. >> here in the nile delta, these field producer from half of egypt's agricultural crops. but these fertile farmland are shrinking fast as a building boom is underway. revolution,11 the the number of homes built illegally on farmland has been -- risen exponentially. egypt's population has grown by 4 million in the past three years and more people mean more houses are needed. armors say around 20% of the delta's arable land has been lost since 2011 -- farmers say around 20% of the delta's arable land has been lost. >> there has been no one to bring them to a council of course after the revolution there were a lot of complaints regarding the farmland. >> there is a law prohibiting construction on valuable agricultural land. but the government says it is almost impossible to enforce. >> it is not possible to be done by law by force. it as to be a society, --ement rather than >> egyptian farmers are also raising a water crisis. lack of both quantity and quality. this farm just outside cairo they found a solution. and adapting the traditional way of farming using innovative hyd