Some of the most densely populated cities across the globe are tackling population growth and food shortages by establishing more rooftop farms. Vertical farms are popping up on unused rooftops in cities across the globe and the outcome is extremely positive. — DesignBuild Source

The inside of the greenhouse will be anything but ordinary. Four-metre-high stacks of growing trays on motorized conveyors will ferry plants up, down and around for watering, to capture the sun’s rays and then move them into position for an easy harvest.

The array will produce about the same amount of produce as 6.4 hectares (16 acres) of California fields, according to Christopher Ng, chief operating officer of Valcent. — vancouversun.com