- The document discusses several environmental issues including global warming, air pollution, water pollution, deforestation, overfishing, industrialization, nuclear power, and overhunting. - It provides details on the causes and effects of each issue, with examples such as melting ice due to global warming, health impacts from air pollution, widespread contamination from Fukushima disaster, and species decline from overhunting. - Statistics are presented on topics like nuclear power plants worldwide, Amazon deforestation levels, extent of overfishing problem, and endangered species populations.

2. Members
 Nguyễn Tấn Huy 1258023
 Ngô Thị Xuân Uyên 1258092
 Lê Hoàng Phương Anh 1 1258004
 Huỳnh Thanh Nguyên 1258023
 Phạm Hưng Thịnh 1258076

3. Introduction

4. Compare the pictures

5. Global Warming

6. Global Warming
is a general increase
in world
temperatures caused
by increased amount
of carbon dioxide
around the Earth.

7. Air pollution

8. Air pollution
The air in our towns
and cities is very
polluted with gases,
car fumes, smoke. It
is becoming more and
more difficult to
breathe.

9. The destruction of the ozone layer

10. The destruction of the ozone layer
The ozone layer is
damaged and it is
very dangerous for
our planet. The
ozone layer is a
layer of gases in the
sky that prevents
harmful radiation
from the sun from
reaching the Earth

11. Heavy traffic

13. Water pollution

14. Water pollution
 Water pollution occurs when harmful substances
are released into the water in large quantities
which cause damage to people, wildlife, or habitat
or indirectly into water bodies without proper
treatment to remove harmful compounds.

15. Wastes

17. Effects of water pollution
 Water pollution is a major problem
in the global context. It has been
suggested that it is the leading
worldwide cause of deaths and
diseases, and that it accounts for
the deaths of more than 14,000
people daily.
 An estimated 700 million Indians
have no access to a proper
toilet,and 1,000 Indian children die
of diarrhea sickness every day.
Some 90% of China's cities suffer
from some degree of water
pollution, and nearly 500 million
people lack access to safe drinking
water.

18. Air Pollution
1. Causes:
Both human and natural actions

19. Natural events:
 forest fires
 volcanic eruptions
 wind erosion
 pollen dispersal
 natural radioactivity

20. Human activities that result in air pollution include:
 Emissions from industries and manufacturing
activities

22.  Burning Fossil Fuels
Fumes from car exhaust contain dangerous gases such as
carbon monoxide, oxides of nitrogen, hydrocarbons and
particulates.

23.  Household and Farming Chemicals
Crop dusting
Household cleaning
products
 Painting supplies
Over the counter
insect/pest killers
Fertilizer dust

24. 2. Effects
Human health

27.  Animals and plants
 Acid rain
 The atmosphere as whole

28. Global warming
Global warming and climate change are
terms for the observed century-scale rise in
the average temperature of the
Earth's climate system and its related effects.
 2014 is the warmest year on record since
1880

30. The effects of global warming are the environmental
and social changes caused (directly or indirectly) by
human emissions of greenhouse gases.
Many impacts of climate change have already been
observed:
Melting ice or glacier retreat
Changes in the timing of seasonal events
Changes in agricultural productivity

34. Industrialization
Effect

35. Nuclear power

36. Effect of Fukushima disaster on
the Environment
 A large amount of radioactive cesium enters an
ecosystem
 Quickly becomes ubiquitous, contaminating water, soil,
plants and animals
 Produced the largest discharge of radioactive material
into the ocean in history

38. Number of Nuclear power plants in the World

39. Deforestation

40. Effects
 Flood
 Lack of Oxygen => Green house effect
 Loss of species
 Soil Erosion

41. Amazon Deforestation
The area of Amazon
rainforest cleared rose
from 415,000 to
587,000 km2

42. Overfishing

43. Why is overfishing a problem?
• No time for recovery
• Fish populations collapsing
• Supply limited
(Koster, 2007)

44. Data About Extent of Problem

45. Cause of Overfishing
• mainly over-exploitation
(Jeantheau, 2005)

46. Impact on Environment
Low growth rates
Changes in species composition & biodiversity
Extreme changes to the ocean:
1. Degradation of reefs
2. Destruction to bottom grasses

47. Impact on Human Health
• Prevents heart disease and strokes
• Poverty countries depend on fish
• Omega-3 fatty acids
• Overfishing = all of the above gone

49. Japanese Whaling History
 Begun at 12h century
 On an industrial scale began around the
1890s
 During the 20th century, Japan was heavily
involved in commercial whaling
 International Whaling Commission (IWC)

51. Overhunting

53. Woolly Mammoths

54. Polar Beers

55. Caspian Tigers

56. Number left in wild in 2012

57. Solution

58. Act on climate
 Forego Fossil Fuels
 Consume Less
 Stop Cutting Down Trees
 One Child

59. Water crisis
 We rely on clean water to survive
 Dirty water is the world's biggest health risk