Total Number of Allowances in Circulation

The aggregate number of carbon emissions allowances that are available and actively traded within a carbon trading system or emissions trading scheme. This includes all allowances that have been issued to participants, whether they have been allocated for free or purchased. The total number of allowances in circulation is an important metric for assessing the overall supply and demand within the market, influencing the price of carbon credits and the effectiveness of the trading system in achieving its emissions reduction targets. This figure helps regulators and stakeholders understand the market's capacity and dynamics for managing greenhouse gas emissions.