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Transcript of Global warming
GLOBAL WARMING
By Sana Samad
What would happen if you woke up one day and suddenly
found yourself in chaotic world where there is catastrophe
everywhere? Global warming is a worldwide phenomenon that is
affecting our earth in a very dramatic way. However, there are
scientists who disagree with this fact and say that it’s not global
warming affecting our earth, it’s the opposite, it’s global cooling.
How strange is that? This has created a dilemma as to what people
should believe. Conversely, global warming has solid evidence to
support it. Some of the very obvious reasons are the increase of the
earth’s temperature due to human activity, the retreating of the
glaciers and lastly the fact that the past decade has been recorded
as the hottest one so far. So, this shows that global cooling is not
legitimate.
Studies show that our earth is heating up because of the
greenhouse gases that get trapped in our atmosphere. The average
global surface temperature has increased by 1.4 degrees
Fahrenheit. This is because of our atmosphere is reflecting back the
incoming radiation of the sun. Earth partly heats up because of the
burning of fossil fuels. Currently, about 80% of our energy comes
from fossil fuels. This means that since we are using so much fossil
fuels, we are burning them a lot, causing them to emit carbon
dioxide in the environment. This ultimately results in the creation of
the greenhouse gases. Statistics show that uncontrolled burning of
fossil fuels will result in the melting of polar ice-caps, rising of sea
levels and inundating coastal communities. According to the
Institute of Oceanography, carbon emissions as a total have been
increasing since 1960. It has increased from 320ppm (parts per
million) in 1960 to 400ppm in 2010. These significant numbers
evidently justify that global warming is serious, because our earth
heats up with gases, its causing problem at the poles which results
in melting of the ice in an disproportionate manner.
Evidence shows a global decline of snow and ice. In particular,
starting from 1980 and the past decade the ice has started showing
signs of melting. Snow is retreating in the early spring. Ice in the
Arctic is shrinks all seasons especially during the summer season.
And because of this melting, it has caused a rise in the sea level in
various regions around the globe causing floods. Over the past
years, Arctic sea-ice extent has decreased about 5%. This may
seem a small number but imagine the same happening every year.
And statistics also show that since 1966 the ice in the Northern
Hemisphere has decreased by 2%. The rise in the earth’s surface
temperature has caused the melting of the snow around the globe.
This effect has caused huge problems around the earth because as
the earth heats up, the glaciers start to melt and flow into the sea,
increasing the sea level and causing floods in low-lying land areas.
In other words, how can global cooling be taken seriously if there
are so devastating results of global warming?
Global warming has gained more attention worldwide than
global cooling because it’s just not the evidence, it’s the fact that
people are observing the climate around themselves. An analysis of
the global temperatures by statisticians shows that the earth is still
warming and not cooling. The statisticians researched the
temperatures of the past years and found no trend of falling
temperatures. This means that global cooling is nowhere close to
being serious, because no effects have come into notice. Secondly,
the past 10 years have been recorded, as the hottest decade of the
planet, so linking this to global cooling would be absurd. The reason
why people might have thoughts or confusions about global cooling
is because of the earth cooling down in different regions, but this is
not because sunspot activity, on the contrary it is actually because
of the La Nina effect. Which is when the earth’s surface temperature
cools down. And because of the La Nina, it has caused some
fluctuations in the rising temperatures that have caused people to
re-think about what they believe. But even though La Nina had
occurred, the past years were still extremely warm. Over the past
years, sea levels have been rising at an average of 1 -2 millimeters
and this is because when the ice melts they flow into the sea
causing them to overflow. Glaciers in South America’s Andes are
melting so fast that if the current rate continues, they could
disappear entirely by 2020. Clearly, this proves that global warming
is serious and has reliable evidence to support it.
In conclusion, I would say that before believing in something,
you need to weigh the evidence, and see if it is reliable. It’s global
warming effecting our earth warming because people won’t make
this a big issue for no reason, it has got to have some strong
evidence to back-it up, which it does have. On the other hand,
global cooling has facts that are merely there for causing confusion
and dilemmas in people’s minds as a lot of money is involved in
these issues. Ice and snow around the globe is melting. It’s getting
warmer and warmer as everyday passes. There are catastrophic
disasters everywhere because of the change of seasons and
increase in the water-level. So how can we put these facts aside and
believe in something that is completely superficial? Global warming
is a very serious issue, and if not acted upon now, is going to
drastically destroy our earth for our future generations. And by the
time we even realize the chaos in the world, it will be too late to do
anything.
BIBLIOGRAPHY:
Unknown, Author. Is the amount of snow and ice on the earth decreasing. Oceanservice.noaa.gov. http://oceanservice.noaa.gov/education/pd/climate/factsheets/isamount.pdf Accessed December 20th 2010
Nelson, Dennis. Global Warming and Glaciers. Waterencyclopedia.com. http://www.waterencyclopedia.com/Ge-Hy/Global-Warming-and-Glaciers.html#ixzz18HaMUNMU Accessed December 20th 2010
Vardiman, Larry. Evidence for global warming. Icr.org. http://www.icr.org/article/evidence-for-global-warming/ Accessed December 20th 2010
Unknown, Author. Global Warming. Wikipedia.org http://en.wikipedia.org/wiki/Global_warming#cite_note-Changnon2000-23 Accessed December 20th 2010
Esch, Mary. Summer 2010 Hottest on record, new data suggest. Huffingtonpost.com. http://www.huffingtonpost.com/2010/08/29/summer-2010-hottest-on-record-new-data_n_698322.html Accessed December 20th 2010
Unknown, Author. Global Warming. Ucausa.org. http://www.ucsusa.org/global_warming/science_and_impacts/science/global-warming-human.html Accessed December 20th 2010
Mathias, Kevin. Global Warming and Melting Glaciers. Buzzle.com http://www.buzzle.com/articles/global-warming-and-melting-glaciers.html Accessed December 20th 2010
Borenstein, Seth. Statisticians reject global cooling. Msnbc.msn.com http://www.msnbc.msn.com/id/33482750/ns/us_news-environment/ Accessed December 20th 2010