletion of solar radiation, terrestrial radiation, role of aerosol, ozone and trace gases, rational balance, greenhouse gases and atmospheric chemistry, forcing response relationship, global warming potentials -- Global evidences of changes in climate and environment : Melting of snow , ice and glaciers, excessively cold winter in Europe, bleaching of great barrier reef, ozone hole, Asian brown cloud -- Evidence of climatic and environmental changes in India, indications of warming, increase in fog days, anow ablation and snow fall, rainfall, monsoon depressions and cyclones, sea level rise, water stress, mangrove wetlands and ecosystems, deforestation and desertification, environmental degradation -- Possible impacts of climate change in India : Impact on Indian agriculture, impact on forest, coastal zone and mangrove ecosystems, impact on mountain ecosystem -- Clean technology and energy : Clean development mechanism, some GEF-UNDP projects for low carbon, clean technology, alternate energy -- Mitigation efforts by government of India : GHG emissions estimation, environmental protection policies, collaboration with global agencies, clean development mechanism (CDM) in India, national science programs -- Issues of concern in some important sectors : Energy use and management, sustainable forest management, adaptation measures in agriculture, coastal zone management, conservation of water, biodiversity, land use and land cover changes -- Uncertainties and possible approaches : Climate change, integrated methods of observation and data use, useful predictions, educating people on climate change, development and environment, role of environmentalist, need for effective science policy interface, regional climate change