The lecturer disputes the idea presented in the reading that ethanol cannot be an alternative source of energy to gasoline. He asserts that ethanol has some advantages over gasoline in terms of being environmentally friendly substance. and does not cause a scarce in food supply to animals, so he refutes each claim presented by the author.
First, the lecturer argues that plants that produces ethanol reduces the greenhouse effect. The author claims that ethanol causes global warming because the extraction process results in an increase in temperature. However, the lecturer suggests that ethanol cannot have such effect because the producing plants consumes carbon dioxide from air and releases oxygen, which in turn, causes a reduction in the continuous increase in temperature on the surface of the earth.
Secondly, the lecturer states that using large amounts of plants to extract ethanol does not cause a reduction in food supply to animals. The author posits that extracting ethanol plants causes animal hunger because no food would become available for animals. However, the lecturer contends not all parts of the plant is needed to extract ethanol but, Specifically, the part which contains cellulose cellulose is the one needed. Thus, extraction of ethanol from plants does not tremendously affect the food supply to animals because animals does not eat the cellulose part of the plant.
Finally, the lecturer states that the cost of producing ethanol is not a big concern. The author claims that using ethanol instead of gasoline for energy supply is a costly option. On the other hand, The lecturer states that even though the cost of extracting ethanol is expensive at the moment, It is most likely to decrease once production increases. For instance, a three fold increase in production of ethanol for energy would result in a 40% reduction in price. Thus, the extraction of ethanol would not only be feasible, but also economical.
The
lecturer
disputes the
idea
presented in the reading that
ethanol
cannot be an alternative source of energy to gasoline. He asserts that
ethanol
has
some
advantages over gasoline in terms of being
environmentally
friendly substance.
and
does
not
cause
a scarce in
food
supply
to
animals
,
so
he refutes each claim presented by the author.
First
, the
lecturer
argues that
plants
that produces
ethanol
reduces
the greenhouse effect. The author claims that
ethanol
causes
global warming
because
the extraction process results in an
increase
in temperature.
However
, the
lecturer
suggests that
ethanol
cannot have such effect
because
the producing
plants
consumes carbon dioxide from air and releases oxygen, which in turn,
causes
a reduction in the continuous
increase
in temperature on the surface of the earth.
Secondly
, the
lecturer
states that using large amounts of
plants
to extract
ethanol
does
not
cause
a reduction in
food
supply
to
animals
. The author posits that extracting
ethanol
plants
causes
animal
hunger
because
no
food
would become available for
animals
.
However
, the
lecturer
contends not all parts of the
plant
is needed
to extract
ethanol
but
,
Specifically
, the part which contains
cellulose cellulose
is the one needed.
Thus
, extraction of
ethanol
from
plants
does
not
tremendously
affect the
food
supply
to
animals
because
animals
does
not eat the cellulose part of the plant.
Finally
, the
lecturer
states that the cost of producing
ethanol
is not a
big
concern. The author claims that using
ethanol
instead
of gasoline for energy
supply
is a costly option.
On the other hand
, The
lecturer
states that
even though
the cost of extracting
ethanol
is expensive at the moment, It is most likely to decrease once production
increases
.
For instance
, a
three fold
increase
in production of
ethanol
for energy would result in a 40% reduction in price.
Thus
, the extraction of
ethanol
would not
only
be feasible,
but
also
economical.