EU, U.N.-backed carbon prices hit new record lows
Front-year U.N.-issued carbon credits, so-called certified emission reductions (CERs) fell nearly 10 percent to a new record low of 3.99 euros ($5.22) a metric ton.
Meanwhile, benchmark EU carbon permits tumbled some 7 percent to a fresh record low of 6.53 euros a metrc ton.
Both contracts have shed more than 60 percent of their value since June, as Europe's worsening debt crisis dented demand at a time when the world's biggest carbon market is oversupplied with hundreds of millions of credits and permits.
($1 = 0.7641 euros)
(Reporting by Jeff Coelho; editing by Keiron Henderson)