OPINIONS
- We don't need perpetual growth, Earth cannot sustain it.
- Overpopulation is turning the world into a wasteland that
will soon be fit only for robots, everything attractive
and interesting is being destroyed.
- South American people are spreading through the Amazon
rainforest like locusts, destroying every living plant
and turning the land into a desert (after one or two
crops the land is exhausted and the slashers and burners
move on). The rain forest acts a bit like blotting paper
to carry water across the continent, the rain falls,
evaporates in the heat, gets carried on, falls again etc
right across the continent, once most of the forest has
gone this cycle will stop and most of Brazil could become
like the Sahara, there will be little chance of ever
restoring it to it's former glory. The basic cause, as
with locusts, is excessive breeding leading to over-population,
it threatens to devastate the whole world. Large families
were necessary when most people died young, now they are
a disaster. South America is largely a Catholic continent
and that could be a large part of the problem. The
lunatic belief of the Catholic hierarchy that nothing
should interfere with their hypothetical God's production
of children will condemn us all to a life like that of
locusts or lemmings very soon if nothing is done to stop
the rot. I heard an interview with a Brazilian woman on a
Radio 4 program a short while ago, she lived in an area
in the north of the country currently badly affected by
drought and was having a hard time but she had nine
children, quite likely she had nine brothers and sisters
too, Chinese style birth control seems to be the only way
to solve this problem.
- The whole world will be adversely affected by what is
happening in South America but the international
community does nothing to intervene effectively. It is
essential that nation states are prevented from allowing
things to happen that are detrimental to Earth's
environment.
- In the last hundred or so years human activity has been
catastrophic for many animal species, including some of
the most attractive ones, largely due to the destruction
of their habitats. The human race has already
demonstrated it's capacity and willingness to destroy and
degrade large parts of it's own habitat for short term
benefits, there is clearly a very real risk that human
activity could have catastrophic effects on the human
race itself.
- The world is already grossly over-populated with human
beings but the total population is still rising rapidly,
particularly in the poorest countries. The world
population cannot go on rising indefinitely, if we don't
control it in a benign way ourselves it will eventually
be limited in nature's crude and cruel way, any form of
civilisation may become impossible, human life itself
could become impossible.
- It is predicted that the human population of Earth will
peak at about 10 billion, about double the present figure.
How is it going to be limited at that level and is it
sensible to allow it to rise to that level?
- It seems to be taken for granted that by the time we have
completely fouled up Earth we will have conquered Space
and will be able to find other planets to live on. The
only other body in our solar system that might possibly
be made just about habitable is Mars. (Scientists think
that by a process called terraforming, Mars could be
given an atmosphere and climate that would make life
there possible although probably not very attractive. It
is estimated that the process would take tens of
thousands of years. It starts with the production and
release of powerful greenhouse gases on the planet, this
warms the surface causing the frozen carbon dioxide at
the poles to become gas. This increases the warming
effect and releases more gases believed to be trapped in
the surface layers. I think ice below the surface melts
at some stage then bacteria are introduced to produce
oxygen and gradually a succession of more and more
complex plant life forms are introduced. Even after
completion of the process I think it is expected that
humans would have to live inside sealed, pressurised
structures and use respirators whenever they went outside.
I don't think Mars is going to provide a solution to
Earth's population problems.)
- It doesn't seem very likely that large numbers of people
will ever be able to leave our solar system and move to a
planet orbiting another star, the distances and
difficulties are so great. It may very well prove
impossible for anybody to do this. Star Trek, Star Wars
and other such stories give a false impression, they
ought to be categorised as Future Fantasy rather than
Science Fiction. The biggest obstacle to interstellar
travel could be something called the Oort Cloud, a deep (1.5
light years deep) band of debris thought to completely
surround the Sun (and similar stars probably) in all
directions and starting somewhere out beyond the orbit of
Pluto. Getting a space craft through this safely at a
reasonable speed could prove to be an insurmountable
problem. (A flake of paint can do serious damage to a
satellite orbiting the earth at about 20,000 miles an
hour. A space craft travelling at a constant 20,000 miles
a second, approx. 1/9th the speed of light, would
take over 36 earth years to reach the nearest star which
is over 4 light years away.) I have read (in an article
in Scientific American I think) that thermonuclear power
can't provide sufficient energy for an interstellar space
flight, the same source seemed to suggest that the
reaction of normal matter with anti-matter, in which all
the mass of both is turned into energy, could. Only a
tiny amount of anti-matter (a total of a few grams or
milligrams, I don't remember which) has been produced on
Earth, transiently in particle accelerators and no doubt
at great expense. I also read recently that an American
University has been given a contract to develop a storage
container for anti-matter, it is difficult to see how a
safe container for more than a very tiny amount could be
constructed from normal matter as the two substances
annihilate each other with extreme violence if they come
together. It is difficult to see how a matter/anti-matter
propulsion system can ever be developed. I don't think
warp drives, worm holes or anything else is much more
promising, it certainly isn't sensible to gamble that
these things are going to be developed. There must be
some limit to what humans can do and there must be a
possibility that it has almost been reached. We have
already developed very much further and achieved very
much more than all the species that are now extinct
managed to.
