The price of carbon allowances for the second phase of the European Union’s emissions trading scheme, which runs from 2008 to 2012, has fallen to less than €20 from a late-May peak of €25.

There seems to be ever growing market demand for carbon-neutral services in the United States. But questions linger that, with voluntary carbon offsets under attack, America's fledgling market can deliver the kinds of...

The CO2 market has seen considerable erosion in the value of European Emission Allowances (“EUA”) over the last couple of weeks. While EUA were traded at levels far above of 22 EUR/t (with a peak at 26.00 EUR/t on 30/05/2007),...