Tuesday, November 23, 2010

Today's interesting fact has to do with food production.

Just before the end of the 1800's, the presindent of the British Assoication stated that England, and the rest of the civilised world, was in danger of running out of food.

Britain back then needed to import wheat, as there wasn't enough land to meet demand, considering yields were around 1.5 tonnes per hectare.

The way around the problem was the application of nitrogen fertilisers, which could more than double yields.

Guano from various islands and lands was harvested to produce these fertlisers and it was recognised that the supply of Guano would soon run out.

Fortunately for the modern world, Fritz Haber worked out how to systhesise ammonia from the air and water, which lead to the Haber-Bosh process and nitrogen fertlisers.

Over half of the nitrogen fertilisers used today are produced by this process, and without it, the human population would never have reached the levels it has today.

This need to produce nitrogen fertilisers to support our ranks may cause problems in the near future. Some esitmates, suggest that over 30% of the oil consumed today goes to producing the fertlisers required to feed the planet.

If plans to add the special nodes that contain the special nitrogen fixing bacteria to all our food plants do not come about, will the end of oil, result in starvation to humans across the planet?

This needs to be thought about by someone, because not a lot of people realise we are basically eating oil based products, as well as using it in our cars, air planes, plastics and to produce electricity.

No comments: