Climate Change Basics Flashcards
1
Q
subsystems in ESS
A
geosphere, hydrosphere, atmosphere, biosphere
2
Q
forcings
A
positive or negative feedback loops
3
Q
geosphere
A
lithosphere
4
Q
ice
A
cryosphere
5
Q
greenhouse gas effect
A
infrared light
6
Q
things that lead to forcings
A
solar energy, volcanoes, greenhouse gasses
7
Q
Milankovitch cycles
A
100,000; 41,000; 26,000
8
Q
main greenhouse gases (3)
A
water vapor, carbon dioxide, and methane
9
Q
negative feedback loop
A
weakening of the polar vortex
10
Q
proxy
A
a natural feature that is impacted by climate conditions
11
Q
three most useful proxies
A
trees, ice, and soil
12
Q
what ice samples show
A
atmospheric makeup in the past
13
Q
gathering info from trees
A
dendrochronology
14
Q
what sediment layers show
A
pollen levels and contents of water
15
Q
what coral samples show
A
temperatures and contents of water
