CAUSES OF DEFORESTATION
Deforestation is the permanent destruction of forests in order
to make the land available for other uses
CAUSES
There
are many causes of deforestation. The WWF reports that half
of the trees illegally removed from forests are used as fuel.
Forests
are cut down for many reasons, but most of them are related to money or to people’s
need to provide for their families. The biggest driver of deforestation is
agriculture. Farmers cut forests to provide more room for planting crops or
grazing livestock. Often many small farmers will each clear a few acres to feed
their families by cutting down trees and burning them in a process known as
“slash and burn” agriculture. Not all deforestation is intentional. Some is
caused by a combination of human and natural factors like wildfires and
subsequent overgrazing, which may prevent the growth of young trees.
SOME
OTHER COMMON REASONS ARE:
- To make more land available for housing and urbanization
- To harvest timber to create commercial items such as paper, furniture and homes
- To create ingredients that are highly prized consumer items, such as the oil from palm trees
- To create room for cattle ranching
Common
methods of deforestation are burning trees and clear cutting. These tactics
leave the land completely barren and are controversial practices.
Clear
cutting is when large swaths of land are cut down all at once. A forestry
expert quoted by the Natural
Resources Defense Council describes clear cutting as "an ecological
trauma that has no precedent in nature except for a major volcanic
eruption."
DEFORESTATION AND CLIMATE CHANGE
Deforestation is considered to be one of the contributing factors to global climate change.
the No. 1 problem caused by deforestation is the impact on the
global carbon cycle. Gas molecules that absorb thermal infrared radiation are
called greenhouse
gases. If greenhouse gases are in large enough quantity, they can force
climate change.
The deforestation of trees not only lessens the amount of
carbon stored, it also releases carbon dioxide into the air. This is because
when trees die, they release the stored carbon. According to the 2010
Global Forest Resources Assessment, deforestation releases nearly a billion
tons of carbon into the atmosphere per year, though the numbers are not as high
as the ones recorded in the previous decade. Deforestation is the second
largest anthropogenic (human-caused) source of carbon dioxide to the
atmosphere, ranging between 6 percent and 17 percent.
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