2. IMPACTS OF POPULATION GROWTH
• Impacts of • Impacts of population
population growth growth on biological
on physical environment.
environment. • Biological
environment
• Physical comprises of
environment means human, biological
– non living systems, flora and
environment or the fauna, living creatures
land, air, water, soil from moth to
and minerals. midgets.
3. Impacts on physical environment
Most critical resources for human life.
Population Growth Utilization + Overuse
+ Misuse of physical resources
Includes impacts on fresh water, owen
valleys, waste management, allocation of
resources, changing of consumption
pattern, rising demand for energy etc
4. Impacts on biological environment
• The biological components are bound to suffer
the consequences.
• Natural processes have been altered seriously
that have caused serious imbalances in
ecosystems.
• Includes impacts on destruction of
habitats, water crisis, Generalization of
waste, endangerment to species, health
condition etc
5. Population and Sustainable
Development
• 5 to 7 million hectares of agricultural lands are lost to
accelerating land degradation and rapid urbanization.
• 2 billion hectares is degraded as a result of overgrazing
and poor farming practices.
• Another 16 to 20 million hectares of tropical forests
and woodlands are lost each year.
• Water scarcity defined as less than 1,000 cubic metres
per person per year.
• climate experts worry that continued increases in
atmospheric concentrations of CO2 – already 28 per
cent higher than pre-industrial levels .
6. Population and Sustainable
Development
• Develop technologies to minimize damage to
natural systems & make it widely available to
developing countries as well.
• Sustainability in all areas of economic
activity, including
agriculture, industry, forestry, fisheries, transp
ortation and tourism.
• Successful efforts to alleviate poverty.
• Education, basic health care – including family
planning and reproductive health care.
7. Pollution
Pollution is the introduction by man
into the environment of contaminants
that contains harmful substances
8. Air pollution
• Air pollution is the modification of the natural
characteristics of the atmosphere by a
chemical, particulate matter, or biological
agent. The atmosphere is the complex
, dynamic natural gaseous system that is
essential to support life on planet earth.
Stratosphere ozone depletion due to air
pollution has long been recognized as a threat
to human health as well as to the earths
ecosystem.
9. Water pollution
• Water pollution is the large set of adverse
effect upon water bodies such as
lakes, rivers, oceans, and groundwater caused
by human activities.
10. Noise pollution
• Noise pollution is displeasing human or
machine created sound that disrupts the
activity or happiness of human or animal life.
• A common form of noise pollution is from
transportation, especially from motor
vehicles.
11. Causes and effects of noise pollution
• No one on earth can escape the sounds of
noise- an unwanted, disturbing sound that
causes in the eye of beholder.
• Noise is the disturbance to the human
environment that is escalating at such a high
rate that it will become major threat to the
quality of human lives.
12. Soil Pollution
• Soil pollution is defined as the build-up in soils
of persistent toxic
compounds, chemicals, salts, radioactive
materials, or disease causing agents, which
have adverse effects on plant growth and
animal health.
