The Role of Forests
in Cleaning the Air
What’s wrong with the air, anyway?
Carbon emissions!!!
• CO2 = major greenhouse gas
• Causes global warming: traps heat
• ...
How do trees help?
1) Photosynthesis:
*Absorb CO2
*Separate carbon from oxygen
*Store carbon in roots and wood
(“carbon si...
Did you know???
One large tree can provide enough oxygen
for 4 people for a whole day!
Did you know???
You need about 500 full-sized trees to
absorb the carbon dioxide produced by
a typical car driven 20,000 k...
Did you know???
• In one year, an acre (0.405 hectare) of
trees can absorb as much carbon as is
produced by a car driven u...
Did you know???
The death of one
70-year old tree
would return over
three tons of carbon
to the atmosphere!
To put this in...
How do trees help?
2) Lowering our energy needs
*Trees planted near buildings
provide shade and break the
cold wind
*We us...
How do trees help?
3) Filter the air from:
Carbon monoxide, lead, nitrogen dioxide,
ozone, particulate matter and sulfur
d...
How do trees help?
By removing these chemicals, trees reduce:
*headaches
*lung, throat and eye irritation
*respiratory dis...
We are losing our trees!
Approximately every 3 seconds we lose a
whole hectare of forest!
A hectare is bigger than a footb...
Forest Management vs.
Deforestation
Forest Management:
Cutting the trees, using them to make
products and then re-planting...
Forest Management vs.
Deforestation
Deforestation:
Cutting the trees without re-planting.
Example: building a mall or a pa...
What can we do to help?
YOU are helping right now by participating
in tree-planting projects like the Clean Air
Tree Kits ...
Quiz time!
How big is YOUR
carbon footprint?
Let’s find out…
http://www.zerofootprintkids.com/kids_home.aspx
Picture References:
http://anhglobal.ning.com/group/thehealingforestfoundation
http://republicans.energycommerce.house.gov...
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Role of Trees in Cleaning the Air

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Role of Trees in Cleaning the Air

  1. 1. The Role of Forests in Cleaning the Air
  2. 2. What’s wrong with the air, anyway? Carbon emissions!!! • CO2 = major greenhouse gas • Causes global warming: traps heat • Comes from burning fossil fuels • Mostly by cars and energy plants
  3. 3. How do trees help? 1) Photosynthesis: *Absorb CO2 *Separate carbon from oxygen *Store carbon in roots and wood (“carbon sinks”) *Release oxygen for us to breathe!
  4. 4. Did you know??? One large tree can provide enough oxygen for 4 people for a whole day!
  5. 5. Did you know??? You need about 500 full-sized trees to absorb the carbon dioxide produced by a typical car driven 20,000 km/year ! Since young trees absorb more carbon than old ones, planting new trees is a great way to help reduce the carbon in the atmosphere!
  6. 6. Did you know??? • In one year, an acre (0.405 hectare) of trees can absorb as much carbon as is produced by a car driven up to 14,000km! • That would be like driving to Mexico and back twice!
  7. 7. Did you know??? The death of one 70-year old tree would return over three tons of carbon to the atmosphere! To put this in perspective…a car only weighs 2 tons!
  8. 8. How do trees help? 2) Lowering our energy needs *Trees planted near buildings provide shade and break the cold wind *We use less air conditioning and heating (30% less!) *Power plants release less CO2!
  9. 9. How do trees help? 3) Filter the air from: Carbon monoxide, lead, nitrogen dioxide, ozone, particulate matter and sulfur dioxide A healthy tree can reduce dust particles in the air by as much as 7,000 particles per litre of air!
  10. 10. How do trees help? By removing these chemicals, trees reduce: *headaches *lung, throat and eye irritation *respiratory disease *heart disease *cancer
  11. 11. We are losing our trees! Approximately every 3 seconds we lose a whole hectare of forest! A hectare is bigger than a football field!
  12. 12. Forest Management vs. Deforestation Forest Management: Cutting the trees, using them to make products and then re-planting the trees…
  13. 13. Forest Management vs. Deforestation Deforestation: Cutting the trees without re-planting. Example: building a mall or a parking lot.
  14. 14. What can we do to help? YOU are helping right now by participating in tree-planting projects like the Clean Air Tree Kits project!
  15. 15. Quiz time! How big is YOUR carbon footprint? Let’s find out… http://www.zerofootprintkids.com/kids_home.aspx
  16. 16. Picture References: http://anhglobal.ning.com/group/thehealingforestfoundation http://republicans.energycommerce.house.gov/News/PRArticle.aspx?NewsID=6636 http://www.trucktrend.com/features/news/2008/163_news080619_gm_halting_big_suv_redesigns/photo_01.html http://www.euronuclear.org/e-news/images/springfield-npp.jpg http://www.wilson.wnyric.org/david/index.php?option=com_content&view=category&id=68&Itemid=120 http://www.townhouse.webtech.info/ http://www.elmcare.com/trees/how_trees_breathe.htm http://www.designboom.com/contest/files/copy_1214_1.jpg http://www.takeprideinutah.org/wp-content/uploads/2009/04/trees.jpg http://www.greece-map.net/north-america/north-america-map.gif http://www1.na.infn.it/~paolillo/FarWest/IMG_0652.html http://www.on.ec.gc.ca/pollution/ecnpd/results-x_e.html http://www.next100.com/2009/05/give-me-shade.php http://products.howstuffworks.com/friedrich-air-conditioner-rs12l10-review.htm http://cdn.sheknows.com/articles/smog.jpg http://www.onebighealthnut.com/page/2/ http://www.theucbinstituteofallergy.com/Images/LeftImage2_tcm114-10095.jpg http://cutestangel.files.wordpress.com/2009/11/sore-throat1.jpg http://upload.wikimedia.org/wikipedia/commons/d/dd/Olympic_stadium_football_field.JPG http://www-math.cudenver.edu/~wcherowi/clock.gif http://myfactoryrep.com/infosheets/wave-feeder.aspx http://www.zoobreviven.org/images/tree_planting.JPG http://www.actforclimatejustice.org/wp-content/uploads/2009/09/deforestation-tree-removal1.jpg http://www.accessniagara.com/blog/wp-content/uploads/20070623_empty_lot_parking_lot.jpg http://world-is-natural.org/page11/files/trees_give_oxygen_poster.gif http://www.treehugger.com/clean-air-tree-kit-canadian-edition.jpeg http://muttondressedaslamb.files.wordpress.com/2009/12/carbon-footprint.jpg http://www.desktoprating.com/wallpapers/fog-forest-wallpaper.htm

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