1. Human Effects on the Environment

2. Layers of the Earth:
Atmosphere: Air and layer of gasses that surrounds the Earth.
Biosphere: The living things on Earth (people, plants, animals)
Hydrosphere: All the water on Earth (oceans, lakes, rivers, clouds, and frozen water)
Lithosphere: Land and Soil

3. Negative Effects on the Atmosphere
Deforestation – less Carbon Dioxide being converted to Oxygen.

4. Negative Effects on the Atmosphere
Global Warming – less Oxygen in air due to more emissions of CO2 by pollution. Deforestation and natural causes also add to the problem. This causes more warmth from the sun to be caught in our atmosphere, making the Earth’s temp. rise

5. Negative Effects on the Atmosphere
Air Pollution from Cars, Factories, Etc. (anything that burns fossil fuels)

6. Positive Effects on the Atmosphere
Many laws regulate how much factories and cars can emit, how many trees can be cut down and how, etc…

7. Positive Effects on the Atmosphere
REDUCE
REUSE
RECYCLE
HINT !!!
Can you think of an example that would have a positive impact on the environment???

8. Positive Effects on the Atmosphere
New Technologies - machines and cars that pollute less, and use alternate energy, have less negative effects on the atmosphere.

9. Negative Effects on the Biosphere
Deforestation – reduction of plant life, animal life, and medicine possibilities

10. Negative Effects on the Biosphere
Poaching / Over hunting and Over fishing – leads to endangered plants and animals or extinction

11. Negative Effects on the Biosphere
Humans are affected by all types of pollution (air, water, soil). Can cause sickness, shorter lifespan

12. Negative Effects on the Biosphere
Creating farmland – destroys grasslands, marshes, and other natural environments
Insecticides and Fertilizers can wash off into the water and affect animals; if foods are not washed they can contain chemicals that hurt humans that consume them.

13. Negative Effects on the Biosphere
Littering – can affect plant and animal life (kill them)

14. Negative Effects on the Biosphere
Global Warming – heating of the Earths temp. creates many problems for the animals and plants that need certain temperatures. (For example: melting ice caps hurts polar bears)

15. Positive Effects on the Biosphere
Reforestation – planting trees

16. Positive Effects on the Biosphere
Laws for protection of plants and animals – protect endangered species

17. Positive Effects on the Biosphere
Use the Native peoples knowledge of medicines from plants and their healing techniques

18. Positive Effects on the Biosphere
REDUCE
REUSE
RECYCLE

19. Positive Effects on the Biosphere
New technologies – allow for less effects on plant, animal, and humans
Natural Pesticides

20. Negative Effects on the Lithosphere
Pesticides / Fertilizers seep into the soil

21. Negative Effects on the Lithosphere
Overuse of land farming same land over and over again sucks nutrients out of soil

22. Negative Effects on the Lithosphere
Erosion – caused by deforestation or clearing of lands

23. Negative Effects on the Lithosphere
Mining – extracting of minerals or fossil fuels causes huge changes to the soil make-up, and ruin landscape

24. Negative Effects on the Lithosphere
Creating Farmland – clears the
natural land and effects the soil

25. Positive Effects on the Lithosphere
Crop rotation- growing different crops every few years helps to keep the soil from loosing certain nutrients.

26. Positive Effects on the Lithosphere
Laws regulate: where mining can take place and how it can be done, and they regulate the use of chemicals on farms

27. Positive Effects on the Lithosphere
REDUCE
REUSE
RECYCLE

28. Positive Effects on the Lithosphere
New technologies – like new methods of farming, bug protection, etc allow for less effects on soil.

29. Negative Effects on the Hydrosphere
Pesticides and Fertilizers run off from farms and golf courses into water – poisons water supplies

30. Negative Effects on the Hydrosphere
Water pollution – drainage from sewers or factories
boats
oil spills

31. Negative Effects on the Hydrosphere
Acid Rain – air pollution gets trapped in clouds and falls back to the earth in the rain

32. Negative Effects on the Hydrosphere
Dams – cause flooding (animal and plant life can suffer)

33. Negative Effects on the Hydrosphere
Global Warming – resulting in melting of the icecaps, causing the ocean levels to rise (flooding coastal cities)

34. Positive Effects on the Hydrosphere
Wetland laws – Must create more wetlands if you destroy existing wetlands

35. Positive Effects on the Hydrosphere
Laws for waste removal, shipbuilding, farming, etc. that help to control pollution in the water.

36. Positive Effects on the Hydrosphere
REDUCE
REUSE
RECYCLE

37. Positive Effects on the Hydrosphere
New technologies – double hulled boats stop oil spills