- The few areas of rainforest left are still being
destroyed at a rapid rate, it is crazy that it is allowed
to continue.
- Large parts of Brazil seem to be in serious danger of
becoming a desert similar to the Sahara just to provide a
fairly small proportion of the population of the country
with a very temporary subsistence. This isn't just
Brazil's problem, it has global implications but our
politicians stand by and do virtually nothing even though
there are known to be ways of making the forest much more
productive and able to support a larger population
without destroying it or damaging it unacceptably.
- Similarly irresponsible vandalism, dangerous to the
world's ecosystem, is going on in other places, either
because of population pressure or profiteering (from
hardwood logging for example) but it seems that nothing
will be done to stop it until it is too late.
- We should be working hard to turn existing deserts back
into productive land not creating new ones. If
terraforming Mars is a possibility then reclaiming barren
land here should be fairly easy. It is being done
successfully in some places. Yesterday I came across a
superb Atlas in the local library, leafing through it I
came across a photograph of Saudi Arabia, taken from a
spacecraft, which showed a band of farms/smallholdings on
a plateau in the middle of the desert. Apparently these
farms are possible because there is an aquifer beneath
them which contains water that has accumulated over a
very long period. The water is being used for irrigation
and is enabling Saudi Arabia to be self-sufficient in
food. The water will only last for a limited time, it
isn't being replenished at anything like the rate at
which it is being extracted, but it illustrates that food
can be produced even in the most barren and unlikely
places. There are other examples of desolate places that
have been made fertile in a sustainable way. According to
a recent article in New Scientist, satellite images
indicate that the Sahel region just south of the Sahara
has got noticeably greener over the last decade or so,
this is thought to be partly due to the introduction of
simple new farming techniques such as the introduction of
goat rearing and the slowing of water run off from the
land by means of rows of stones along the contours.
- We are letting the world be destroyed.
- It seems highly unlikely that human beings will ever be
able to reach any solar system other than the one we are
in, except in very small numbers perhaps, since the
amount of energy required to get them there in a
reasonable amount of time is so prodigious. Worm holes
and warp drives are probably just fantasies. Thousands of
species have come into existence and disappeared into
extinction without achieving the feat, there is little
reason for our fate to be any different. We have to
preserve this planet, it is the only one we are ever
likely to have.
- Back in April (2002) the BBC broadcast a weather forecast before
the 8am news that predicted a peak temperature of 104
degrees fahrenheit, it turned out to be a projection
forward to what the temperatures are expected to be in
April 2100 if nothing effective is done about global
warming. More recently we have heard of six hundred
Indians dying in a heat wave in India in temperatures up
to 49 degrees centigrade, 120.2 fahrenheit; if their
temperatures rise by the same amount as ours appear to be
expected to (104 - 74? = 30 degrees F ???) I should think
millions of Indians will die in heat waves.
- The Fat Rats have found a new way to feed their egos and
get one up on just about everybody else, take expensive
joy rides into space.
- The current, chemical reaction powered spacecraft are
hopelessly inadequate for any serious sort of space
travel.
- Another Fat Rat takes a joy ride into space to inflate
his poisonous ego even more. He tells us that Earth is
unbelievably beautiful from space. Most of us are able to
judge this for ourselves from the photographs published
in glossy magazines, we don't need to peer through the
probably not very clear window of a spacecraft. The
planet wouldn't stay beautiful for long if everybody else
was as self indulgent, the profligate waste of resources
and energy this would entail would probably destroy it.
