Among these stages, transport, processing and packaging account for the lion's share of pollutants.

CNN: Futuristic farm shop grows food in synthetic veg patch

In the 1950s, more food was purchased directly off local farms without intermediate processing, packaging and mass distribution.

FORBES: Foods With The Biggest Price Increases

The remaining 85.9 cents is accrued to industries in post-farm activities such as processing, packaging, transport, advertising and sales.

FORBES: Packaged Foods

"Because all the food in our supermarket will be grown on site we won't need a big processing factory to make packaging and we won't have to burn lots of fossil fuel to transport it across the globe, " he said.

CNN: Farm in the city could be supermarket of the future

The rest was due to processing, transport, and packaging, he said.

BBC: Britain 'running out of wheat' owing to bad weather

"It needs oil to make the fertilizer, oil for the farm, oil for the food processing, oil for the packaging and oil to transport it to the shops, " he added.

CNN: Farm in the city could be supermarket of the future

In a span of less than 24 hours, our traveling band experienced critical elements of the shea supply chain, from the picking, packaging and tracking of shea nuts enabled through SAP mobile technology in Janga Town to the processing of the nuts into butter at Gumu Shea.

FORBES: Smart Phones and Mobile Devices Create Smooth Transactions in Rugged Terrain

Another important factor in the latest round of thin vs. thick (lots more storage and processing capability) clients is that the current generation of mobile devices offer light weight attractive packaging, fast access to content (no wait for boot and application changes) and reasonable battery life (although this is an area of much needed development).

FORBES: Changing Digital Storage Requirements for Clouds and Mobile Devices