Transcript SS7G2 The student will discuss environmental issues across the

SS7G2 The student
will discuss
environmental issues
across the continent of
Africa.
Strands
a. Explain how water pollution and the
unequal distribution of water impacts
irrigation, trade, industry, and drinking
water.
b. Explain the relationship between poor soil
and deforestation in Sub-Saharan Africa.
c. Explain the impact of desertification on the
environment of Africa from the Sahel to the
rainforest.
Water Changes Everything!!
http://youtu.be/BCHhwxvQqxg
The largest cause of water
pollution in Africa is from
human activity.

Bathing, washing and defecating in
the water produces pollution in the
water. Other acts such as mining,
industry and the damming of water
ways have also produced water
pollution.
Africa faces huge challenges with
multiple issues that adversely
affect public health.

Water Pollution

Unequal distribution of Water
Africa's Water

Many countries in Africa do not have
enough clean water even though they
have large rivers!!!!

Why??? Because of the
contamination of the water sources
that they do have or not being close
enough to fresh water sources
SS7G2
b. Explain the relationship between
poor soil and deforestation in SubSaharan Africa
 .c Explain the impact of desertification
on the environment of Africa from the
Sahel to the rainforest

http://www.youtube.com/watch?v=ghp0_YB0osw
Deforestation Vs Desertification
Deforestation
 Deforestation is the
clearance or the removal
of a forest accelerating
into the remaining areas
of undisturbed forest, and
the quality of the
remaining forests is
declining.
Desertification
 Desertification is the
degradation of land in
arid or semiarid regions
caused by climatic
changes, human
influence, or both.
http://www.youtube.com/watch?v=kl1N1f8N6LU
Deforestation in Africa
As a result of deforestation and desertification in the Sahel Region,
that why its becoming and expanding desert. The Sahel was once
believed to be very good farm land
Why Deforestation?

Deforestation is typically done to
make more land available for housing
and urbanization, timber, large scale
cash crops such as soy and palm oil,
and cattle ranching.
Effects of Deforestation

Loss of Species:

Soil Erosion
Effects of Deforestation Cont..

Life Quality: Soil erosion can also
lead to silt entering the lakes,
streams, and other water sources.
This can decrease local water quality,
contributing to poor health in the local
population.
What Causes
Desertification?
Overgrazing
 Destruction of plants in dry regions is
causing desertification to occur.
People are cutting down tress to use
them as a source of fuel. Once all
these trees are cut down there is
nothing to protect the soil. Therefore,
it turns to dust and is blown away by
the wind.

The Effects Of
Desertification
Soil becomes less usable
 Vegetation is Lacked or Damaged
 Food Loss
 Causes Famine
