There are certain environmental benefits only farmers can provide; a weakened subsidy system will dissuade their efforts
It was perhaps the most significant pre-Brexit tie between Britain and the European Union: for decades, the Common Agricultural Policy (CAP) has provided supportive subsidies to EU farmers, consuming 40% of the EU’s annual budget in the process, almost £3bn of which went to the United Kingdom each year.
CAP’s system of subsidies works to incentivise farmers to produce more food, so the EU can remain food secure, and also funds those who set aside land for environmental protection instead of cultivation. But CAP’s inability to fully deliver on its ambitious goals has made it a controversial policy, one that both bolstered and undermined Britain’s relations with the EU.
Source: Guardian Environment