This implementation of DaisyWorld was selected by the 1999 Leadership Program for Teachers: Environmental Science Institute, Princeton: "After reviewing over a dozen sites dealing with Daisyworld, we think yours is the most useful in terms of suggesting to k-12 teachers a starting point to learn about the model."

3d DaisyBall is our custom variant, with multiple sites around a sphere. Different lattitudes receive different solar input, with daisy color showing the dominant daisy species at each site. Java 1.4.

Updated 2008-11, released 1998-1.

2d DaisyWorld is the classic model, demonstrating homeostasis via ecosystem feedback loops (daisy albedo). DaisyWorld was invented to explain how the Gaia Hypothesis did not require a sentient Earth, but only feedback loops. There is no spatial structure. The daisies show percent population at a single site. Used in teaching "Intro to the Earth System" at UCLA, among other non-Yale courses. Java 1.4.

Updated 2008-11, released 1998-1.