Class for 10-1

class notes for 10-1 click HERE

Gap between rich and poor

Haves and have-nots

Highly developed countries HDC 20% of world
US Europe Canada Japan

Poor countries 80%

Moderately developed countries
Less developed countries

Moderate eg. Mexico, South Africa, Thailand

Less eg. Bangladesh, Mali, Ethiopia, Laos

Problems of less developed countries

Hunger disease illiteracy

Cheap unskilled labor
Capital for investment is scarce.

Types of Resources

Non renewable
Renewable

Nonrenewable minerals---Al tin copper
Fossil fuels oil, coal, natural gas
Non metallic minerals, salt, phosphate ,stone

Natural processes do not replenish in human time scale
Eg fossil fuel millions of year.

Factors to consider
Extraction and processing efficiency
How much is consumed

US and other HDC consume most NRR

Finite supply ----------- exhaustion or increase in price

Technology ------------- substitutes
--------- better processing (future)

Renewable resources

Eg. Trees, fish, fertile soil, fresh water

Nature replaces in days to decades (human scale)

Can use forever if not overexploited
Eg foreign fishing observer program

Developing countries

RR important ............ provide food
Subsistence farmer—harvest just enough to provide for family
(compare with cash crop farmer)

Population increase overexploit RR
Eg mountain slope or tropical rain forest
Inappropriate land for farming

Short term---------------increase food
Long term---------------decrease agricultural production and increase
---------------Environmental destruction


So we see that RR are potentially renewable

Increased population ----------- increase need for food and money
----------increase export of natural resources and
Increase in land used in non-sustainable ways

Increase exploitation of RR
Grow food
Pay debt

OR should they conserve for future generation