To hand in:

1. Using the first scenario ("DaisyWorld in 3 colors"), you'll notice that the living world temperature crosses from above to below the dead world temperature at a luminosity around 0.95. Find an albedo setting for "barren" (Daisies menu) that moves that crossing point to luminosity 1.0. Explain.
2. Does your solution above have the same effect on other scenarios?
3. Going back to the first scenario, set insulation to 0.5, and retry your solution above. How does it need to be adjusted? Explain.
4. Run the original scenario from the Scenarios button again to reset it to normal, then set the ideal temperature to 30.0 from the Parameters button. Now how do you need to fix your solution above?

Ginger Booth, October 19, 1997