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Global Climate Change
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Where has the oldest and youngest ice ages
young wisconsin old nebraska
the sediment on the ocean floor is mostly what?
skeletal material from plankton
Milkanovich theory of climate change
eccentricity
obliquitiy
precession
eccentricity
orbit not perfectly circular, distance between earth and sun varies 100kyears
obliquity
tilt 23.5 degrees goes back and forth 2 degrees 41kyears
precession
earth's axis wobbles, sometimes oriented towards sun sometimes away, 21 kyears
what are the levels in CO2 in the glacial atmospher?
lower
who proposed iron fertilization hypothesis?
john martin
what are possible mechanisms for glacial periods
ocean temperature changes, alkalinity cahnges, nutrient changes
climate change is more
abrupt than smooth
Author
sloos
ID
2058
Card Set
Global Climate Change
Description
Global Climate Change
Updated
2009-12-01T23:56:06Z
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