The other day I was thinking about the proposed manned Mars trip and trying to get my head around how to feed a number of astronauts for a 1,000 day trip in a small space craft. The thought was started while reading an article about Cosmic Rays, which are a potential threat to astronauts, but that is entirely another discussion.
Our planet today has a number of problems in being able to feed a growing population, which combined with major droughts in some parts of the world and heavy rains in others, exacerbated or caused by global warming, we are already in a situation of food crisis. If you are reading this blog, you probably don’t personally have a problem, but the problem is nevertheless there.
The first problem, which is the most difficult, is poverty. According to the World Hunger Education Service, almost 1 billion people have incomes of no more than US$1 per day. That doesn’t buy a whole lot of food.
Given the climate conditions, growth of population, finding the ground to plant sufficient crops that are not labour and water intensive is difficult and another issue is lack of certain key needs such as proteins.
One option for this going forward could be to grow food in vats. All kinds of food could be grown in vats and they have been doing this in Science Fiction books for close to 100 years. Now vegetable matter, fungus and yeast are relatvely easy, meat is a different story.
As I continued on my thread, I was thinking about chicken being one of the most popular if not the most popular meat being eaten today. The way they bread chickens in poultry farms for meat or eggs is commonly regarded as cruelty although the farmers will argue that they have little choice.
Tissue engineering is a science that has been around for quite a while. In fact if you have a child today, you already have the option of harvesting the stem cells from your baby’s umbilical cord. Cordbank in New Zealand offers cryogenic storage of your baby’s umbilicus, so that if your child ever got cancer and needed fresh stem cells, they are there and ready. The Stem Cells have your child’s exact DNA, so there are no risks of rejection if they are needed and at this stage they have no age damage. Stem cells have the inherent ability to become pretty much any human organ.
Tissue engineering has the potential to not only save lives, but also to prolong it. In future it could be used to help people recover from brain injuries and perhaps condiions such as Parkinsons Disease. It can help with regenerating heart tissue and much much more.
It can also be used to generate food. Distasteful as it may sound, I’m sure in the future if you were offered fish chunks that were made in a lab in a double blind test with real fish of the same sort, you would struggle to tell whch one was real. This isn’t Sci-Fi, it has already been achieved. One of the motives for this research was the type of space travel I mentioned at the beginning of this blog.
If you could eat nice white chicken meat that was tender and had the same texture you expected, but no chickens were mistreated or battery grown in cramped conditions, i.e. no sentience and no pain. Why wouldn’t you? If you could provide healthy food to millions of people in environments where they otherwise couldn’t get it and would suffer from malnutrition and eventually die a horrible death, why not?
I’m not sure what, if any research in tissue engineering is happening in NZ, but we have the credentials to do it and government support for biotechnology. In the medical world there is plenty happening such as the orthopaedic research at Otago University. If I’m lucky, I could live longer because of this research. I would love to see 120 or 130 years on this planet, and not vegetating in a rest home, wouldn’t you?
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