Geography Complete Unit 2 A WASTEFUL WORLD

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Geography Revision 

Need to know for the exam:

ï  Types of waste

ï  Renewable/Non-renewable energy

ï  Energy surplus/deficit

ï  Management of waste

ï  Local/National/International waste

ï  Carbon footprints

ï  HICs vs. LICs

ï  Germany Case Study

ï  Camden Local Recycling Case Study

1) Types of Waste

 

Waste:

Is any substance or object that the holder discards, intends to discard or is required to discard. There are many types of waste, including:

ï  Industrial: Waste from companies/factories

ï  Solid: Not liquid! Could be, wood, metal etc

ï  Non hazardous: Does not pose a threat, eg clothes, paper

ï  Domestic: Waste from households, eg kitchen waste, recyclables

ï  Liquid: Not solid! Could be, chemicals, dirty water

ï  Hazardous: Poses a threat to humans/environment, eg car batteries, industrial waste

ï  E-Waste: Electronic waste, broken electrical devices eg, computers

ï  Municipal: Household waste

ï  Nuclear: From power plants

Main producers of hazardous waste are North America, South America and Asia. The bigger the country, the more hazardous waste.

 

Consumer Societies:

Are societies that buy more items than others and replaces them more frequently. This results in disposing of things before that have been used fully and more packaging is used.

Recyclable waste:

Is what we can use again to make new items. Such recyclable items are:

ï  Paper/Card

ï  Glass

ï  Metal

ï  Plastics

ï  Food

ï  Garden waste

ï  Ink cartridges

ï  Electrical appliances

ï  Batteries

Recycling results in many things. Some facts include:

ï  1 recycled tin can = energy to power a TV for 3 hours

ï  60% of the rubbish in a dustbin could be recycled

ï  Unreleased energy in average dustbin could power a TV for 5000 hours

ï  9 out of 10 people would recycle more if it was easier

ï  80% of a vehicle can be recycled

ï  1 recycled glass bottle = energy to power a computer for 25 minutes

Recycling is important because it saves energy, enables sustainability, reduces demand for raw materials and reduces global warming.

 

2) Renewable/Non-Renewable Energy

Renewable:

Renewable energy is an energy source that can be used over and over again. At the current moment it seems such a source will never run out. Such sources include:

ï  Hydro Electric Power (HEP) Power from water:

-          Advantages:

-          No greenhouse gases

-          Cheap to run once built

-          Produces large bodies of water for leisure

-          Disadvantages:

-          Only built in certain areas

-          Alter the water flow which affects ecology

-          Cause build up of sediments

-          Dams effect people

ï  Biofuel (aka Biomass) Energy from plants:

-          Advantages:

-          Biodegradable

-          Non-toxic

-          Just as good as diesel

-          No sulphur = no acid rain

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Comments

Emily

this really helped, thank you!

Matthew Law

Cool notes on the case studies! thanks so much :D

Mr A Gibson

Test yourself on the types of energy, where they are used, case studies and the like. A thorough review of this topic.

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