The Assertion is Correct: Carbon markets, such as Cap-and-Trade systems and voluntary offset markets, are recognized under the Paris Agreement (Article 6) as essential market-based tools to incentivize emission reductions by putting a price on carbon.

The Reason is Correct: Carbon markets often involve the transfer of resources from the private sector to the State, especially when governments auction emission allowances or permits, thereby generating public revenue from private emitters.

Statement-II is not the correct explanation for Statement-I because the widespread adoption of carbon markets is driven by their ability to achieve climate targets at the lowest economic cost through market flexibility, rather than the specific fiscal mechanism of transferring funds to the State.