HK Farms collaborate with local communities to create rooftop farms in Hong Kong, The group consists of artists, designers and farmers that specifically aim to reduce the city's carbon footprint.

In Queens, New York, you will find not only a fully solar-powered art installation but also offers a community garden which provides all the benefits that a public farming co-op boasts. Believe it or not, there's even a chicken coop and a juicing station.

After finding this rich community garden in Vancouver, you'll see the power of composting. Run by the non-profit group, City Farmer, this city yard was originally developed in 1982 to demonstrate how much produce could be grown in an urban environment.

Pioneering vertical farming in 2012, VertiCrop produce is grown in special trays suspended from a track overhead, which rotates the crops through the water and nutrients they need to grow. The water and nutrients that run off the crops are then collected in order to be recycled. 

Six types of lettuce is grown under LED lighting in an area the size of four parking spaces. Run by Backyard Fresh Farms, three tonnes of produce is grown each year and is loved by some of Chicago's best chefs.

This hydroponic farm located 33m below Clapham, London, requires no soil, no natural light and water usage is 70% less than in traditional farming. This type of farming means that crops are not affected by weather and lucky locals are able to enjoy fruit and veg straight from the farm.

Robotic farming may be a little way off due to being too expensive to be scalable for business just now, but this future technology provides many environmental benefits for hydroponic farms. For instance, you can set it up closer to urban areas to reduce transportation costs and emissions.

Now this is a surprise! Located in Rotterdam in the Netherlands, this is called the Floating Farm. Housing 32 dairy cows that supply Holland with milk, the farm aims to show how farming can continue despite rising sea levels whilst also reducing resources and environment al impact.

So what do we have here? These strange looking bags are filled with used ground coffee beans donated by cafes around Paris, mixed with cardboard, wood chips and mushroom culture. Then sealed in a plastic bag they are left to incubate in the dark for two weeks. The lights are switched on, humidity reduced and the bags are cut to let the mushrooms to grow through et voila! they are then ready to be harvested.

Pioneering vertical farming in 2012, VertiCrop produce is grown in special trays suspended from a track overhead, which rotates the crops through the water and nutrients they need to grow. The water and nutrients that run off the crops are then collected in order to be recycled. 

In Belgium, Colruyt Farm successfully produces crops with efficiency and low resource usage. Crops use 20 times less space, 90% less water and 50% less nutrients required in traditional farming methods.

This rooftop mini farm, located in an industrial area of Hong Kong, opens on weekends to sell its herbs and vegetables and also offers guided tours of the plot.