presentation global warming final draft
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7/31/2019 Presentation Global Warming Final Draft
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How furthering mankind affects theworld around us
By Alex Shear
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The increase in the average temperature ofEarth’s near-surface air and oceans since themid-20th century and its projected continuation
Global surface temperature increasedby 0.74 ± 0.18 °C (1.33 ± 0.32 °F)
Melts polar icecaps
Leads to death of flora and fauna
Causes rise in sea level, inundating some islandnations slowly
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Climate encompasses the statistics oftemperature, humidity, atmospheric pressure,wind, rainfall, atmospheric particle count and
other meteorological elemental measurementsin a given region over a long time.
Weather is the present condition of these sameelements over a shorter period of time.
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GLOBAL WARMING OZONE DEPLETION
Troposphere
Warms Troposphere
H2O, CO2, CH4, etc.
Traps terrestrial thermalinfrared
Less infrared out meansmore heat introposphere
Stratosphere
Cools Stratosphere
CFCs and NitrousOxides
Reduces ozone
Less ozone means moreUV radiation
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Gases in atmosphere that absorbs and emitsradiation within the thermal infrared range
H2O (water)
CO2 (carbon dioxide) CH4 (methane)
NO2 (nitrous oxide)
O3 (ozone)
Since the industrial revolution GHGs in theatmosphere have increased from 280 ppm to390 ppm (71% increase)
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The release of methane gas from arctic tundraand wetlands
Expiration of carbon dioxide by breathing
Regional fluctuations in water vapor (clouds)
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Methane
Landfills
Grazing Livestock
Nitrous Oxide Fertilizers
Carbon Dioxide
Burning of Fossil Fuels Deforestation
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Organic compound that contains carbon,chlorine, and fluorine, produced as a volatilederivative of methane and ethane.
Many CFCs have been widely used asrefrigerants, propellants (in aerosolapplications), and solvents.
More commonly associated with ozonedepletion, but still a factor of global warming
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People of course. Is our impact on the environment selfish,or sadly necessary?
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Currently 7B people worldwide
+2 people/second
+200K people/day
+80M people/year This growth comes with responsibilities to
humanity, as a price
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Food
Energy
Water
Shelter
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The world population is predicted to be 9B by2050
Roughly 3B more people in 40 years
This is greater than the current populations ofEurope, Africa, and both North and South America
Unavoidable
Not case of people having huge families, rather a lot
of people doing what comes natural
Human Reproduction Rate >> FoodProduction Rate
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“The Power of thepopulation isindefinitely greaterthan the power in theearth to producesubsistence for man.”
Exponential vs.
Arithmetic
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Based on NASA International Space Stationdata, man needs 2.5 L daily
Earth is 70% water (salt and fresh), 2.5% fresh
water, of which only 1% is accessible. Most is frozen in the icecaps
Need water for industry and agriculture aswell as consumption
Contributes to global temperature hikes
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Desalination Plants
Good idea in theory but has negative results for theenvironment
Expensive Enormous Energy Dependence (Greater production of
GHGs)
Damaging Byproducts Released into the Sea
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30-40% of land surface is used for agriculture tofeed the populous
Leads to deforestation in some cases, which has a
direct effect on carbon dioxide regulation This is nearly all the usable land
Need to double amount of food in next 40 years
Need to raise productivity because theresimply isn’t enough land to provide even thebasic requirements to the world
4-5K calories or 820 grams of dry foodstuffs
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Use of synthetic fertilizers releases harmfulGHGs into the atmosphere (Nitrogen-Oxidegases)
Industrialization of food production alsoaffects the release of carbon dioxide and usageof fossil fuels
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People require a minimum amount of energy
Fossil Fuels are most used
Oil in particular
85M barrels/day and increasing yearly Provides much needed fertilizers, pesticides
and mechanizations necessary for food
production
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Moral obligation, as most intelligent species toprotect and preserve nature and all life
Self interest, the more we destroy the
environment, the more we threaten our chanceof survival
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Human Impact [I] = Population [P] x Affluence[A] x Technology [T]
P measured with census information
A measured by global GDP rates T measured with world patent office applications
Since 1900 world GDP and the number ofpatent applications have grown even faster
than population More environmental damage in steadily decreasing
time frames
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Stop consuming so many natural resources
Recycle and repopulate
Change our technology
Wind, solar, geothermal and biologic energy sources Clean
Reduce population growth
Hard to do because human morality plays such avital role
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Resources are finite
Even if we cut back on certain destructiveprocesses, population growth will still take
over in the end That is to say that eventually we won’t be able to
sustain ourselves
In an attempt to preserve our wellbeing we
subsequently cause our demise We truly shape the future of the earth
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Asplund, Richard W. Profiting form Clean Energy. Hoboken, John Wiley & Sons, Inc., 2008 Asplund’s book offers insight on alternative fuels and energy sources. It is mainly an investors book,
but it shows what goes into the production of human necessities. The Causes of Global Warming and the Solution. Global Warming and the Solution. 2011. 28 Apr.
2011 http://wwwl.causesofglobalwarming.net/ This site offered a wide range of facts and graphs. It allowed me to gain an initial grasp of global
warming, its causes and its effects on the world Hawking, Stephen. The Universe in a Nutshell. New York: Bantam Books, 2001.
Hawking’s book, though primarily a theoretic al physics work, offers insight on the technological riseof the human race and the resultant effects on the planet “How Many People Can Live on Planet Earth.” BBC Horizon. Narr. David Attenborough. BBC. 2009 A BBC documentary pertaining to the living capacity of the planet, it offers many figures and facts on
the human impact. It was by far the most helpful of my sources. It offers an outlook on the tomorrowof man.
Kolbert, Elizabeth. “Enter the Age of Man.” National Geographic Mar. 2011: 60-85 The article deals with the new geologic epoch known as the Anthropocene which is categorized by the
permanent impact on global climate by man. It shows that even though we may be gone in the futurethe evidence of our existence will remain evident in what was left behind
Kunzig, Robert. “Population 7 Billion.” National Geographic Jan. 2011: 42-69 Part of an article series that addresses the growing population of the world and the stretching of the
constraits of comfortable existence. Offers a look at the coming storm of population threat and harshbut true solutions to the problem
Wikipedia. 2011. 28 Apr. 2011 http://www.wikipedia.org/ Use of this site was for general common knowledge of global warming and graphs