Planetary boundaries Flashcards
1
Q
Designed where?
A
Stockholm Resilience Centre
2
Q
What is it?
A
Framework for expressing the Earth system’s resilience and the risks which humans pose to it
3
Q
How are the proccesses measured?
A
Using concentrations and flow rates, (Control viarables)
4
Q
Where is the boundary set?
A
Below the thershold to act as a buffer
5
Q
Climate change
A
- Monitored by carbon emmisions
- Stable environment must be below 350ppm
6
Q
Biosphere-intergrity
A
- Affects flows and energy
- Genetic diversity - affects the species resilience to climate change
- Functional diversity - needed for a healthy ecosystem
7
Q
Landuse
A
- Monitored by forest cover (%)
8
Q
Freshwater changes
A
- Monitored by compumtive blue water
- Connection to land use changes and biosphere
9
Q
Biogeochemical flows
A
- Pathway between living organisms and the environment
- Affected by fertilisers
- Nitrogen and phosphorus flows
10
Q
Ocean Acidification
A
- Linked to CO2 concentrations
- Monitored by Aragonite saturation state
- Need to stay above 80% of preindustiral state
11
Q
Areosals
A
- Affect clouds, long-lasting
- Monitored by atmospheric areasol loading
12
Q
Ozone
A
- Filters out harmful radiation and traps heat
- Monitored by stratospheric O3 conc. (DU)
- Goal of at or above 275 DU
13
Q
Novel entities
A
- All kinds of pollution
- Production, release and unwanted impact
14
Q
How many proccess?
A
9
