Sainsbury's is the UK's third biggest supermarket chain and are primarily a food company - food accounts for over 70% of their sales. Yet they are keen to build over farmland at a time when people are increasingly concerned about how enough food will be produced for the growing populations of the future.
To the west of the country, the Sierra de Perijá, a stretch of both mountains and plains, traces the conflictive border zone between Colombia and Venezuela. The region's inhabitants are, today, a mixture of indigenous groups, cattle farmers, both rich and humble, and the inevitable generational pool of all three.
A recent report published by the charity Oxfam revealed that hill farmers work on average 80 hours a week, over double that of the average full time worker and that many farming families find themselves living below the poverty line here in the UK. The report claims that upland farmers earn between £12,600 and £8,000 a year.