G.E. -Contemporary World

1. Environmental Crisis and
Sustainable
Josefino T. Larena Jr. ,CPS,MPA

2. Learning Outcomes
• Discuss the origins and manifestations of
global environmental crises
• Relate everyday encounters with
pollution,global warning desertification ,ozone
depletion,and many others with a larger
picture of environmental degradation
• Examine the policies and programs of
governments around the world that address
the environmental crisis

3. The World’s leading Environmental
Problems
• 1. The depredation caused by industrial and
transportation toxins and plastic in the
ground.
• Changes in global weather patterns (
Flash,foods,extreme, snowstorms and the
spread of deserts)
• Overpolulation
• Mining

4. The World’s leading Environmental
Problems
• Waste disposal catastrophe due to the
excessive amount of waste ( from plastic to
food packages to electronic waste)
• The destruction of Million year old ecosystems
and the loss of biodiversity ( Destruction of
the corals reefs and massive deforestation
• Deadly acid rain as a result of fossil fuel
combustion ,toxic chemicals from erupting
volcanoes

5. The World’s leading Environmental
Problems
• The depletion of the ozone layer protecting
the planet from the sun’s ultraviolet rays due
to chlorofluorocarbons in the atmosphere
• Urban development : DESTROYING
FARMLANDS,increasing traffic gridlock
• Pandemics ad other threats to public health

6. Man- made Pollution
• The major difference between natural and
man-made air pollution is that continuous or
temporary natural events cause natural air
pollution, but human activities are responsible
for man-made pollution. We can't prevent
natural air pollution from sources like
volcanoes, but we can reduce man-made
pollutants and their consequences: respiratory
diseases, acid rain and global warming.

7. Air Pollution
• Air pollutants are gases and
particles that harm people or other
life, damage materials or reduce
visibility. Some air pollution comes
from volcanic eruptions, forest fires
and hot springs, but most is the
result to human activities. Power
plants, factories, cars and trucks
emit carbon dioxide, carbon
monoxide, hydrocarbons, sulfur
dioxide, nitrogen dioxides and
particulate matter that consists of
fine particles suspended in the air.
Burning oil, coal, gasoline and other
fossil fuels is a major cause of man-
made air pollution.

8. Air Pollution
• Other man-made sources of air
pollution include:
• waste disposal
• dry cleaning
• paints
• chemical manufacture
• wood stoves
• flour mills

9. Air Pollution Effects
• Natural and man-made air pollution harm humans, other
life and the environment. Particulate matter from burning
wood and fossil fuels lodges in lungs, causing respiratory
problems, and settles in a fine film over buildings, trees and
crops. Carbon monoxide interferes with the blood's ability
to transport oxygen and causes headaches, heart damage
and death. Sulfur dioxide, which is a product of burning
coal, irritates eyes, damages lungs and makes rain acidic.
Acid rain damages buildings and forests and kills aquatic
life. Another contributor to acid rain is nitrogen dioxide
emitted by vehicles, industrial boilers and other industrial
processes. Lead from leaded gasoline, power plants and
metal refineries contaminates crops and livestock and
causes brain and kidney damage.

10. Global Warming
• Greenhouse gases that cause global warming have increased 31
percent since preindustrial times. Carbon dioxide and other gases
trap heat in the atmosphere, causing global temperatures to rise.
Although carbon dioxide has natural sources, such as volcanic
eruptions, human activities have caused an increase from 280 parts
per million before the development of industry to 370 parts per
million today. Other greenhouse gases include methane and nitrous
oxide -- which human activities also produce -- that have
contributed to a 0.6 degree Celsius (1 degree Fahrenheit) increase
in the global air surface temperature in recent decades. Particulate
matter from vehicles, factories, fires and eruptions cools the
atmosphere, but researchers at the National Center for
Atmospheric Research still predict a 90 percent chance that human
activities will cause a 1.7 to 4.9 degree Celsius (3.1 to 8.9 degree
Fahrenheit) increase in global temperatures by 2100.

11. CATCHING UP AND GETTING REAL
with the Climate Crisis
• A crisis of this scale can only be tackled by the whole of
society acting together through government. But
governments, in particular, will need to do more than ‘sell’
their green policies, one by one, to the public
opportunistically on the basis of their incidental benefits or
of hiding their cost. They will need to make a strong, bold,
courageous, effort to get out there and explain, proactively,
to the public the depth and horror of the crisis we are in,
the frightening magnitude of the threat we face and of the
changes that we, collectively as a society, will need to
make. They will need, in effect, to ‘get real’ with the public.
They will probably never do that unless somebody else
begins to do it, first.

12. Illegal logging
• the harvest, transportation, purchase or sale
of timber in violation of laws. The harvesting
procedure itself may be illegal, including using
corrupt means to gain access to forests;
extraction without permission, or from a
protected area; the cutting down of protected
species; or the extraction of timber in excess
of agreed limits.

13. Mining
• Mining is the extraction of
valuable minerals or other
geological materials from
the Earth, usually from an
ore body, lode, vein, seam,
reef or placer deposit.
These deposits form a
mineralized package that is
of economic interest to the
miner.

14. Natural Disaster

15. Projects involvement to preserve
mother nature

16. Mangrove Planting

17. Beach Clean up

18. Tree Planting

19. Environmental awareness

20. Green City

21. Recycle Projects

22. trash fashion

23. Evaluation of Nature Sites

26. Thank you so much