Asset Class	Feed	Network	Answer	TAM	Issuer/Operator	Deviation	Heartbeat	Product Type
Green Energy	BCT Carbon-Tonne Price	Polygon	$0.222 CoinGecko	~$4.66 M (21 M tokens * price) CoinGecko	Toucan Protocol	5 %	24 h	Carbon credit token
	NCT Carbon-Credit Price	Polygon	$0.47–1 high quality CO2 tonne	~$0.67 M (~1.4 M max tokens * price)	Toucan Protocol	5 %	24 h	Carbon-pool
	KLIMA Basket CO2 Token Price	Polygon	$0.19 – basket of tokenized CO2	~$4.1 M (18.94 M tokens * price)	KlimaDAO	5 %	24 h	Re-base token
	MCO2 Carbon-Credit Price	Ethereum	$0.099 CoinGecko	~$0.28 M (2,851,014 tokens * price) Messari	Moss Earth	5 %	24 h	Carbon credit token