Bad news for commodities...

CEOs of Freeport-McMoran (FCX -2.4%) and Codelco say China’s plans to curb its economy threaten to reduce copper demand, further lowering commodities prices that have already slumped on Europe's economic concerns. China is a "risk to the world’s marketplace in the near term," FCX's Adkerson says, but its inflation fight "will likely lead to a more sustainable situation going forward."