"The carbon market is now in the lap of Europe and the control of the banks," as the latest changes would discourage active involvement in the New Zealand carbon market by carbon-intensive industrial players and plantation foresters, at least until depressed global prices revived, Brunel said.
Under the ETS as originally announced, major emitters would have faced the full $25-a-tonne maximum price of carbon for every tonne of emissions, instead of the $12.50 a tonne they have faced since the scheme began in 2008.
Global CER prices have fallen below $6 a tonne since then, leading to the unexpected outcome of international units costing less than NZUs.
That will only be fixed when a glut created by distortions in the EU carbon market is removed under negotiations requiring unanimity among its 27 member states.
The prospect of such reform before 2016 was slight, meaning a four-year wait for New Zealand, Chambers said.
Chambers had argued this week's ETS decisions should have included a mandatory proportion of carbon offset purchases to incentivise carbon-reducing action in New Zealand, build a viable carbon market and give the country a source of local carbon units, akin to energy security planning.
However, Brunel said it was hard to fault the Government's logic in putting an indefinite holding pattern on the ETS's existing, so-called transitional arrangements.
"They've done a bloody good job to date with the ETS, but we thought we were turning a corner, and it's turned out there's another long straight. It's pretty gutting."