China’s national carbon market cumulative trading volume tops 1 billion tonnes

The scale is the story here: a compliance market covering most of a major economy's emissions creates a price signal that increasingly feeds into corporate costs and, indirectly, into how heavy emitters are valued. The signal matters most for covered industrial firms and for anyone tracking the broader carbon-linked asset class, since liquidity of this depth is a precondition for any financial products built on top of it. Whether the market's scope and liquidity keep expanding beyond quotas into broader carbon-linked instruments is the open question worth watching.