1. Human Impacts on the Environment

2. Air Pollution
Suspended Particles – made up of soot, smoke, dust and liquid droplets.
Nitrogen Dioxide – caused by fuel combustion, aerobic decomposition and nitrogenous fertilizers.
Sulfur Dioxide – combustion of fossil fuels, with motor vehicles and small and varied sources (such as boilers and stoves) contributing the most.

3. Air Pollution

4. Acid Rain
Streams and lakes becoming more acidic, killing fish, frogs and other life.
Damage to forests, plants and buildings

6. Deforestation Definition: large areas of land are logged Flooding
Landslides and mudslides
Habitat destruction
Trees are an important part of the water cycle
Forests are home to many animals
Global warming

7. Amazon Deforestation

9. Global Warming
Burning fossil fuels (gasoline, coal & oil) and other pollution increases the amount of CO2 in the air ~this increases the earth’s temperature.

10. Carbon Dioxide is also known as a Greenhouse gas   
Greenhouse gasses prevent infrared or solar radiation from escaping back into outer space-causing the planet to slowly warm.  

11. The Greenhouse Effect The burning of fossil fuels
CO2 in the atmosphere.
Increases in CO2 traps heat in the atmosphere.
As a result, global temperatures are rising.
Warmer temperatures raise sea levels

12. Consequences of Global Warming
Rising sea levels coastal flooding
Changing rain patterns
Droughts and crop failures
Increase in insect diseases
Changing habitat

13. Ozone Depletion
Use of CFC’s or chlorofluorocarbons lowers ozone by breaking up O3
CFC’s are used in some aerosol cans (not as much any more)
They are also released from some refrigerators and air conditioning systems.
Consequences: skin cancer, cataracts.

14. Mining

16. Mining

17. Oil Drilling

18. Plastic Contamination

19. Water Pollution

21. Renewable Resources
These are resources that can regenerate or replace themselves.

22. Non-renewable Resources
A resource that can NOT be replaced or replenished by natural processes
Fossil Fuels

24. Geothermal wells

25. *pros* for geothermal energy:
Heat from the earth= limitless supply.
Domestic source of energy.
It has the smallest land footprint of any other power source.
It doesn’t require fuel to operate.
New technologies are making geothermal energy available in more places.

26. *cons* when it comes to geothermal
High costs to construct plants.
Sites must be located in prime areas.
The introduction of water is wasteful
Emissions of sulfur dioxide and silica are often an issue.
Drilling into heated rock is problematic.

27. Here are some of the *pros* for wind energy:
Clean and renewable.
Domestic source of energy.
Turbines only require periodic maintenance.
Accessible and affordable for homeowners and businesses
Space-efficient. Farmers can rent their property and still continue to farm the land.

28. There also some *cons* when it comes to wind energy:
Wind is a fluctuates
Electricity energy must be stored (batteries).
Turbines are a potential threat to birds & bats.
Deforestation to set up a wind farm.
Noise complaints with farms that are close to communities.

29. It’s pretty easy to see the *pros* when it comes to hydropower:
It only requires moving water in order to work
It is a domestic source of energy/Green /and renewable
Most affordable when spread out over the lifetime costs.
It is reliable.
It is safe! Compared with the use of fossil fuels and nuclear energy

30. There also some *cons* when it comes to hydropower:
Availability of places where these power plants can be built.
Along with other Resources the initial expense is lofty.
Lack of water.

31. There are*Pros* when it comes to solar:
Renewable
Reduces Electricity Bills. ...
Low Maintenance Costs. ...

32. There also some *cons* when it comes to solar power:
Cost. ...
Weather Dependent. ...
Initial Investment of Solar Energy Storage Is Expensive.

34. What can you do? Hang clothes on clothesline
Recycle EVERYTHING especially plastic!
Wear my jeans one more day before washing
Ride bike to beach
Donate to your cause
Pick up trash you see
Turn off a light
Unplug stuff you don’t need
Bring your own straw fork cup
Wash dog on grass/car on lawn

35. Get Creative