Russian launchers used to be powered by hydrazine/nitric
acid propellant and probably still are, the products of
combustion of this deadly mixture lay waste to the area
around the launch site causing the death of farm animals,
serious sickness in the human population and the birth of
badly deformed babies. People, however rich, shouldn't be
allowed to exacerbate these problems merely to satisfy
their vanity and be one up on everybody else.
- The greed, self-indulgence and decadence of the rich are
destroying the planet.
- Some radioactive waste with a long half-life can be
converted to short half-life material by irradiation with
neutrons, thus making it easier to deal with? Has it been
established whether this can, or is likely to
significantly reduce the radioactive waste disposal
problem?
- A recent issue of Scientific American reported significant advances in
the design of nuclear reactors, largely in the direction of making them
smaller and therefore much cheaper to build, (and easier to
decommission?). Work on nuclear power station development needs to
continue, at least at a low level, in case this form of power generation
becomes essential in the not very distant future. France generates about
80% of it's electricity in nuclear power stations while we only get about
20% of ours from this source. The French standard of living is now higher
than ours, perhaps this is part of the reason (although that probably
isn't very likely).
- Commuting more than five miles to work to be forbidden?
POLICIES
Far stronger measures should be taken to reduce green-house
gas emissions and other forms of pollution and waste. These might
include:-
- The introduction of an upper limit of 1.5 (or 1.3?)
litres for the engine size of passenger cars designed for normal
use on the road. Engine sizes seem to be increasing to US
levels in Europe. This week I have read of a new 400bhp
Jaguar and a 270bhp W8 engined Volkswagen, both saloons.
Cars like these and the monster 4 wheel drive vehicles
coming on to the market are a criminally irresponsible,
self-indulgent extravagance in the current circumstances.
Most of them just poodle around no faster than a sub-mini
with just one person on board most of the time, they are
"I am more vain and irresponsible than you"
symbols.
- The use of high performance cars might be restricted to
race tracks and, perhaps, the drive between home and
track. It might also be possible to derestrict suitable
roads for a period early on Sunday mornings so that speed
freaks could get their fix.
- A priority should be given to the development of
lightweight electric vehicles for use in towns and
cities, the tonnage of metal that is being shifted around
now to move a couple of hundred pounds of human flesh and
bone is ridiculous. Hopefully, it would be possible for
these vehicles to pick up their power from conductors in
the road rather than carrying around a large weight of
batteries, fuel cells or whatever (the trams in central
London used to get their power from a slot in the road,
Scalextric style). The weight of racing cycles for events
such as the Tour de France can be less than 15 lbs now
and the riders can average over thirty miles an hour in
short time trials (25 miles) with their power output of
about 0.5HP but even the lightest cars, the Lotus Elise
or Fiat 600 say, weigh about 1500 lbs and need far more
HP. It ought to be possible to build a one adult + one (or two) child vehicle weighing less than 250 lbs with a 5 HP
motor that would be adequate for use around town, (towns
without steep hills anyway).
- Cars might be made public property so that far fewer
would be needed. One would simply grab the nearest one,
swipe one's credit card through it's meter and drive off.
The meter might communicate details of the usage to a
billing centre by radio or other means. A solution to the
problem of all the vehicles tending to collect in one or
two places would probably be necessary.
- The design of most new homes seems to be archaic, much
more energy efficient designs ought to be feasible
without the development of any startlingly new technology.
- A considerable amount of attention is being paid to wind
power generation now but it seems to be concentrated
almost entirely on wind farms on bare hill sides or at
sea. I would have thought that banks of small wind
turbines between suitably shaped tall buildings, or
possibly arranged down the corners of conventionally
shaped tall buildings could generate useful amounts of
energy and would be less of an eyesore. The power
generated could be used for heating the buildings
directly, feeding into the distribution system or for
producing hydrogen by electrolysis. It might be difficult
to achieve acceptable noise levels though. Could wind
turbines in the roofs of domestic homes be cost
efficient?
- Plastic packaging to be banned except for foodstuffs that
have to be kept in sealed containers. Even in this case,
aluminium foil should be substituted for plastic where
possible. A lot of aluminium foil (the thicker stuff used for pies,
cakes and take-away meals at least) should be recycled.
- There should be a ban on free newspapers and restrictions on advertising
that just wastes paper and the recipient's time.
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