Personal carbon trading

Carbon rationing, as a means of reducing CO₂ emissions to contain climate change, could take any of several forms. One of them, personal carbon trading, is the generic term for a number of proposed carbon emissions trading schemes under which emissions credits would be allocated to adult individuals on a (broadly) equal per capita basis, within national carbon budgets. Individuals then surrender these credits when buying fuel or electricity. Individuals wanting or needing to emit at a level above that permitted by their initial allocation would be able to purchase additional credits in the personal carbon market from those using less, creating a profit for those individuals who emit at a level below that permitted by their initial allocation.

Some forms of personal carbon trading (carbon rationing) could be an effective component of climate change mitigation, with the economic recovery of COVID-19 and new technical capacity having opened a favorable window of opportunity for initial test runs of such in appropriate regions, while many questions remain largely unaddressed. However, carbon rationing could have a larger effect on poorer households as "people in the low-income groups may have an above-average energy use, because they live in inefficient homes".