Prof Shahi kickstarted the lesson by asking: What is
so interesting about biotechnology such that many countries are investing in it
yet it is of such a small economy now? The reason is because all forms of life
shares similar building blocks. For example, the human genome is 98% similar to
that of monkeys. What is more shocking to me is that the human genome is 48%
similar to that of papaya!
According to the definition on Wikipedia:
Biotechnology is the use of
living systems and organisms to develop or make useful products, or "any
technological application that uses biological systems, living organisms or
derivatives thereof, to make or modify products or processes for specific
use". Depending on the tools and applications, it often overlaps with the
(related) fields of bioengineering and biomedical
engineering.
The food sector has the largest
composition in the global biobusiness sector, followed by healthcare and
agriculture, and biotechnology which is the smallest component.
The current global trend is that we are becoming increasingly urban, as
evident as the following graph below, due to reasons such as better
infrastructure and more job opportunities available in urban societies
comparatively to rural ones.
When societies advance from rural
to increasingly urban, there are both benefits as well as problems. Benefits
include higher literacy rates, increased accessibility and availability to
basic amenities. Problems, or rather challenges, include increase in energy
consumption, and increase in the spread of diseases due to increasing
populations and thus overcrowding. Another challenge would be due to the
increasing populations, and hence increase in demand for food consumption. How
are able to meet increasing demand with the current supply? I find the quote
discussed in class pretty relevant here. “There’s enough on this planet for
everyone’s need but not for everyone’s greed.” –Mahatma Gandhi. How are we able
to adequately feed the increasing global populations in the future? There is
apparently an urgent need to increase productivity and efficiency. These
challenges will be addressed more in-depth in the later part of my journal J
Food security: A condition where
all people, at all times, have physical and economic access to sufficient, safe
and nutritious food to meet their dietary needs and food preference for an
active and healthy life. This definition
adheres to the principle that everyone has a Right to Adequate Food, and to be
free from hunger as enshrined in the International Bill of Human Rights (UN
Economic and Social Council, 1999)
Prof Shahi screened a video titled “Norman
Borlaug Discusses Biotech Benefits” and here are the following benefits I have gathered
from it:
1. Increasing agricultural yields and saving millions from starvation
2. Green revolution: increase seedling and fertilizers
3. Reduce pesticide use
4. Reduce soil erosion
5. Saving the environment for future generations
The next video he showed us,
entitled “Sustainable agriculture and biotechnology” is a very informative one!
It basically talks about the challenges such as food and energy shortage and
how sustainability is crucial in maintaining our resources and not depleting
them for the use by the future generations.
Currently, the global population is
rising at an exponential rate, and thus putting a heavier strain on the world’s
water, food and land resources each year. Of course, sustainability is the key
to meet the demands of the current population and yet not compromise the future
generations of theirs, which also means getting more resources from the world
and reducing the carbon footprint simultaneously in an economical way.
Solutions by farmers: Agricultural
biotechnology to address food, fuel and water shortages. It is observed that
with the use of agricultural biotechnology, there is an increase in crop yields
and productivity which also means that there is increase in food for people and
feed for animals and income for farmers, all these benefits with less land by
using biotechnology. Biotech crops are also helping people meet nutritional
needs which are helpful especially in developing countries. Biotechnology can
also help farmers cope with drought, floods and monsoons since biotech crops
have higher resistance to such extreme weather conditions.
Another challenge would be the
global increase in energy use given rising populations. In 2006, US use ¼ of
global world supply of oil. We can only imagine how much more oil would be
needed in the future years. What is therefore the solution to this urgent
problem? New sources of sustainable energy. Such as Biofuels. Biofuels are derived
from high yield renewable plants that can be converted to ethanol and given
such alternative sustainable energy sources, they can meet tomorrow’s energy
needs. Overall, the more sustainable our biopractices are, the less damage to
the environment. However, Prof Shahi said that we have not reached there yet.
