The scope of environmental problem
-
Upload
biancasisonsiriban -
Category
Documents
-
view
158 -
download
1
Transcript of The scope of environmental problem
The Scope of
Environmental
Problem
Daligdig, Marica Janelle
Melinas, Michellyn Mae
Siriban, Bianca Denise
2A15
Environment Today
Environment Today
19th century
American immigrants sent a picture of their
new hometown which looks like this.
Environment Today
These smokestacks were a point of pride
because it implies that cities was
prospering economically.
“It was a small price to pay
for economic progress…..”
Environment Today
20th century
Industrialization spread
Population increased
Resources become scarce
Environment Today
Because of INDUSTRIALIZATION
What is earth?
A single ecosystem, consisting of a
community of
animals, plants, microorganisms, and the
like.
Pope John Paul II
“We cannot interfere in one area of the
ecosystem without paying due attention
both to the consequences of such
interference in other areas and to the well-
being of future generations”
-The Ecological Crisis: A Common
Responsibility
Lack of attention….
Lack of attention…
Leads to…..
Greenhouse effect
a process by which thermal radiation from
a planetary surface is absorbed by
atmospheric greenhouse gases, and is re-
radiated in all directions.
Depletes the ozone layer leading to
GLOBAL WARMING
GLOBAL WARMING
Pope John Paul II says
Ecological crisis is the result of profound
DISRESPECT FOR LIFE
Without respect for human dignity and for
God’s creation, there is no way out of this
crisis.
American bishops say
“A society that will easily dispose of
God’s good earth will also find
disposing of people easy as well.”
Ecological Crisis
LAND
Used to grow food
But now, subject to:
Waterlogging
Saturation of soil with water
Salinization
a build up of salts in soil, eventually to
toxic levels for plants.
Soil Erosion
a natural process but soon becomes a
problem when human activity causes it to
occur much faster than under natural
conditions.
Status today:
Farm land turned into desert, subdivisions
Use of rainforest
Serve as home for plant and animal
species
Medicines to be derived from tropical
species
Helps in absorption and neutralization of
greenhouse gases
Helps in the improvement of nutrients of
vegetation
With the loss of
rainforests, many will
suffer.
Lives of everyone would
be endangered.
WATER
Facts on water
consumption today
Over 1 billion people lack access to
clean water in developing countries.
Use of unsafe water lead to over 80%
diseases which kills more than 25,000
people everyday ( UN & WHO)
Contamination of water
Industrial pollutants are major factor of
the contamination of world’s water supply
Underground tanks’ leak and seep into
ground water
Pesticides seep into ground, run off with
rain then contaminates groundwater and
nearby streams and rivers
Contamination of water
Other sources of water pollution:
Excess organic matter
Thermal pollution
Infectious organisms
Facts on water pollution:
Oceans provide habitat for aquatic
creatures, food and drinkable water for
humans.
But oceans are not immune from
pollution…..
Facts on water pollution 10% of world’s coral reefs have been
completely destroyed; Philippines has only 5% remaining coral reefs which are in good condition.
Cruise ships generates water pollution for producing a big number of waste
Every summer, nutrient pollution creates a dead zone
Every year, over 300,000 dolphins, porpoises, and whales die because of entanglement in fishing nets
God created the
earth to nurture
not to destroy.