quiz 4 Flashcards
1
Q
What is Environmental Geography?
A
- Branch of geography that describes the spatial aspects of interactions between humans and the natural world
- Requires an understanding of the dynamics of:
- Biogeography
- Climatology
- Geology
- Geomorphology
- Hydrology
- Requires an understanding of the ways human societies conceptualize the environment
2
Q
What is the ‘Environment’?
A
- Overworked word that means the totality of things that in any way affect an organism
- Biological → Relating to living organisms
- Ecological → Relating to the relationship of living organisms to one another and their physical surroundings
- Ecosystem → Functional unit or complex of relations in which living organisms interact with one another and with their physical environment, forming a dynamic yet broadly stable system
- Natural → Not caused by humankind
- Physical → Relating to natural features and processes of the environment
- What roles do humans have in the environment?
3
Q
Human-Environment Global Issues
A
- Physical Environment (Physical Geography) + Humans and Societies (Human Geography) = Global Environmental Issues
- Global climate change
- Water shortage
- Ozone layer depletion
- Acid rain
- Desertification of the land
- Ocean pollution
- Biodiversity decline, etc.
- South Korea has acidic rain due to factories in India and China
- Any policies made relies on the political will of the people → political issue
- Global environmental issues are, at their very core, social problems, NOT ecological problems
- Global environmental issues are inherently social and political in nature
4
Q
The Roots of Modern Environmental Problems
A
- Atmosphere
- Light blanket of air
- Hydrosphere
- Surface and subsurface waters in oceans, rivers, lakes, glaciers, and groundwater
- Lithosphere
- Upper reaches of the earth’s crust
1. Soils that soil plant life
2. Minerals (nutrients) for flora and fauna
3. Fossil feuls and ore for energy use
- Upper reaches of the earth’s crust
- Biosphere (or ecosphere)
- Thin film of air, water, and earth within which all organisms live in
5
Q
Biocapacity, Ecological Footprints
A
- Biocapacity
- The capacity of ecosystems to regenerate what people demand from the ecosphere
- Supply and demand in a natural setting
- Biocapacity buffer
- The amount of biocapacity set aside to maintain the ecosphere and viable populations of species
- Ecological debt
- Level of resource consumption and waste discharge by a population which is in excess of the biocapacity
- Ecological footprint
- Total area of land required to sustain a population
- Calgary has a very large ecological footprint
- It terms of urban sprawl
6
Q
Three Scenarios: Future Ecological Debt
A
- the higher the population, the worse it becomes
First Scenario: Business as Usual
- Not a lot of environmental policies in place → ecological footprint becomes larger
- So much demand, not a lot of supply going around
Second Scenario: Slow Shift
- Trying to impose policies after
- This will take years
Third Scenario: Rapid Reduction
- Act now, environmental debt shrinks a lot. faster
7
Q
First Scenario: Business as Usual
A
- Not a lot of environmental policies in place → ecological footprint becomes larger
- So much demand, not a lot of supply going around
8
Q
Second Scenario: Slow Shift
A
- Trying to impose policies after
- This will take years
9
Q
Third Scenario: Rapid Reduction
A
- Act now, environmental debt shrinks a lot faster
10
Q
The Overshoot
A
- Ecological debt
- Difference between supply and demand
- Most developed countries are most likely to overshoot biological capacity
- Mar 13, Canada, US overshoot
11
Q
What About Other Species?
A
- According to Stuart Pimm (Biologist)
- Pre-human rate of extinctions on earth was around on species per year for every million species in existence
- Refined later downwards to 0.1 species per year for every million species
- Today, this rate has increased to between 100 and 1,000 species per year for every million species in existence
- It took a long time for species to go extinct before humans populated the earth
- It is increasing at a much faster rate
12
Q
The International Union for Conservation of Nature’s (IUCM) Red List of Threatened Species (The Barometer of Life)**
A
- The IUCN Red List of Threatened Species Identifies 31,000 Species Threatened With Extinction, Including:
- 14% of birds
- 25% of mammals
- 30% of all sharks and rays
- 33% of reef-building corals
- 43% of conifers
- 41% of amphibians
13
Q
The IUCN Barometer of Life: The Case of the Amazon Rainforest**
A
- From 2010 to 2014, a total of 12,256 species were assessed.
- The assessment found that 1,182 species (9.6% of all species assessed) were threatened with extinction, including:
- 55 elasmobranchs (32%)
- One myxine (20%)
- 110 mammals (15%)
- 234 birds (12%)
- 80 reptiles (11%)
- 299 invertebrates (9%)
- 353 bony fishes (8%)
- 41 amphibians (4%)
- Chance on nuclear war, 1 in 1,000
- Chance of total natural risk, 1 in 10,000
14
Q
How Do We Respond to Global Environmental Issues
A
- Resignation: All is lost
- Divine providence: It’s in God’s hands
- Denial: What’s the problem?
- Paralysis: It’s too overwhelming
- Mudding through: It’s going to be alright… somehow
- Deflection: It’s not my problem
- Solutionist: Answers CAN and MUST be found!
15
Q
Suspect 1: Modern Industrialization
A
- Colonialism and trade
- Exchange of ecologies and export of raw materials to Europe
- Restructuring of land use
- Commodification of nature
- During colonialism, they are pillaging natural resources → altering what those landscapes are all about
- Destroys the natural environment of that place, changes their way of life and the natural ecology
- 19th century
- Foreign investment
- Mining, lumber, grains, livestock
- 20th century
- Refrigeration
- Airplanes and cars
- Refrigeration required a lot of chemicals that was damaging to the environment
- Dependence of developing world on developed world
- Import substitution after WWII