What are the elements of sustainability? Describe the focus of each category
Describe the wizard and prophet approaches
wizard: technological advancement, tech can expand natures limits
prophet: apocalyptic environmentalism, cut back, are exceeding limits
What is the definition of sustainability?
meeting the needs of present without compromising ability of future gens to meet their own needs
- places limits of nature at core of all activity, allow nature to regenerate
Is definition of sustainability (development) sufficient?
What is the comparison between mallows hierarchy of needs and the Seneca First Nation diagram of human needs?
What factors determine birth rate? Why might birth rate decrease in developed nations?
Factors: health care, culture, religion, women’s rights, conflicts, disease education, standard of living
May decrease as better access to health care, education, rights, less work etc.. are more accessible
Why is it problematic to discuss population growth and reducing it?
What are the two ways to promote impacts of population growth without mentioning it?
What are the 3 graphs which represent global warming?
1) Global averages surface air temperature (increasing)
2) global sea level (increasing)
- earth heats, ice melts and water expands = rising sea level
3) arctic sea ice extent (decreases)
- warming = loss of ice = absorption of solar
What are the anthropogenic climate change impacts (human)?
1) anthropogenic carbon emissions
2) atmospheric contraptions = ocean acidification
3) energy imbalance
4) climate change (climate sensitivity)
5) impacts
6) economic analysis
If all emissions were eliminate today, what would occur with climate change?
the planet would still warm, takes time for ocean and sinks to reabsorb CO2.
- stopping emissions TODAY would limit warming to 1.5 degrees
- the CO2 we’ve emitted in 100 years takes 100 million years to store
What is a climate energy balance and why are we in an imbalance?
balance: incoming radiation = outgoing radiation
What are the factors which determine globally averaged surface temperature?
1) amount of incoming solar radiation constant
2) albedo of the earth
3) greenhouse factor
4) hydrological cycle
5) air sea interactions
Is the greenhouse effect a good thing? Why is it detrimental today?
Greenhouse effect is good, keeps Earths stable temperature when greenhouse gases exist in trace amounts
Where does most excess energy that is not emitted from the atmosphere go?
(90% )Most goes into the ocean, increasing ocean acidification and expanding water
What are the fossil fuels from most CO2 emitted in order?
Coal, oil, gas
What are the consequences of ocean acidification?
20% harder for organisms to form shells
Why is warming temperature a problem?
impacts every other earth system
What are the natural climate system feedbacks (which are impacted by warming)?
water vapour feedback, cloud feedback, ice albedo-temperature feedback, methane temperature feedback
Why are emissions and concentration different things?
Increased CO2 (emissions) increases concentration of other system leading to an energy imbalance = warming
How can running a global climate model develop policies?
what are some impacts of climate change according to glen lesings?
health, arctic sea loss, sea level, reef systems
What are some mitigation strategies?
replace fossil fuel with renewable energy and nuclear, replace coal with gas, carbon capture, removal of CO2 from atmosphere, solar management , carbon tax for renewable energy
What does the material self?
-we think/express ourselves through material possessions, possessions are apart of our identities
- emotional weight, key to self-representation, communication, identity