Good luck growing cucumbers and tomatoes in the UK in February.
Just down the road from me is Thanet Earth, which is Europe's largest greenhouse and where a lot of the UK's unseasonal produce is grown. They've had to cut back production in the last six months due to the prohibitive costs of heating and lighting.
And they can't just put their prices up to cover production costs because the supermarkets won't pay them.
Obviously, in the long term, the supermarket model is unsustainable and prices will have to go up to reflect the costs of production/transport. But given that this will make some things unaffordable, perhaps it will help to drive a move back towards people buying more local, seasonal produce (currently the preserve of the farmer's market classes).
If the current problems help highlight how dysfunctional our relationship is with food, it may not be such a bad thing.