Selasa, 15 Mei 2012
hortatory exposition about global warming
Global warming is one of the most serious challenges facing
us today. Global warming is basically
the increase in the temperatures of the Earth's atmosphere, land masses and
oceans. The Earth's surface temperature is at an average of 59F and over the
last hundred years, this figure has risen to about 1F. By the year 2100, the
average change in the temperature of the Earth could range from 2.5F to about
10F, enough to melt glaciers and polar ice caps.
The cause of global warming Global warming has and will always
occur naturally.it has become such a
concern in our lifetime is due to the fact that human activities and practices
have contributed significantly to its occurrence and severity. Tropical deforestation is the largest
source of emissions for many developing countries, but slowing deforestation
can't solve the climate problem by itself.Other
human practices that contribute to global warming is the agricultural revolution has also
contributed to global warming. As more and more communities need lands converted
from forests to residential and commercial areas, biomass is reduced,
contributing to the increase in the presence of carbon dioxide in those
regions. Since carbon dioxide is processed by plants and trees, their absence
contributes to its increase.
It is estimated that about 25% of the annual increase in the
carbon dioxide found in the Earth's atmosphere is caused by extreme changes and
usage of the Earth's natural resources. Other practices also include
deforestation, salinization, desertification and overgrazing also contribute to
global warming. The causes of global warming are over emission of carbon
dioxide (Co2) and deforestation. The effect are clime changed,more heat waves
that increase heat-related illnesses and death, more frequent flooding , long
drought, the coast area more vulnerable to coastal storm,the farmers &
sailor lose their income source, and irretrievably changed in wetlands.
Facing the facts of global warming Countries all over the
world have just begun to acknowledge the negative effects of global warming not
only to the world's politics and economy but also to humankind in general. Many
of the world's governments have encouraged implementation of measures to try to
counteract the problem of global warming through careful measures and practices
designed to protect and respect the environment.
Global warming is the world problem that must be solve. The
solutions of this problems are decrease emissions of carbon dioxide (C02), use
the fuel-efficient vehicles, renewable energy, protecting threateded forest.
Expecially for business and goverment ,they should take the best way to make
them (above) available and affordable, and as consumers must know what to do
and give opinion to make better choices to solve this problem.
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