Impacts of Climate Change on Marine Organisms and Ecosystems Flashcards
1
Q
What is the IPCC’s critical threshold?
A
<2 deg C
2
Q
Variability in Earth’s orbit
A
- Precession
- Eccentricity
- Obliquity
3
Q
Where does the data for marine life records climate change come from?
A
The hard remains of their shells
4
Q
What is committed temperature rise?
A
Even if we stopped emitting today it would continue to warm
5
Q
What is a visible sign of the ocean under stress?
A
Marine heatwaves
6
Q
What causes thermal displacement?
A
Marine heatwaves
7
Q
Effects of aquaculture
A
Problem - fishery collapses
Solution - can absorb CO2, could reduce acidification
8
Q
Hypoxia
A
Warmer ocean water causes the water to hold less oxygen
9
Q
HABS (harmful algal blooms)
A
- Can be toxic or non toxic
- Can be red or have no colour at all
- Can occur naturally or can be caused by overfeeding and climate change
10
Q
Loss of artic sea ice
A
CO2 more soluble in cold water
If we continue to lose this level of sea ice by 2050 there will be no sea ice
11
Q
A
