A cargo ship is pictured at dawn in the Strait of Georgia off Vancouver, British Columbia , October 6, 2011. Wheat is the most important cereal in the world and along with rice and maize accounts for about 73% of world cereal production. Canada is the world's third largest exporter, producing annually an average of over 24 million tonnes. The world's population will reach seven billion on 31 October 2011, according to projections by the United Nations. While more people are living longer and healthier lives, says the UN, widening gaps between rich and poor mean more people than ever are vulnerable to food and water shortages. Picture taken October 6, 2011. [Photo/Agencies]

Ron Mills, grain distributor, walks beside conveyor belts that transfer wheat from trains to the cargo ships at the Alliance Grain Terminal in Vancouver, British Columbia October 6, 2011.[Photo/Agencies]