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Ch. 12 Climate Change
Geog 260 @ SCC
20
Geography
Undergraduate 2
12/01/2009

Additional Geography Flashcards

 


 

Cards

Term
IR
Definition

Industrial Revolution

this was the starting point of "global warming"

Term
Why is it important to study climate changes?
Definition
Because each change will indeed have a significant impact on natural disasters.
Term
What is the GHE?
Definition
Greenhouse Effect
Term
Define what GHE is:
Definition
A natural and critical process that keeps Earth's atmospheric temps. at livable levels.
Term

1. What does GHG stand for?

and

2. What are some GHG's?

Definition

1. Greenhouse Gases

2. Water Vapor (H20)

Carbon Dioxide (CO2)

Methane (CH4)

Nitrogen Oxide (N2O)

Term
What does Ozone (O3) do?
Definition
Helps filter dangerous UV radiation.
Term

Which GHG has the highest percent in the reason for global warming?

Which comes in second?

and...

Third?

Definition

1. CO2 with 60%

2. CH2 with 16%

3. N2O with 5%

Term
What is 21 times better at trapping heat then CO2?
Definition
CH4 (Methane)
Term
As the atmoshpere warms what else warms?
Definition
The oceans
Term
What is paleoclimate?
Definition
The Earth's past climate.
Term
What do fossils tell us about past climate?
Definition

Fossils in rocks can tell us:

about ancient climate.

If there is a warm climate fossil in a rock once scientist date the rock they can know that it was warm at that time.

Term
What are some rock types and what do they tell us?
Definition

- limestone: warm ocean conditions

- salt deposits: desert conditions prevailed

- coal deposits: warm tropical, marsh or swamp conditions

- tillites: ancient glaciers

Term
Define Isotopes
Definition
They are chemicals that can be used to estimate climate conditions. They are found within rocks
Term
Was the early earth hot or cold?
Definition
Hot
Term
What took out a lot of the CO2 out of the early atmosphere?
Definition
Plant photosynthesis
Term
Times that the Earth's overall temp is less then normal and glaciers are abundant are called what?
Definition
Ice Ages
Term
The opposte if an ice age is what?
Definition
Torrid
Term

What are three things about Pleistocene globally?

Definition

30% of Earth’s surface covered
Huge continental ice sheets
Lower sea levels

 

Term
In the oceans what has increased over the last 200 yrs?
Definition
Acidification
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