The price of the December 2017 contract in carbon allowances rose 27 cents, or nearly 5 percent, to 6.09 euros a tonne on the ICE Europe Futures exchange.
By Friday morning at about 10:15 cet, the price had climbed further to 6.30
The prices of EU carbon emissions rose a fifth day on Thursday, climbing over 6 euros a tonne for the first time in six weeks.
The price of the December 2017 contract in carbon allowances rose 27 cents, or nearly 5 percent, to 6.09 euros a tonne on the ICE Europe Futures exchange.
By Friday morning at about 10:15 cet, the price had climbed further to 6.30