3. introduction
The crisis we face is very alarming
The major conflict:
ENVIRONMENT v/s DEVLOPMENT
Development doesn’t compromise with environment and
biodiversity
With ever increasing global population the situation is
even worsened
Clash of politics regarding environmental values &
interests that occurs in the course of formulating and
implementing policies
No alternatives in effective use
4. So far many environmental issues are citing immediate
interventions
IT’S A DO OR DIE
SITUATION !!!!
The most striking and evident 10 environmental
problems are listed below
Climate Change & global warming
Ozone Depletion
Biodiversity Loss
Ocean Exhaustion
Desertification
Ozone depletion
Wastes
Pollution
Deforestation
Population growth
8. General increase in temperature
caused by increased amount of
green house gases around the Earth
Estimated rise in global
temperature is 1.4 – 5.8 ºC by 2100
MAJOR IMPACTS
rise in sea level { 9-88 cm by 2100}
Drowning of rice fields and island
nations
Coral bleaching and loss of
biodiversity ; algal blooms
Vectors active; spread of diseases
10. October 1999 (average)
Historically, the Antarctic ozone hole is
largest during October. This image
shows the data from the Total Ozone
Mapping Spectrometer (TOMS) Earth
Probe, for the month of October 1999.
September 17th 2010
Satellite data show the area of the 2010
Antarctic ozone hole peaked at a size roughly
equal to that of recent years about the same
area as North America. Researchers have
observed a leveling-off of the hole size and
predict a slow recovery.
11.
Destruction of stratospheric ozone by CFCs
Strong UV
ODS
splits
gases
releasing chlorine and bromine atoms
Bromine & chlorine atoms destroys ozone
One ‘Cl’ atom can destroy over 100,000 ozone
molecules
IMPACTS : a) thinning of ozone layer
b) direct influx of UV rays
c) causes skin cancers, burns,
destruction of plant leaves, irritations etc
12. DESERTIFICATION
Extreme deterioration of land {arid & sub-humid areas}
Major reasons:
a) loss of soil moisture & vegetation
b) influenced by man made activities and
climate changes
300 million hectares of farm land now abandoned world wide
Affects about 41% of global land area
Affects livelihood of more than 1 billion people in over 110
countries
A typical example :
The expansion of Gobi Desert by 52000 km²,
from 1994- 1999, now 150 miles away from Beijing
18. POLLUTION
Undesirable events taking place in the environment
Pollutants responsible for pollution
Types of pollution: 1) air pollution
2) water pollution
3) soil/land pollution
4) noise polluition
24. Noise pollution
sound is very loud or
continuous noise
which is considered
unpleasant and harmful
to people.
25. Biodiversity loss
Loss of biodiversity at an alarming rate
Scientists figured – “the 6th extinction”
REASONS : mainly anthropogenic intervention
a) Habitat loss and fragmentation
29. MAJOR IMPACTS
Habitat loss
Loss of biodiversity
Occurrence of natural calamities
Destabilization of climate
Loss of livelihood
Oxygen imbalance
34. solutions
2 concepts for control approach:
Assimilative capacity concept
Principle of control concept
IMPORTANT MEASURES
Education for children on public health and sanitations;
their rights and duties
People must learn to measure and estimate the amount
of pollution in their surroundings
Effective intervention of government departments on
health , environment related issues
35.
Where pollution is severe the authorities should
conduct regular inspections
Need to separate dry waste from wet waste- wet
waste need needs to be composed for agricultural
use
Reduce vehicular pollution – promote public
transport systems
Sewage water should treated and used for irrigation
Building of watersheds
Reduced use of fossil fuels- use of CNG and other
cleaner fuels
Bioremediation and biofiltration
Reduce , Reuse & Recycle
Afforestation and effective banning of illegal
poaching
36.
37.
38. conclusion
Need of immediate intervention into the global
environmental problems
Need of sustainable development
Green economy
Effective implementation of global environmental policies
Role of governments, NGOs, individuals
Role & effective use of biotechnology resources
Education and empowerment programs