Food needs 'fundamental rethink'

BBC NEWS | Science & Environment | Food needs 'fundamental rethink'

(the following are some short excerpts from the much longer article by Mark Kinver. it's well worth reading the whole article.)

A sustainable global food system in the 21st Century needs to be built on a series of "new fundamentals", according to leading food expert, Professor Tim Lang:

• Oil and energy: "We have an entirely oil-based food economy, and yet oil is running out. The impact of that on agriculture is one of the drivers of the volatility in the world food commodity markets."
• Water scarcity: "One of the key things that I have been pushing is to get the UK government to start auditing food by water," Professor Lang said, adding that 50% of the UK's vegetables are imported, many from water-stressed nations.
• Biodiversity: "Biodiversity must not just be protected, it must be replaced and enhanced; but that is going to require a very different way growing food and using the land."
• Urbanisation: "Probably the most important thing within the social sphere. More people now live in towns than in the countryside. In which case, where do they get their food?"

Professor Lang said that in order to feed a projected nine billion people by 2050, policymakers and scientists face a fundamental challenge: how can food systems work with the planet and biodiversity, rather than raiding and pillaging it?

"We are going to have to get biodiversity into gardens and fields, and then eat it."

"We have to do this rather than saying that biodiversity is what is on the edge of the field or just outside my garden."