LMTSOM. WHAT IS ECOLOGY. Study of the “house/environment” in which we live . Ecology is study of interactions between non-living and living components in the environment. light water wind nutrients in soil heat solar radiation atmosphere, etc. Living organisms… Plants Animals
Ecology is an integrated and dynamic study of the environment.
Land use changes (Deforestation & Degradation)
Construction and Excavation
Green House Effect
Degradation can be deforestation, desertification, soil erosion, mineral depletion, or chemical degradation (acidification and salinization)
Pesticides & insecticides
Increased to 2.5 million tons annually
World Health Organization estimated in 1992 that 3 million pesticide poisonings occur annually, causing 220,000 deaths.
Decompositionof organic matter in the soil
Much of the methane emitted into the atmosphere is caused by the decomposition of organic matter in wet soils such as rice paddies.
Wet or anaerobic soils also lose nitrogen through denitrification, releasing the greenhouse gasnitric oxide.[
Human ActivityConstruction Dams
River line and Coastal Erosion
Nuclear weapons emit large amounts of thermal radiation as visible, infrared, and ultraviolet light
Anthropogenic changes .
Chief hazards are burns and eyeinjuries
Burns visible on a people in Hiroshima during the blast.
Coolant in refrigerators and air conditioners
The propellant in aerosol dispensers
The foaming agent in the production of plastic foam cups and containers
Factories had short funnels to let out smoke, but this caused many problems locally
An extremely destructive form of pollution, and the environment suffers from its effects.
Issues addressed included:
new reliance on public transportation systems in order to reduce vehicle emissions, congestion in cities and the health problems caused by polluted air and smog
Chlorofluorocarbons (CFCs) Phase-out Management Plan
Hydrochlorofluorocarbons (HCFCs) Phase-out Management Plan (HPMP)
Statutory organisation, was constituted in September, 1974 under the Water (Prevention and Control of Pollution) Act, 1974.
Broad objectives of the Ministry are:
This Act is formulated to prevent and remediate soil and groundwater pollution, ensure the sustainable use
Earth Hour started in 2007 in Sydney, Australia when 2.2 million homes and businesses turned their lights off for one hour to make their stand against climate change.