It was beset by difficulties:
- The Greens thought it didn't set sufficient targets for the reduction in carbon pollution
- The Copenhagen Conference on climate change achieved little, as many predicted, and countries have not committed to any reduction in carbon emissions
- The Coalition - Liberal and National Parties - are running a policy of denying climate change, protecting the short-term interests of big business. They, and the Greens, defeated teh CPRS Bill in the Senate, biut for the different reasons outlined above.
Voter backlash against the price rises, and manipulation of that anger by teh Coalition parties before this year's election have led to Prime Minister Rudd shelving the CPRS until at least 2012.
The shelving has nothing to do with the merits, or otherwise, of the CPRS. It has everything to do with political expediency.