global change Flashcards
1
Q
CFC
A
Chlorofluorocarbons (chlorine, fluorine, carbons)
2
Q
Polar Vortex Winds
A
Capture CFCs /G.H. gases in winter
3
Q
Ozone in stratosphere
A
Keeps UV rays out
4
Q
Montreal Protocol
A
no more CFCs (1987)
5
Q
Good ozone
A
in the stratosphere, Ultraviolet (UV) protection
6
Q
Bad Ozone
A
Troposphere
7
Q
What are greenhouse gases?
A
Gases keep heat in CO2, CH4, N2O, CFCs
8
Q
Are greenhouse gases bad?
A
No, they’re important because they regulate temperature.
9
Q
Why is global warming bad?
A
Affects weather, biodiversity, glacier melt, disease, refugees
10
Q
Ice core samples
A
measure CO2 levels and temp.
11
Q
Ice (white)
A
Reflects light (albedo)
12
Q
Sea ice
A
floats in sea
13
Q
Land ice
A
Ice attached to land
14
Q
Permafrost
A
Layer of soil permanently frozen
15
Q
Global warming
A
Permafrost thaws
16
Q
The Albedo effect
A
When white light is reflected
