Zero Waste Scotland - Don't know the result and or cost of proposal
In answer to my query I have a reply:
Iain has passed on your query about the Carbon Metric to me. Firstly, thank you for the positive feedback - it's nice to see the Carbon Metric is having an impact.
On your first point, it is difficult to say how much impact the Carbon Metric will have at this stage. As a world first, we are in unknown territory to some extent. Carbon savings will come through a stronger focus on those waste streams which have a high environmental benefit of recycling as opposed to landfill. If Scotland meets the targets it has set itself in the Zero Waste Plan, by 2025 70% of all the carbon in waste streams will be recycled. The Scottish Government has estimated that the whole Zero Waste Plan will save Scotland about 500,000 tCO2eq by 2020. Relating this to degrees of warming prevented is an inexact science and requires complex climate models so I wouldn't want to hazard a guess on the exact answer to your question.
On your second point, it is up to each Local Authority to decide how they can best meet their carbon recycling targets and this might include more segregated collection systems. You will have to contact your Local Authority if you want more details on how they plan to weigh up the relative costs and benefits of each possible waste management option open to them.
Please feel free to get in touch if you have any further questions on this issue.
Zero Waste Scotland
I think that can be fairly summarised as don't know the result and don't know the cost.