Daisyworld Model

Proposed by James Lovelock and Andrew Watson in 1983 to illustrate the Gaia hypothesis.
The planet is seeded with Black Daisies (@) and White Daisies (*). Empty ground is (.).
Black daisies absorb sunlight (low albedo), warming their local area. White daisies reflect sunlight (high albedo), cooling their local area. Daisies grow best at 22.5°C.
As the Sun's luminosity () slowly increases, watch how the planet's biosphere automatically regulates the global temperature (°C) through the shifting balance of black and white populations. Extreme temperatures turn the ground blue (freezing) or red (scorched).