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SUN-EARTH
SYSTEM
This exercise
is to have you organize what you know about the earth-sun system.
1. Draw
a sketch/concept map of the earth-sun system. For the sake of simplicity,
concentrate only on the most fundamental interactions and physical quantities
given the sun and earth at their present positions. Ignore effects due
to people or the atmosphere.
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Do
the reading from
"The Coevolution of Climate and Life"
before you do the next parts.
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2. Now draw
a second map: Add to the above the atmosphere of the earth, and draw a
diagram that shows the atmosphere and the relevant features of the earth-atmosphere-sun
system without people.
3. List
the factors that you would add if we now add people to this system. Consider
only the major factors to add to this system taking into account only
phenomena on a global scale at a point in time indicated:
(a) 100,000
years ago (Neanderthal period)
(b) in 1990
4. What
phenomena related to the atmosphere are the most striking additions in
1990, compared to earlier years? Which of these appeared in your 10 important
issues in Assignment 1? What are the sources of these phenomena?
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