Environment Flashcards
How does development link to the environment?
- Population growth due to health developments cause an increase in need for resources
- This causes impact on the environment with many land areas being used for production
- Urbanisation causes land areas to clear to make way for new towns, leading to things like deforestation
- The need for agriculture causes desertification from overgrazing
Identify 6 factors that put pressure on the environment.
1) Population growth
2) Industrial development
3) Species extinction
4) Deforestation
5) Desertification
6) Water pollution
Describe how population growth puts pressure on the environment.
- Ehrlich (1968) argued that the growing population causes environmental degradation due to desperate use of resources to sustain
- Rees (1996) estimated that the average consumption of someone from the West uses 10-14 acres of land in their lifetime whereas if resources were shared equally everyone would get 4.25 acres
- The rich consume resources of the poor with their ‘throw away’ economy that leads to waste
Describe how industrial development puts pressure on the environment.
- Technology with mining and using fossil fuels to create energy has effect on environment and climate
- CO2 levels are on the rise which causes global warming
Give an example of a country’s industrial development puts pressure on the environment.
China will have contributed to 40% of global CO2 emissions by 2050.
Describe how species extinction puts pressure on the environment.
- Ellwood (2001) notes that global extinction crisis is accelerating with dramatic declines in wildlife
- Habitat loss is a major cause of decline in many species
- Over past 500 years mankind has forced 816 species to extinction with a rate of 1 species every 4 years
- 12% of bird life, 25% of mammals and more than 30% of amphibians are threatened with extinction
Describe how deforestation puts pressure on the environment.
- Kingsbury (2004) argues deforestation may be the world’s most significant environmental problem
- Forests absorb a lot of CO2 so has implications for climate change
- Estimations of major rainforests (e.g. Amazon) being cleared within 30 years
- Motivated by poverty and debt as Brazil cleared 12% of Amazon in the 70s in attempts to repay World Bank
Describe how desertification puts pressure on the environment.
- In 2000, drought and desertification affected 110 countries
- Result of over-cultivation and overgrazing land for agriculture and cattle farming to provide resources for export to pay off debt
- Fertile land in developing countries owned by the West for cash crops
- Kinsbury (2004) noted that Africa in the 1970s were able to feed themselves with the land however by the 1980s they relied on aid
Give evidence for agriculture putting pressure on the environment.
24% of the earth’s land surface has been cultivated for agriculture.
- Millennium Ecosystem Assessment report (2005)
Describe how water pollution puts pressure on the environment.
- Clean drinking water threatened by pollution of rivers and streams
- Unclean drinking water threatens continuity of human and animal life
- Majority is caused by waste products of industrialisation with pesticides and chemical fertilisers
- In 2001, more than 1 billion people didn’t have access to piped water
Identify 4 factors that cause environmental degradation.
1) Economic necessity
2) Greed
3) Western consumer demand
4) Globalisation
Describe how economic necessity causes environmental degradation.
- Many of the poor in third world countries have no choice but to use environmental resources to survive
- Countries use their economic resources in order to sell to the West to pay off debt
Identify a sociologist who talks about economic necessity causing environmental degradation.
Ellwood (2001) argues that animals are poached by impoverished African villagers for the valuable ivory to stay alive by selling it to pay for food.
Describe how greed causes environmental degradation.
- The desire to accumulate wealthy by local elites and international corporations results in exploitation and selling off environmental resources
- Cost-cutting to increase profits may also lead to companies partaking in illegal dumping of toxic waste
Describe how Western consumer demand causes environmental degradation.
- Most developing countries are dependent on raw materials or cash crops for the majority of their income to pay off debt
- This may result in either overproduction or in the use of production techniques that pay little attention to the environmental costs with emphasis on profit
- Western consumerism demands resources to be in constant supply with a lot of it going to waste
- 4.5lbs of trash per day in the US is burned or dumped which causes pollution to air and environment.