Depletion of natural
resources. Climate change. Species extinction. Overpriced energy. Pollution.
These problems, among others, are all evidence that our current way of living
is severely unsustainable. We rely so heavily on exhaustible resources to
support our world economy that we are inflicting grave damage upon our planet.
Something serious has to be done.
So what’s causing the
problem? A significant and rarely discussed factor lies in the way we operate our
world economy; specifically, the existence of a phenomenon known as forced
scarcity. An explanation: simple free market principles denote that the greater
the supply of a given product or service, the lower the price. Take supermarket
goods as an example: a product like flour is relatively cheap, because it can
be grown in vast quantities and at little cost. However, a product like
avocados costs more, because the crop is far less abundant and much more labour-intensive
to farm. In short: where profit is the motive, abundance is not desirable, so
scarcity is forced wherever possible.
We can see this
happening in the energy industry today. If
you think about it, energy is all around us: from the wind that rustles through
the trees, to the sun shining overhead and the waves lapping at our shores.
Indeed, it’s actually the most abundant resource this planet has to offer. So
why do we still use fossil fuels – a distinctly finite resource that requires
millions of years to replenish – when there seem to be so many alternatives?
The answer is profit; and seeing as the industry is driven by profit, the
environment is treated as a mere externality.
An example of these
market forces in play can be seen with the electric car. The recent surge in
popularity of hybrid and fully electric cars might have you thinking that this
is a developing technology. In reality, electric cars were built and used as
far back as the nineteenth century and were actually extremely popular. Alas,
these early vehicles were slow and could not travel far, so they were soon
replaced by petrol powered vehicles. This being said, the idea was not
forgotten, and in the late 1990s General Motors (GM) launched the EV1 – a fully
electric car with practically the same range and speed as models being released
today.
What with rising fuel
prices, this car started to become quite popular in the USA… but then the
manufacturers unexpectedly recalled and crushed every single one. Why? Well,
GM’s publically stated reason was ‘lack of demand’, but the 10 yearlong embargo
that the whole automobile industry subsequently put on the production of
electric vehicles seem so severe a measure to suggest that some other forces might
have been at play. Suffice it to say that a car that doesn’t require petrol is
not particularly profitable.
The problem goes
deeper. It goes without saying that electric cars are far more energy efficient
than their petrol powered cousins; however, they still require charging at a mains
supply – a source of energy supplied in most countries predominantly by
expensive, polluting and exhaustible fossil fuels. Indeed - from planes and
ships to lorries and trains - our entire infrastructure is powered in the same
way. Add to this the fact that more and more manufactured products are built
with plastic, which is also derived from oil, and it doesn’t take a push to see
just how addicted we are to these substances. Sadly, like with any other
addiction, the consequences will be debilitating and potentially fatal.
The main barrier to
progress in the fields of energy and infrastructure is investment. Incredible
technology exists today to vastly improve our energy efficiency, quality of
life and success as a species altogether. Like with the electric car, the ideas have
either been around for years, or simply require the time and capital to be
properly developed. There’s just one problem – where’s all the money going to
come from?
That’s a good
question. As discussed above, we can’t look to multinational corporations,
because profit is their overarching motive and an abundance of energy would
create astonishingly low prices. We
can’t look to governments, because most of the world’s countries are in
billions of dollars of debt, so there simply isn’t enough readily available
capital.
So what can we do?
Well, as long as we allow fossil fuels to dominate the energy industry, there
really isn’t much. Small inroads are being made both in the UK and abroad to
promote clean energy – but it simply isn’t enough. The only option is for the
governments of the world to agree together to implement a programme that will
phase out the use of non-renewable energy forever. This might be entirely
counter-intuitive to our global system of a profit-driven economy, but it’s
fast becoming our only hope for truly positive progress.
Below are some
examples of what we could achieve, were we not so stunted by this exhausting
dependence on fossil fuels and careless strife for profit.
Solar
Roadways
This multi-faceted
renewable energy solution is the brainchild of partners Julie and Scott Brusaw.
The idea is simple, but ingenious: replace the entire road system with computer
controlled solar panels. The main benefit of this would be the huge exposure
created for collecting solar energy, but many other positives come in to play
as well; for example, inbuilt Light Emitting Diodes (LEDs) powered by the
panels would eliminate the need for street lights, road markings and most road
signs. These would be controlled by prefabricated micro-processing chips,
allowing for further benefits, such as pinpoint tracking, inbuilt intelligent
motion sensors that alter the road’s LED display when an upcoming obstacle is
detected and thermo sensors that turn on prefabricated heating elements to melt
away surface snow and ice.
All this technology
would be encased in a material specifically designed to withstand the huge
loads. It would also be possible to house other infrastructure in this casing,
such as communication and electrical lines, removing the need for overhead
pylons. The project has been taken very seriously: thus far, the US Federal
government has awarded the company $850,000 for research. Unfortunately, this
is but a tiny dent into the investment required for true progress.
Maglev
Trains
Instead of wheels and
tracks, these trains use magnetic levitation to propel the vehicle forwards,
achieving super-fast speeds unrivalled by conventional methods. This is not
science fiction: the Japanese ‘Bullet Train’ uses maglev technology today, and
the science behind it is actually very simple. Ever played around with a couple
of fridge magnets, sticking them together and pushing them apart, as if by
magic? Well, that’s basically it. Firstly, the undercarriage of the train and
the guidelines of the track are electromagnetically charged to the same pole,
resulting in repulsion. This means that the two do not actually touch -
instead, the carriage levitates a couple of inches above the rails. Secondly,
propulsion is then achieved by charging a secondary rail just ahead of the
carriage to the opposite pole, hence attracting the train forwards.
Because this system
is frictionless and requires no moving parts, reliability and energy efficiency
are high; indeed, the only factor that increases energy consumption is air
resistance as the train moves forward. This hurdle can also be overcome:
patents exist today for a system of running maglev trains through an evacuated
tube, hence eliminating the slow-down factor of air resistance, enabling
phenomenal energy efficiency, and speeds of over 1000mph. This kind of
transport would reduce the journey time between London and Tokyo to under four
hours.
Geothermal
Energy
Using a process known
as ‘heat mining’, this form of energy is derived from the natural heat present
in the earth’s outer core. Beneath the crust, natural water deposits are heated
by the planet’s molten core to temperatures in excess of 200oC. A
shaft is drilled down hundreds of meters to where these deposits exist, and the
water is pumped to the surface, where it converts into steam and is used to
power turbines to produce energy. Finally, the steam is condensed again into
water, and returned to the earth’s core to be heated once more and eventually
reused. Utilising the right technology, this process emits but a fraction of
the emissions created by burning fossil fuels, and it’s also practically
inexhaustible.
A study conducted by
the Massachusetts Institute of Technology in 2006 concluded that around 2000
zettajoules (two trillion quadrillion joules) of energy is easily available
using this process of heat mining. To put this into perspective, the whole
world uses just one half of a zeta joule per year, meaning that geothermal
energy alone could satisfy the world’s current requirements for approximately
4000 years. Regrettably, a meagre 20 countries around the world currently
utilise geothermal energy, of which Iceland is the current champion, deriving
30% of their national energy production from this source.