Air pollution has caused climate change worldwide. Volcanoes are sources of natural pollution, but burning fossil fuels has created a much worse problem.

1. Air Pollution and Global Change
By Kella Randolph M. Ed.
https://upload.wikimedia.org/wikipedia/commons/a/a4/Beijing_smog_comparison_August_2005.png

2. Air Pollution and Global Change
▪ Greenhouse gas
▪ Heat flow
▪ Global warming
▪ Greenhouse effect

3. Greenhouse gas
▪ Examples of greenhouse gases include water vapor, carbon dioxide,
methane, nitrous oxide, chlorofluorocarbons (CFCs), and hydro
chlorofluorocarbons (HCFCs).
▪ Image:http://www.mrgscience.com/uploads/2/0/7/9/20796234/sources-of-air-pollution-310314_orig.png
– a gas in Earth’s atmosphere that
absorbs and then re-radiates heat.

4. What Is Global
Warming?
Global warming is when the earth
heats up and the temperature
increases
More recently, the temperatures
have been rising, causing more
dangers for people, animals, plants
and our environment
Image: https://www.tuttogreen.it/wp-
content/gallery/ghiacciai-in-ritirata/oh-no-global-
warming.jpg

5. http://1.bp.blogspot.com/jZnudLCgIRk/VWXhkmn3qeI/AAAAAAAAB6w/24Jkc_3OWvs/s1600/cl_t
he_greenhouse_effect_image_800x600.jpg

6. Particulates
Very small pieces of fuels, and
gasses are going into the air that
we breathe. Factories, smelters,
and power companies pollute the
air. Power plants and factories
account for more than a quarter of
fossil fuel use. Power plants burn
fossil fuels to generate electricity.
Factories burn fossil fuels to power
machines.
Image:
https://upload.wikimedia.org/wikipedia/commons/2
/2f/Smokestacks_3958.jpg

7. Homes and other
buildings also
burn fossil fuels.
They use fossil fuels for heating,
cooking, and other purposes.
This Photo https://activerain-store.s3.amazonaws.com/image_store/uploads/5/2/8/4/1/ar125709073314825.jpgThis Photo
https://farm1.staticflickr.com/119/306644436_e1689d91bb_z.jpg?zz=1
Fireplace with gas logs

8. Who is responsible?
Power companies
https://c1.staticflickr.com/3/2561/3844250043_eec74579f7_b.jpg
Factories
This Photo http://edgeeffects.net/wp-
content/uploads/2019/01/Exxon_Mobil_oil_refinery_Cancer_Alley-e1548010572907.jpg

9. Volatile organic compounds
Volatile organic compounds, orVOCs, enter the air by
evaporation.VOCs are found in many products,
including paints and petroleum products.
TheVOC called methane evaporates into
the air from livestock waste and landfills.
This Photo
https://upload.wikimedia.org/wikipedia/commons/0/05/Organic_
pig_farming_-_geograph.org.uk_-_206737.jpg
This Photo
https://upload.wikimedia.org/wikipedia/commons/thumb/b/bd/EWM_paint_2007.jpg/1200px
-EWM_paint_2007.jpg

10. This Photo by
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om/2011/12/1.gif

11. This Photo
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nCC87wlsk/s1600/Aerosol.png
https://piedtype.files.wordpress.com/2013/11/cfcs.jpg

12. http://i.imgur.com/yj0DOAB.jpg

13. This Photo http://3.bp.blogspot.com/-6WDHadj-U8k/T0q-Dddt1KI/AAAAAAAAA4A/nddS7yXPpqo/s1600/indoorar.gif
Primary Sources of Indoor Air Pollution

14. This Photo https://enzapatillasdeandarporcasa.files.wordpress.com/2015/08/incendio.jpg
Some air pollution happens because of wildfires and
some is caused by humans.
This Photo https://communitymedicine4asses.files.wordpress.com/2018/05/air-
pollution-infographics-english-4-1200px.jpg?w=625

15. Ground level
ozone formation
Sunlight “bakes” pollutants in the
air. Heat causes chemical reactions
and produces ozone.
https://www.qld.gov.au/__data/assets/image/0024/67821/ozone-formation-large.jpg

16. Smog
Most pollutants enter the
atmosphere when fossil fuels burn.
Gasoline is a fossil fuel.
Smoke and fog combine to make
smog. This not only makes it hard
to see the road, but it makes
breathing difficult. Smog
sometimes triggers asthma
attacks.
Image:
http://static2.architectforum.hu/files2012/n00/0
2/11/21/body/f1bkw7-01-kep.jpg

