one will be in the community where juan carlos lopez is mayor. he's worried about irrigation.some 3,000 new jobs. >> we can't believe that blueberries will soon be growing here. it will be a dream come true for our impoverished community. >> peruvian blueberries fly off the supermarket shelves in europe and offer people here the chance of a more comfortable life. but while peru's economy enjoys the boost, the environment bears the burden. >> the catastrophic consequences of importing can be seen across africa. heavily subsidized veg from europe has largely replaced regional produce, at the expense of local farmers. agriculture in ghana, for example, is a struggling sector. activist alberta akosa encourages women to plant their own backyard gardens, it's economical, and their families get to eat freshly grown food. ♪ >> a crowd of women is gathering to get some gardening tips. growing fresh produce isn't hard. and the benefits are enormous. >> here in northern ghana, alberta akosa and her team are showing local women how best to create a 'backyard' vegetable garden. the small o