"At a London briefing, Prof McKelvey defended intensive techniques and said alternatives such as organic farming would not cope with predicted growth in population. "There is a need to continue to intensify farming. Organic farming has a place but it will never feed the growing population of the world," he said."
"Patrick Holden of the Soil Association, which promotes organic farming, said "business as usual" intensive farming would not be possible in future because of the fossil fuel costs and the greenhouse gas emissions associated with nitrogen fertilisers. Organic farming could equal and sometimes even exceed the yields of chemical intensive farming systems. "The challenge that global agriculture confronts today is to research and develop these systems, because we are on the threshold of a post-fossil fuel era.""