17. News from Hawaii shows
how air quality even from
natural events can result
in problems for humans.
NBC News Channel Smoke from
Hawaii's Puna lava flow is making
life difficult for some residents
living nearby. KHNL's Mileka
Lincoln reports. Published
November 17th 2014, 1:33
pmhttp://www.nbcnews.com/news/
us-news/lava-flow-impacting-air-
quality-residents-n250181

18. Greenhouse Gas
A gas which traps the sun's
heat:
Water vapor (H 2 O)
Carbon dioxide (CO 2 ) -
exhaust from cars and power
plants.
Methane (CH 4 ) - from
decomposing organic matter

19. Natural Sources
of pollution
– Forest Decay CO2
–Volcanoes – SO4 – Nitrogen
Decay NO4 – Methane Decay CH4
• Note – Natural Sources more than
double human sources
Image:
https://intlpollution.commons.gc.cuny.edu/files/2014/1
2/15028836_l-1038x576.jpg

20. Air Pollution
Comes from many
sources
Image:
https://upload.wikimedia.org/wikipedia/commons/t
humb/9/91/Atmosphere_composition_diagram.jpg/
537px-Atmosphere_composition_diagram.jpg

21. Different types
of air pollution
https://goo.gl/images/MSe7MP

22. This Photo https://communitymedicine4asses.files.wordpress.com/2018/05/air-pollution-infographics-english-4-1200px.jpg?w=625

23. Natural Sources
of pollution
– Forest Decay CO2 –Volcanoes –
SO4 – Nitrogen Decay NO4 –
Methane Decay CH4 • Note –
Natural Sources more than double
human sources.
The earth’s system of create, grow,
decay, and repeat is all natural and
a certain amount of pollution must
occur during natural processes.
Without human intervention, the
earth can withstand that level of
pollution. Problems come when
humans add our contribution to the
pollution.
This Photo by
https://upload.wikimedia.org/wikipedia/commons/f/fe/Schwarzbach_pond_and_peat_bog_(Kuchelscheid%2C_Belgium)_(7244879924).jpg

24. Forest fires
Smoke and particulates from
burning forests put millions of
tons of pollution into the air.
Picture from Creative Commons ClipArt/Bing
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tbn0.gstatic.com/images?q=tbn:ANd9GcSu2IxjEEiTxxNL
4J0bzFmiNoQoAXUCOfYmgiwjgkNOBm9jmiT2Sg

26. Asthma
Asthma is a condition in which your
airways swell and produce extra
mucus.
This can make breathing difficult
and can trigger coughing,
wheezing, and shortness of breath.
Image:
https://upload.wikimedia.org/wikipedia/commons/b
/b4/Asthma-
_Mild_and_Chronic_%285081431722%29.jpg

27. ▪ Picture from Creative Commons ClipArt/Bing and National Geographic

28. Global warming
• a gradual increase in air
temperatures near Earth’s surface.
▪ o The possible consequences of global warming are
uncertain but may be severe.They include melting of
polar ice caps, rising sea levels, drought, and an increase
in the frequency and severity of storms. Picture from Creative
Commons ClipArt/Bing

29. Greenhouse
effect
▪ o The greenhouse effect gets its name from the fact that the air inside a greenhouse will
often be warmer than the outside air. The glass in a greenhouse is transparent to sunlight, but traps
the heated air inside.
▪ Aura's measurements will provide accurate data for predictive models and provide useful information
for local and national agency decision support systems.
Above : The Ozone Monitoring Instrument (OMI), measures the air pollutant nitrogen dioxide (NO2) from high
above Earth's surface. NO2 is released into the air by burning coal, gasoline, and biofuels, such as wood. Maps
show annual mean observations of NO2 in 2005 and 2010. Notice the large increase in NO2 in China because
of its rapidly growing economy. At the same time, there was a large decrease in the United States by 2010 due
to federal and state regulations of NOx (NOx = NO + NO2) emissions from power plants and cars. NOx
emissions are regulated because it is unhealthy to breathe and reacts with other gases to produce ozone,
which is also unhealthy to breathe.
htps://goo.gl/images/NkrndD Copy and paste this link to see NASA’s interactive version of this map.
atmospheric heating caused by
certain gases in Earth’s atmosphere
that are transparent to sunlight but
absorb and reflect heat that comes
from Earth’s surface.