Impacts of Climate Change on Marine Organisms and Ecosystems Flashcards

1
Q

What is the IPCC’s critical threshold?

A

<2 deg C

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2
Q

Variability in Earth’s orbit

A
  • Precession
  • Eccentricity
  • Obliquity
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3
Q

Where does the data for marine life records climate change come from?

A

The hard remains of their shells

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4
Q

What is committed temperature rise?

A

Even if we stopped emitting today it would continue to warm

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5
Q

What is a visible sign of the ocean under stress?

A

Marine heatwaves

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6
Q

What causes thermal displacement?

A

Marine heatwaves

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7
Q

Effects of aquaculture

A

Problem - fishery collapses
Solution - can absorb CO2, could reduce acidification

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8
Q

Hypoxia

A

Warmer ocean water causes the water to hold less oxygen

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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
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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

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11
Q
A
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