This document summarizes key information about human population growth and its impact on the environment. It notes that the global population has increased over the past 100 years and is projected to grow from 6.7 billion in 2006 to 9.2 billion by 2050. The main causes of population explosion are increased fertility rates, reduced infant mortality, increased food production, and longer lifespans. The impacts of overpopulation include increased pollution, deforestation to build homes, stress on freshwater availability, higher resource consumption, global warming, and loss of habitats. Human activities that negatively impact the environment are identified as deforestation, overpopulation, waste, pollution, overuse of natural resources, and the energy industry.

1. NATIONAL SPORTS
UNIVERSITY
TOPIC : HUMAN POPULATION AND THE
ENVIRONMENT
SUBMITTED BY : SHASHIBHAN TIWARI

2.  Global population growth has
increased over the past 100 years.
 Human population is projected to
increase from 6.7 billion in 2006
to 9.2 billion by 2050.
 Every second , 4 or 5 children are
born somewhere on the earth and
2 people die .

3. Population Explosion
An enormous growth of human beings is called as population explosion.
Causes:
1. Fertility
2. Reduced Infant Mortality Rate
3. Increased food production
4. Longevity

4. Impacts
• Pollution – increase in cars and emission of greenhouse gases into atmosphere
• Deforestation –to build houses for increasing population
• Freshwater Availability – increase in waste production and contamination of water
• Natural Resources – increase burning of fossil fuels, excessive use of coal
• Global Warming – overall increase in temperature and chances of natural disasters
• Habitat Loss – change in ecosystems affecting tropic levels

5. The adverse effects caused by
development, industrial, or
by the release of a substances
in the environment or by any
other human activity…
HUMAN IMPACT ON
ENVIRONMENT ?

6. DEFORESTATION,
OVER-POPULATION
WASTE
POLLUTION
OVERUSE/WASTAGE OF
NATURAL RESOURCES
ENERGY INDUSTRY etc....
Factors contributing to environmental loss are:

8. priorities to save Environment

9. Thank you