This is in the news again and apparently being taken more seriously as climate change evidence comes rolling in. The Tyndall Centre report on this idea is a thoughtful examination of the subject:

Domestic Tradable Quotas: A policy instrument for reducing greenhouse gas emissions from energy use

We're wondering in particular about any potential impact on mortgages and would be interested in any views out there. Or is the whole idea unworkable, too expensive, inequitable?