Global Warming:
Fact or Fiction?
Presented By:
Kenyatta Esters
Rhonda Nichols
What is Global Warming?
 Refers to a general warming trend of the
earth
 Possible causes:
– Tectonic
– Astronomical
– Green house gasses
– Other Atmospheric conditions
Earths Temperature Fluctuation


1880-2000
1950-2000
Green House Gasses
Carbon Dioxide
50%
Methane
18%
27x CO2
Nitrous Oxide
6%
150xCO2
Synthetic Gasses (CFC’s) and
other
26%
6% CFC10,000x CO2
CFC substitutes 300-5,000xCO2
“Careful measurements have confirmed
that CO2 is increasing in the atmosphere
and that human activities are the primary
cause…
… 31% increases can not be explained by
natural causes. CO2 concentrations are
now likely higher than any seen in the in at
least 420,000”
EPA Website
Green House Gas
Impacts
 Flooding of Coastal
Areas
 Salt Water
Encroachment
Impacts
 Flooding of Coastal Areas
– Major cities
 New OrleansNew Atlantis, Miami, Bancock,
Netherlands
– Marsh
 Everglades disappearance
 Salt Water Encroachment
Calculate the effect of melting
glaciers on sea level
 Total Surface Area of Earth
– 197,000 sq miles
 70% ocean 138,000 sq miles
 30% land59,000 sq miles
 326 million miles3 total water
– Oceans 317 million
– Glaciers 7 million
 Water volume increase
 2 million km29 million
Is Global Warming Real???
Is it a DIRECT consequence of fossil
fuel use?
Do we have an ethical obligation to
reduce CO2 emissions?
Little things mean a lot







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Drive less/fly less
Heat less
Renewable Energies
Buy locally produced fuels
Recycle
Energy efficient transportation and buildings
Educate others
Encourage protection of natural resources
Question Everything
– Political/Corporate/Academic/Environmental Stances
What do YOU think
?