Here one will come to know indepth knowledge of environmental issue and problems of the world with detail picture

1. Major Environmental Problems of
the World
Lecture-2
Peter P. Debbarma
Asst. Professor

2. What is Environmental Problems and
Issues
• We can define environmental issues as the
harmful effects of any human activity on the
environment.
• Environmental issues are defined as problems
with the planet's systems (air, water, soil, etc.)
that have developed as a result of human
interference or mistreatment of the planet.
• This includes both the biological and physical
aspects of the environment.
• Air pollution, water pollution, natural environment
pollution, garbage pollution, etc. are some of the

3. What are Environmental Concerns?
• Our Mother Earth is currently facing a lot of environmental
concerns. The environmental problems like global
warming, acid rain, air pollution, urban sprawl, waste
disposal, ozone layer depletion, water pollution, climate
change and many more affect every human, animal, and
nation on this planet.
• Over the last few decades, the exploitation of our planet
and the degradation of our environment has gone up at an
alarming rate. As our actions have been not in favor of
protecting this planet, we have seen natural disasters
striking us more often in the form of flash floods,
earthquakes, blizzards, tsunamis, and cyclones.

4. List of Major Environmental Problems
• 1. Environmental Pollution (Air, Water , Land & Noise)
• 2. Environmental, Degradation & Depletion (Ozone
Depletion, Green house Effect)
• 3. Environmental Waste (industrial, Plastic, solid, matter)
• 3. Climate Change( Global warming, Rain system, Acid Rain,
frequent storms and unpredictable weather)
• 4. Natural Disaster (Flood, Earthquakes, storms)
• 4. Biodiversity Loss (habitat destruction, loss of flora anf
Fauna
• 5. Deforestation and Desertification
• 6. Over-Population and Over extraction of Resources.
• 7. Cultural Pollution and Human-Induced Disaster

5. 1. Environmental Pollution
• Pollution is the introduction of contaminants into
the natural environment that cause adverse
change. Pollution can take the form of chemical
substances or energy, such as noise, heat, or
light. Pollutants, the components of pollution,
can be either foreign substances/energies or
naturally occurring contaminants. Pollution is
often classed as point source or nonpoint source
pollution. In 2015, pollution killed 9 million
people worldwide

6. 1.2 Types of Pollution

7. 1.3- Air Pollution

8. 1.3. LAND-POLLUTION-
Industrial, Bio-Medical waste, Solid waste, Plastic
waste etc

9. 1.4 Clean water crisis

10. 1.5 Noise Pollution

11. 1.6 Effects of Pollution

12. 2. CLIMATE CHANGE-What are the
pieces of evidence of Climate Change?
• Evidence of Climate
Change
• Sea level rise
• Global temperature rise
• Warming oceans
• Shrinking ice sheets
• Declining Arctic sea ice
• Glacial retreat
• Extreme natural events
• Ocean acidification
• Decreased snow cover
Simple Definition Of Climate Change
Climate change is the global
phenomenon of climate transformation
characterized by the changes in the
usual climate of the planet (regarding
temperature, precipitation, and wind)
that are especially caused by human
activities. As a result of unbalancing the
weather of Earth, the sustainability of
the planet’s ecosystems is under threat,
as well as the future of humankind and
the estability of the global economy.

13. 2.1 GLOBAL WARMING
Global warming is the long-term warming of the planet’s overall
temperature.

14. 2.2 Causes global Warming

15. 2.3 Mechanism of Global warming-
GREEN- HOUSE EFFECT
The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This
process makes Earth much warmer than it would be without an atmosphere. The greenhouse effect is one of
the things that makes Earth a comfortable place to live.

16. 2.4 Effects of Global warming-
Ice Melting

17. 2.5- effects of global warming
SEA LEVEL RISE

18. 2.6-SEA Level rise Consequences
Sea Level-Submergence of Lowland areas, City,
coasts and some countries

19. 3. Ozone Depletion- UV rays depletion
skin cancer and other harmful
radiations of the sun

20. 4. Deforestation and Desertification

21. 5. ACID RAIN

22. 5.1 Acid Rain formation

23. 6. Biodiversity Loss

24. 6.1 Loss of Flora-Plants and Trees

25. 6.2 Loss of Fauna- Animals and
Extinction

26. 7. Genetic Engineering

27. 8. Over Population

28. 8.1 Over-crowding

29. 9. World Food Crisis

30. 9.1

31. 10. HUMAN RIGHT ISSUES

32. Hunger and Poverty-Inequality

33. 11. WOMEN AND CHILD ISSUES

34. References
• Disclaimer-These PPT are arranged from
various sources for easy understanding of
students and I do not claim my own work.
• Btitanica, Wikipaedia, National Geographic,
• Byju notes
• Global Stewardsm, Environmental issues and
Concern issues
• Some ppt derived from other slideshares ppt