September 11

September 11 - World Environmental Problems 11:53:00 Human...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
World Environmental Problems 11/09/2007 10:53:00 Human Environment and Sustainable Development Reading: Middleton Chapters 2 and 3 Try to look at these before next class as they will help with the video study  questions! Environment Physical Environment:      The biotic and abiotic things and conditions that  characterize the world around us Human Environment:      Includes social, cultural, historical, economic and political  events and conditions  Resources Humans use the environment to meet their wants and needs We classify the things we use as resources Resources are culturally and technologically determined  they are not absolute! 4 types of resources: Natural Resources: 1. Continuous : won’t run out 2. Renewable : naturally regenerate within  certain limits 3. Non-renewable : not renewable on the human  time scale
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Human Resources: 4. Extrinsic : human resources Environmental problems result due to a mismatch between extrinsic and natural  resources  Driving Forces: cause human impact on the environment 1.  Population 2.  Technology 3.  Sociocultural organization Mitigating Forces: act as checks on the driving forces or their impacts 1.  Authoritative Regulation 2.  Market adjustment 3.  Informal social regulation Population Human population has grown primarily due to two eras of technological change: Agricultural Revolution Agriculture allowed people to store food and feed extra people This allowed societies to become more complex because it freed up labour for  other uses Higher densities of people could be supported
Background image of page 2
Cities developed Industrial Revolution – 1800s Increased urbanization further because factories needed labour 50% of people now live in cities [so it continues today] Increased transportation Medicine Inventiveness Indus rev. responsible for increasing our pop so much Also responsible for us being so affluent.  Late 1700s human pop. doubling time was 1000 years Today it is 41 years In 1798 Malthus assumed a direct relationship between pop. and resources  He predicted that overpopulation would result in famine, poverty and conflict  [see map in powerpoint] Was Malthus right? Lots of conflict, poverty and famine in certain areas
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 11

September 11 - World Environmental Problems 11:53:00 Human...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online