presented by Carbon Dude Carbon Dioxide basis of carbon cycle comprises 0.03% of earth’s...
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Transcript of presented by Carbon Dude Carbon Dioxide basis of carbon cycle comprises 0.03% of earth’s...
presented by Carbon Dude
presented by Carbon Dude
Carbon DioxideCarbon Dioxide
basis of carbon cyclebasis of carbon cyclebasis of carbon cyclebasis of carbon cycle
comprises comprises 0.03%0.03% of earth’s of earth’s atmosphereatmosphere
comprises comprises 0.03%0.03% of earth’s of earth’s atmosphereatmosphere
usually more COusually more CO22 in city air than in city air than country aircountry air
usually more COusually more CO22 in city air than in city air than country aircountry air
product of combustion (oil, product of combustion (oil, gasoline, coal, natural gas, wood) gasoline, coal, natural gas, wood)
and respirationand respiration
product of combustion (oil, product of combustion (oil, gasoline, coal, natural gas, wood) gasoline, coal, natural gas, wood)
and respirationand respiration
climate changeclimate changeclimate changeclimate change
Why should Why should I care about I care about
carbon dioxide?carbon dioxide?
Carbon dioxide is directly related toCarbon dioxide is directly related to
greenhouse gasesgreenhouse gasesgreenhouse gasesgreenhouse gases
global warmingglobal warmingglobal warmingglobal warming
pollutionpollutionpollutionpollution
What are What are greenhouse greenhouse
gases?gases?
transparent gases in the transparent gases in the atmosphere which contribute to atmosphere which contribute to
the greenhouse effect the greenhouse effect
transparent gases in the transparent gases in the atmosphere which contribute to atmosphere which contribute to
the greenhouse effect the greenhouse effect
trap heat near the Earth’s trap heat near the Earth’s surface surface
trap heat near the Earth’s trap heat near the Earth’s surface surface
include COinclude CO22, CH, CH4 4 (methane), (methane), nitrous oxide, nitrous oxide,
chlorofluorocarbons (CFCs), and chlorofluorocarbons (CFCs), and water vapor water vapor
include COinclude CO22, CH, CH4 4 (methane), (methane), nitrous oxide, nitrous oxide,
chlorofluorocarbons (CFCs), and chlorofluorocarbons (CFCs), and water vapor water vapor
can raise the mean global can raise the mean global temperature of the Earth temperature of the Earth
can raise the mean global can raise the mean global temperature of the Earth temperature of the Earth
What are What are chlorofluorocarbons?chlorofluorocarbons?
chemicals that contain the chemicals that contain the elements chlorine, fluorine, and elements chlorine, fluorine, and
carboncarbon
chemicals that contain the chemicals that contain the elements chlorine, fluorine, and elements chlorine, fluorine, and
carboncarbonwere used in refrigerator were used in refrigerator
coolant, manufacture of aerosol coolant, manufacture of aerosol sprays, blowing agents for sprays, blowing agents for
foams and packing materials, foams and packing materials, and as solvents and as solvents
were used in refrigerator were used in refrigerator coolant, manufacture of aerosol coolant, manufacture of aerosol
sprays, blowing agents for sprays, blowing agents for foams and packing materials, foams and packing materials,
and as solvents and as solvents when released, deplete the when released, deplete the
ozone layer of the atmosphere ozone layer of the atmosphere
when released, deplete the when released, deplete the ozone layer of the atmosphere ozone layer of the atmosphere
use should be obsolete in the use should be obsolete in the
next decade next decade use should be obsolete in the use should be obsolete in the
next decade next decade
What is What is ozone?ozone?
Ozone is a substanceOzone is a substancederived from the derived from the element, oxygen.element, oxygen.
O
Ozone (OOzone (O33)-a highly active )-a highly active compound in the atmosphere compound in the atmosphere
which is widely dispersed in a 15 which is widely dispersed in a 15 to 50 km thick layer that to 50 km thick layer that
prevents harmful UV rays from prevents harmful UV rays from reaching the earth.reaching the earth.
Ozone (OOzone (O33)-a highly active )-a highly active compound in the atmosphere compound in the atmosphere
which is widely dispersed in a 15 which is widely dispersed in a 15 to 50 km thick layer that to 50 km thick layer that
prevents harmful UV rays from prevents harmful UV rays from reaching the earth.reaching the earth.
+
+
-
OG
oxygen
88
15.999715.9997
How many electrons?
How many protons?How many neutrons?
8
88
88
atomic numberatomic number
= atomic massatomic mass
-
+ +++
++
-
-
- -
-
-
How many energy levels?
22
# of protons = atomic number+
+++++++
1 2
3 4 5 6 7 8
# of energy levels
Which properties Which properties are used to positionare used to position
oxygen on the oxygen on the periodic table?periodic table?
1
28
O
18 km18 km
ozoneozone
50 km50 km
90 km90 km
TroposphereTroposphere
StratosphereStratosphere
MesosphereMesosphere
Exosphere
Thermosphere / Ionosphere
Exosphere
Thermosphere / Ionosphere
500+ km500+ km
Upper Atmosphere
Upper Atmosphere
What is the What is the greenhouse greenhouse
effect?effect?
CO2CO2
changes in the Earth’s atmosphere changes in the Earth’s atmosphere that may enhance the natural that may enhance the natural
warming process and elevate global warming process and elevate global temperaturetemperature
changes in the Earth’s atmosphere changes in the Earth’s atmosphere that may enhance the natural that may enhance the natural
warming process and elevate global warming process and elevate global temperaturetemperature
CO2CO2 CO2CO2
CO2CO2
CO2CO2
CO2CO2
CO2CO2
CO2CO2
CO2CO2
CO2CO2
CO2CO2
CO2CO2
CO2CO2
CO2CO2
CO2CO2
CO2CO2CO2CO2
CO2CO2
CO2CO2
CO2CO2
CO2CO2CO
2CO
2
CO2CO2
Most outgoing heat energy:
trapped
Most outgoing heat energy:
trapped
CO2CO2CO
2CO
2
Looking at earth from space. (1994). NASA
Bibliography
“Global Carbon Cycles.” (12 April 1999). Available. [Online] http://www.uoregon.edu/~dogsci/dorsey/geo103/lect3.html
Schimel, et al. (1995). Climate Change 1994. CO2 and the carbon cycle. Cambridge University Press: Cambridge, UK.
Kasting, James F. (1995). Consequences. The carbon cycle, climate, and the long-term effects of fossil fuel burning. Available. [Online] http://www.gcrio.org/CONSEQUENCES/vol4no1/carbcycle.html
Elkins, James W.(1999). Chlorofluorocarbons (CFCs). Available [Online http://www.cmdl.noaa.gov/noah/publictn/elkins/efcs.html] National Oceanic and Atmospheric Administration, Climate Monitoring and Diagnostics Laboratory
Modified from 2004 Plano ISD