DEFORESTATION AND URBANIZATION

1. Deforestation

2. Urbanization

3. Selective Cutting

4. Clear Cutting

5. Traditional farming

6. Sustainable farming

7. Fossil Fuels

8. Hydrofracking

9. Renewable Resources

10.Non-Renewable Resources

11.Wind Power

12.Solar Energy

13.Biofuels/Biomass

14.Geothermal Energy

15.Hydroelectric Energy

16.Sustainability

STARTER: UNIT TITLE PAGE 115 ENVIRONMENTAL GEOLOGY

AGRICULTURE

• Agriculture-The cultivation of other life forms for food purposes

• Land must be cleared for agriculture makes area less diverse

• Monoculture-Only one species is present• Easier for farmers to maintain• Less cost efficient

AGRICULTURE

• Pesticides-Chemicals designed to protect crops from parasites• Pesticides can runoff into streams or seep into the

groundwater• Pesticides can harm organisms Offset food chains

AGRICULTURE• Irrigation-Process where farmers supply water to dry land in

order to help the growing of crops

• Helps saturate very dry land

• Prevents farmers from having to rely on rainfall

• Problems with irrigation:

• Groundwater runs out (Aquifer depletion)

• Ground sinks due to depleted groundwater (San Joaquin Valley)

• Over irrigation may cause water to mix with pesticides and cause water pollution

AGRICULTURE

DEFORESTATION

• Deforestation-Process where trees are removed and not replanted• Done in order to clear area for

construction• Trees are also used for products such

as paper, firewood

DEFORESTATION

• As trees are removed the topsoil is weakened

• This causes an increase in erosion due to soil not being held in place

• If more trees are cut down then carbon dioxide will increase and oxygen levels will decrease

• Photosynthesis will stop

• If trees are burned that also releases carbon dioxide Could lead to global warming

DEFORESTATION

URBANIZATION

• the growth of cities as more people move from rural areas to urban areas

• 70% of people in North America live in a city• By 2025-5 Billion people will live in cities

URBANIZATION • Effects of Urbanization on the environment

• Destroys ecosystems – Forests are cleared and wetlands are filled

• Increased erosion

• More factories More emissions More greenhouse gases

SOLUTIONS

• Barriers around construction sites to catch eroded sediment

• Keep sediment from polluting streams

• Modern landfills minimize leakage. Ventilation at landfills cipher out toxic gases

• Mountaintop removal mining-Destructive form of surface mining that blasts away the tops of mountains to acquire resources

• Done in the Appalachian Mountains

• Massive transport trucks

• Burning coal for power releases pollutants

MOUNTAINSIDES

DEFORESTATION IN MADAGASCAR• https://www.youtube.com/watch?v=irmv-G1bO3g