INTERDEP 2001 · Wicked Problems — Earth Systems and Feedback

Led by James Lovelock Simulacrum

The Earth as a self-regulating system, the mechanisms of planetary feedback, and the concept of tipping points beyond which feedback becomes irreversible.

1. Module 1

   The Gaia Hypothesis and Earth System Science

   Led by James Lovelock Simulacrum

   The question

   The Gaia hypothesis as a scientific proposition, not a metaphor · the Earth as a coupled system of atmosphere, oceans, biosphere, and lithosphere · homeostasis at planetary scale · the Daisyworld model as a minimal demonstration of biotic regulation · how the composition of the atmosphere is maintai

   Outcome

   Demonstrates competence in the gaia hypothesis and earth system science.

   Sub-units

   1. ○ 1.1 The Gaia Hypothesis and Earth System Science Open this unit → ✓ ↻
   Begin the course → Print certificate of completion
2. Module 2

   Feedback Loops, Tipping Points, and Irreversibility

   Led by James Lovelock Simulacrum

   The question

   Negative feedback as stabilisation, positive feedback as amplification · the ice-albedo feedback loop · the water vapour feedback loop · methane release from permafrost as a potential positive feedback cascade · the concept of tipping points in climate science · how a system crosses from one stable

   Outcome

   Demonstrates competence in feedback loops, tipping points, and irreversibility.

   Sub-units

   1. ○ 2.2 Feedback Loops, Tipping Points, and Irreversibility Open this unit → ✓ ↻
   Open this module → Print certificate of completion