Carbon Pools, Base Carbon Tonne & Nature Carbon Tonne
However, the downside to this is that they are specific to a single project and vintage, which makes these tokens not very liquid. This is why Toucan created so-called carbon pools, which bundle multiple project-specific tokenized carbon tonnes (TCO2 tokens) into more liquid carbon index tokens, enabling price discovery for different classes of carbon assets (i.e. by project type, country, carbon standard or co-benefits).
In October 2021 Toucan released its first pooled carbon asset called Base Carbon Tonne (BCT). Within eight weeks over 15 million carbon credits have been tokenized and nearly all of the carbon tokens have been deposited into the Base Carbon Pool. BTC consists of all carbon credit types (solar, wind, nature-based, etc.) from Verra Carbon Units (VCU) of 2008 vintages or later, while the Nature Carbon Pool that backs the “NCT” token only accepts carbon tokens that are created with nature-based methodologies from vintages of 2012 onwards.