Local food production

Up to the mid 20th Century, most people the world over consumed food which was grown with in a 100-km radius of where they lived. 

And from all accounts they lived a reasonably well. Fast forward to the 21st Century and this is no longer the case. Thanks to advancements in technology, we now regularly consume food that is not local. In fact, our food, on average today as travelled thousands of kilometres before it is on our dinner plates.