Lecture 17 - December 3, 2009 |
Essential |
Background |
Outline
- managing forests for integrity
- case studies of REDD
- fisheries as an example of a CPR
Using viewers and Multiple Perspectives
Life lessons that our grandmas taught us:
Get a Kleenex and blow your nose!
|
|
|
Managing for forest ecological integrity
- composition
- structure
- function
- as compared to its natural or historical range of variation
- large forests and parks compared to smaller historical parks
- report the results green, yellow, red - stoplight metaphor
- in the context of global climate change
- rapid change of climate doesn't allow time for the forests to adapt to new composition
- climate models predict NH will have the climate of either Virginia or N. Carolina under low and high CO2 emission scenarios (TNC - Winter 2009)
|
network view |
Tierny et al 2009 |
Several Case Studies of REDD
- carbon emissions from deforestation accounts for 17 to 18% of global carbon emissions
- that's more than all vehicles (13%)
- planting new trees counts but not cutting down forests doesn't count - until REDD
- some countries have already preserved their forests (how can that count)
- country (or larger) level of accounting is needed to avoid leakage
- in Brazil, 90% of deforestation is illegal - how can that be controlled?
- land tenure - ownership by local people is a real problem
- Economist - although REDD has risks there are more risks with continued deforestation
- (reverse statement of the precautionary principle - i.e. we know what we are doing is bad, try something else)
- Bolivia
- N. California
- Indonesia
Some interesting facts:
- young redwood forests in California that are growing can take up about 3 tons CO2 per year per acre
- can hold 500 tons per acre total
- a car produces about 5 tons per year
- Pacific Corp has agreed to pay about $10/ton
|
|
case studies: The Nature Conservancy
Bolivia: Washington Post
carbon payments |
Open ocean fisheries as a CPR
- population estimates are determined from fishing effort and success
- predator-prey model
- can't just count the fish in the ocean
- definition of CPR -
- system view of the fisheries
- growth, harvest relationship
- concept of the maximum sustainable yield
- Allee effect (minimum viable population size)
- reason for harvesting
- protein source - malnutrition
- (compared to undernutrition)
- mechanisms for ocean fish harvest
- potential solutions
- institutions - as suggested from CPR
- set up iterative games
- beneficial to cooperate
- take some portion of the range and exclude fishing
|
game viewer
wiki -economics |
mvps
eoe-marine reserves |
Revisit the idea about using multiple views
- Multiple view framework
- pluralism
|
viewers - multiple perspectives framework |
|
Preview of ESR 102 - Human impact
- Topics
- Impact of humans
- population
- poverty, health and the environment
- energy resources, technology and impact
- water resources, technology and impact
- land resources, technology and impact
- integrated responses to global climate change, food shortages, water depletion
- Structured views
- review systems & games
- values and choice
- risk and uncertainty
- environmental accounting
- Field/Lab
- energy efficiency measurements and side effects
- water resource technologies
- group project: design criteria for a self-sufficient energy and water home or community
|
|
|