Climate Changes

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What are the four ways to determine climate change?
Long temperature records, Carbon dioxide levels, Pollen analysis, Dendrochronology.
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What is Dendrochronology?
The study of Tree rings
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What is the benefits of long temperature change?
You can see the general increase in temperature over a period of time, it is the only record of temperature change we have
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What is one disadvantage of Long temperature records?
The equipment used in the 1600s was not as advanced and may be unreliable.
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WHat is another disadvantage?
The readings don't go back longer than 1600s
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What is Palynology?
The study of living things, fossils, spores and pollen.
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Where is Pollen tested?
From Peat bogs
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What is Peat?
The accumilation of partially preserved matter, mainly the remains of dead plants
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Why is the decay rate slow in peat bogs?
In anaerobic conditions, the absense of bacteria, It is often acidic as well.
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Why is pollen useful for telling Climate change?
We can see what plant was well pollinated and see the conditions for that plant or tree.
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Why are Pollen grains very resistant to decay?
A tough outer layer
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How can we assume the age of Peat bogs?
By using Carbon -14 dating.
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What do Peat bogs form in?
Layers.
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Other cards in this set

Card 2

Front

What is Dendrochronology?

Back

The study of Tree rings

Card 3

Front

What is the benefits of long temperature change?

Back

Preview of the front of card 3

Card 4

Front

What is one disadvantage of Long temperature records?

Back

Preview of the front of card 4

Card 5

Front

WHat is another disadvantage?

Back

Preview of the front of card 5
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