Calculated by the lab
- Global temperature
- Ice fraction
- Ice-albedo feedback
🫠 Melt the ice
Raise greenhouse warming, remove modeled ice, and separately increase ocean coverage.
Ice loss is computed; shoreline movement is a qualitative ocean input.
Building the laboratory: star, orbit, planet, atmosphere...
What actually happens
This scenario raises the greenhouse control until the global equilibrium becomes hot and the model's ice fraction falls to zero. That part follows the energy-balance and ice-albedo calculation.
It also changes the ocean control directly from 71% to 79%. Replaying the visual compares a modern-shoreline reference with the selected final state. That before/final-state comparison is not elapsed time, a melt rate, or a literal 70-meter sea-level rise over elevation data.
Real loss of the Greenland and Antarctic ice sheets would reshape coastlines over long timescales and with strong regional differences. Ice-sheet flow, thermal expansion, land elevation, and a melt timeline are outside this model.
How the simulation unfolds
Each step is labeled so you can tell a calculated result from an explanatory visual or wider scientific context.
- Changed input
Increase greenhouse and ocean controls
Greenhouse strength is set to 82 and ocean coverage is separately set to 79%.
- Computed
The equilibrium loses its ice
The energy-balance model calculates higher temperature, lower albedo, and near-zero global ice.
- Illustrated
A reference coast gives way to the final state
Replay compares a modern-shoreline reference with the selected 79% ocean final state. It is a before/final-state comparison, not a time simulation or melt rate.
- Scientific context
Real sea level needs topography
Ice volume, thermal expansion, gravity, and land elevation control local shoreline change.
What is computed, illustrated, and not modeled
Shown to explain the result
- Qualitative reduction of visible ice
- Replayed before/final-state shoreline comparison
Outside this model
- Meters of sea-level rise
- Elevation-aware coastlines
- Ice-sheet and ocean timescales
Model scope: Ocean coverage is patched independently of ice loss. The replayed before/final-state shoreline comparison is not elapsed time or a literal sea-level projection.