During the presentations that session,
a more environmentally-friendly solution to meeting the global food demand was
brought up, that is organic agriculture. It uses comparably less energy than
traditional agricultural methods, and is far more sustainable with no need of
pesticides to be used. However, it produces fewer crops on average by 25% compared
to conventional agriculture, which means organic agriculture produces less food
with the same amount of land. The presenter then brought up a question, are we
really not producing enough food?
2 answers suggested by my peers
were 1. Uneven distribution of food between the developing and the developed countries.
This is manifested in the global health scene today where there is “disease of
excess” such as obesity in places such as the United States where in other
countries, malnutrition and starvation prevails. 2. Food dumping, just to
create artificial demand so that price would maintain. Could they channel this
food to the poor instead? Self-interest of company? Government influences?
Another interesting presentation
made that day to combat shortage of food was the innovation of edible steak
made from sewage mud, which actually has high protein content. There is a
win-win situation as it is of nutritional value as well as sufficient supply of
food due to the overabundance of sewage mud. Such innovations would definitely
help in combating food shortages such as during famine worldwide.
Major concerns in
Agribiology, Environment and Industrial Science:
Agribiology:
1. Farmer to Farmist?
The concept of ‘farmist’
is growing. Farming was initially thought to be a job for the uneducated and
the unskilled but this stereotype is challenged as now, farming is seen as
something more than what it was previously before. It is now a lucrative
business option. It is a commercialized biobusiness. In countries like India
and China, where agriculture and farming constitutes a large percentage of
their countries employment, this shift in farming concept, from conventional
practices to a more technologically advanced one, will lift these countries
higher, in terms of economics and standard of living.
2. To GM or not to GM?
Genetically modified foods (GM foods, or biotech foods) are foods produced from organisms that have had specific changes
introduced into their DNA using
the methods of genetic
engineering.
Technology that
has delivered enormous benefits to people in developing countries and promises
far more.
Examples:
- Recently published
data from a seven-year study of Indian farmers show that those growing a
genetically modified crop increased their yield per acre by 24 percent and
boosted profits by 50 percent. These farmers were able to buy more food—and
food of greater nutritional value—for their families.
- To curb vitamin A
deficiency—which blinds as many as 500,000 children worldwide every year and
kills half of them—researchers have engineered Golden Rice, which produces
beta-carotene, a precursor of vitamin A.
Prof Shahi then focused
on food labelling.
Pro-mandatory labelling
Arguments:
1. “You are what you eat”. Consumers have a right to know what’s in their food, especially concerning products for which health and environmental concerns have been raised.
Anti-mandatory labelling
Arguments:
1. Labels on food made with genetically modified ingredients imply a warning about health effects, whereas no significant differences between conventional foods and GM foods have been detected. If a nutritional or allergenic difference were found in a GM food, current FDA regulations require a label to that effect.
2. Many people argue for GM labels in the name of increased consumer choice. On the contrary, such labels have limited people's options. Retailers have eliminated GM products from their shelves due to perceived consumer aversion to GM products. This drives customers away from GM food and less profits for businesses in this relation.
3. Consumers who want to buy non-GM food already have an option: to purchase certified organic foods that are labelled "100% Organic".
4. Labelling will increase food costs and hurt the livelihood of farmers.
1. Labels on food made with genetically modified ingredients imply a warning about health effects, whereas no significant differences between conventional foods and GM foods have been detected. If a nutritional or allergenic difference were found in a GM food, current FDA regulations require a label to that effect.
2. Many people argue for GM labels in the name of increased consumer choice. On the contrary, such labels have limited people's options. Retailers have eliminated GM products from their shelves due to perceived consumer aversion to GM products. This drives customers away from GM food and less profits for businesses in this relation.
3. Consumers who want to buy non-GM food already have an option: to purchase certified organic foods that are labelled "100% Organic".
4. Labelling will increase food costs and hurt the livelihood of farmers.
Environmental Life Sciences:
Waste management: Could someone’s waste be someone else’s
resource? Waste products can be burnt and recycled to be regenerated into a
variety of good output.
Overall, I would rate this session a 9/10. Really enjoyed the variety of issues covered! Looking forward to the next session after recess week :)
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