The CAP will continue after Brexit, albeit with somewhat less money, but will needed changes be made, particularly in terms of 'greening'? I give an overview here: https://www.europenowjournal.org/2020/11/09/the-common-agricultural-policy-an-overview/
This has attracted some attention on Twitter and I am grateful for the feedback received. One comment was that 'Seems to suggest that nitrates have been addressed by the ND....if only that were true. There is large scale non compliance with the ND standards never mind the more ambitious water framework ones.' This is a fair criticism, I simply didn't have the word budget to deal with the issue in more depth.
I should have remembered that 'many years ago the OECD “Producer Subsidy Equivalent” was renamed the “Producer Support Estimate” because not all policy transfers are subsidies but some are payments for public goods.'
'Another quibble, but not so minor: at over 30% of its budget, EU expenditure on agriculture is called "substantial", because agriculture is only 1.6% of EU GDP. Unfair comparison: the whole EU budget itself is less than 2% of EU public expenditure.' I can see where this comment is coming from and it is not without validity, but agriculture still secures a disproportionate share of the EU budget.