Table 3 List of scenarios modelled in TIAM-UCL.

From: An equitable redistribution of unburnable carbon

Scenario type

Scenario name

Description

Optimal

1.75C

Optimal distribution of fossil fuel production under 1.75 °C target. Global carbon budget of 800 GtCO2 from 2018, with warming limited to 1.75 °C by 2100. No overshoot of 2 °C permitted.

2C

Optimal distribution of fossil fuel production under 2 °C target. Global carbon budget of 1170 GtCO2 from 2018, with warming limited to 2 °C by 2100. No overshoot of 2 °C permitted.

Redistributivea

1.75C HDI LTX

HDI-based redistributive case under a 1.75 °C target using a lower tax variant

1.75C HDI HTX

HDI-based redistributive case under a 1.75 °C target using a higher tax variant

2C HDI LTX

HDI-based redistributive case under a 2 °C target using a lower tax variant

2C HDI HTX

HDI-based redistributive case under a 2 °C target using a higher tax variant

1.75C-A HDI LTX

HDI-based redistributive case under a 1.75 °C target under SSP1 demands, using a lower tax variant

1.75C-A HDI HTX

HDI-based redistributive case under a 1.75 °C target under SSP1 demands, using a higher tax variant

2C–A HDI LTX

HDI-based redistributive case under a 2 °C target under SSP1 demands, using a lower tax variant

2C–A HDI HTX

HDI-based redistributive case under a 2 °C target under SSP1 demands, using a higher tax variant

1.75C BEN LTX

Accrued benefit-based redistributive case under a 1.75 °C target using a lower tax variant

1.75C BEN HTX

Accrued benefit-based redistributive case under a 1.75 °C target using a higher tax variant

2C BEN LTX

Accrued benefit-based redistributive case under a 2 °C target using a lower tax variant

2C BEN HTX

Accrued benefit-based redistributive case under a 2 °C target using a higher tax variant

  1. aHigher tax variants in 2030/50 are $196/$750 (Group 2) and $98/$375 (Group 1), while for lower tax variants, the 2030/50 levels are $155/$375 (Group 2) and $78/$188 (Group 1).
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