Here's a thread with some reflections on our task – especially the discussion of whether we are ‘compromised’ in some way by the wording of the request (spoiler: we aren’t).
I do not think @theCCCuk is constrained to look at the big issues.
The request is different (and potentially more important) to the normal cycle of advice we offer. We have been asked for advice on the appropriate UK long-term climate target. These moments don’t come along often - this is only the second time in over a decade.
Our 2008 advice is a fascinating read, not least because of the assumptions behind it
theccc.org.uk/publication/le…
Budgets being "out of scope" does not mean that we can’t advise more ACTION in the near term. There is no barrier to over-achieving against the Carbon Budgets (except that they’re very stretching of course).
See the dotted line.
We update assumptions all the time, and we already see a path to the 80% target that is beneath carbon budgets. This is exactly the job of @theCCCuk
We do not yet know Parliament's view on the long-term target. They will receive our advice on it, but there will need to be a subsequent Parliamentary process.
If and when Parliament changes the long-term target we can offer advice on carbon budgets accordingly.
We are not setting formal Carbon Budgets at the moment. Our next Carbon Budget advice is due end of 2020 (at the latest).
Remember, Carbon Budgets are a product of the long-term target itself. Long-term target set by Parliament; intermediate target-setting follows.
We just need to do a good job of it...