1. Pollution and recycling Pollution and recycling

2. Pollution types Natural: volcanic eruptions – dust, toxic gases, ash released Natural: volcanic eruptions – dust, toxic gases, ash released Manmade: waste from manufacturing, burning fuels, garbage Manmade: waste from manufacturing, burning fuels, garbage Mt. Etna Sicily Coal power plant

3. Air pollution CH 4 + 2O 2 CO 2 + H 2 O CH 4 + 2O 2 CO 2 + H 2 O Combustion releases CO 2 Combustion releases CO 2 21 billion tons a year 21 billion tons a year = 4.2 X 10 13 pounds = 4.2 X 10 13 pounds Effect: world’s temperature is rising Effect: world’s temperature is rising

4. Other air pollutants NO X compounds + sunlight creates smog NO X compounds + sunlight creates smog Ground-level ozone makes asthma worse Ground-level ozone makes asthma worse Sulfur compounds make rain pH 4-5 Sulfur compounds make rain pH 4-5 Smog damages plants, crops Smog damages plants, crops Smog masks in Kuala Lumpur, Malaysia

5. Water pollution Causes: Causes: 1. Industrial waste 2. Fertilizers 3. Landfills and sewage 4. Industrial accidents Great Pacific garbage patch

6. fertilizers get into waterways get into waterways cause algae blooms cause algae blooms kills fish kills fish Pesticides also enter the water cycle from agriculture Pesticides also enter the water cycle from agriculture Clear Lake, CA

7. Land contaminants Lead – from fuels before 1970 Lead – from fuels before 1970 Dioxin (used in making paper) causes cancer Dioxin (used in making paper) causes cancer Each person in the US throws away 1000 lbs of garbage a year Each person in the US throws away 1000 lbs of garbage a year Landfills pollute ground water Landfills pollute ground water

8. Reducing pollution Cleaner, efficient cars or carpooling, mass transit Cleaner, efficient cars or carpooling, mass transit Less energy use: turning off lights, electronics Less energy use: turning off lights, electronics Re-useable bags for groceries Re-useable bags for groceries Proper disposal of Proper disposal of e-waste, toxics

9. Recycling: the final way to prevent pollution Yard waste into mulch Yard waste into mulch Table scraps into compost Table scraps into compost Plastic bottles become clothing Plastic bottles become clothing Paper recycling could eliminate 41% of landfill space Paper recycling could eliminate 41% of landfill space Metal recycling reduces mining, habitat destruction Metal recycling reduces mining, habitat destruction Petaluma methane gas to electricity plant at Landfill site

10. Chose the world you want to live in Linfan, China San Francisco, CA