Australia is now the largest producer of ginger
in the world,
it wasn't grown in Australia until
the early 20th century.
Brisbane in Queensland earlier this century.
The comparatively
high rainfall and humidity
in this area
produce conditions which are
perfect for growing ginger. So it became well
established, but in the early days
the relatively
high cost of production placed it at a
disadvantage in the market by comparison
with the much cheaper ginger produced by
other countries with lower production costs.
Then in 1941 the supply of ginger to Australia
started to run out. Remember ...
this was in
the middle of the Second World War when
everything was in short supply. This provided
the perfect opportunity for the Queensland
growers to expand their production and sales.
Five local farmers got together and formed a
cooperative association in a place called
Buderim. They started with only
25 pounds
between them. (That was in the days when
Australian currency was pounds, not dollars.)
So they set up the company with two wooden
vats and
14 tons of raw ginger, but they went
on to become the most successful ginger
farmers in the world.
In fact nearly all the world's ginger now comes
from the Buderim ginger factory in
Queensland.
40% of the production is used in
Australia and the remaining 60% is exported
overseas to places like Europe, North America,
South Africa, and even to Asia, where it
originated in the first place.
So now let's move on to looking at ways of
using ginger in the kitchen ...
DR CLARKE
INTERVIEWER
DR CLARKE
INTERVIEWER
DR CLARKE
INTERVIEWER
DR CLARKE
INTERVIEWER
DR CLARKE
INTERVIEWER
DR CLARKE
INTERVIEWER
people s minds - why do you
think that is?
Yes, in a way you're right. I think
Happening and, u ou,
WHKIIIKI
it's caused by human activity.
A greenhouse effect is, after all,
a natural phenomenon ...
Yes, as we know, naturally
occurring gases float above us,
acting as insulators that prevent
heat being radiated into space.
And the fear is that the
insulation might get thicker ...
Yes ... and
because of this, the
earth might get warmer,
The latest prediction we've
heard is that temperature will
increase by about a third of a
degree every ten years. What are
your feelings?
Well... this prediction is
difficult to make. You see the
global climate is the result of
a
web of influences. Who is to say
that a simple action such as
adding carbon dioxide to the
atmosphere will not have
several effects which might
even cancel each other out?
And I understand that the
prediction is hard to verify
whatever...
Precisely.
Why is that?
Because
the earth's temperature
surges and subsides naturally. In
fact the best way of detecting
global temperature change is to
measure the temperature of the
oceans as accurately as possible.
And this avoids the sort of
seasonal fluctuations of the
temperature of land mass.
Recording Script
DR CLARKE Yes - in fact
an understanding
of the oceans is crucial to
understanding how the global
climate works. The ocean
transports heat around the
globe. It's like a great reservoir
of heat -
a tiny change in sea
surface temperature denotes a
huge change in the amount of
heat it is storing.
INTERVIEWER And now, I understand you are
looking at ways of refining this
measurement of ocean
temperature.
DR CLARKE Yes. For a long time, we've
measured it by placing
thermometers in buoys bobbing
in the oceans and also
when
ships draw water through their
engines.
INTERVIEWER It's also been done by satellite,
hasn't it?
DR CLARKE Yes. But now data from a more
promising system is being
collected. This is the European
along-track scanning
radiometer or ATSR, a much
simpler name. The ATSR
orbits
the earth above us.
INTERVIEWER And what stage are you at with
this?
DR CLARKE Well it's been up there two and a
half years now. It's an infra-red
detector that senses
the earth's
temperature with great accuracy
and this is what we need , . , we
have to be able to separate out
random changes in
temperature.
INTERVIEWER I believe there are other
advantages as well?
DR CLARKE There are several... Every few
days
it covers the entire earth. So
it produces large quantities of
data. It measures the
temperature from two angles,
which allows correction for any
effects that the intervening
atmosphere may be having on
its readings.
Its field of view has
a width of 500km and it
measures the temperature to 0.3
degrees centigrade.
INTERVIEWER And it should go on for years?
DR CLARKE Yes.
INTERVIEWER Thank you, Dr Clarke, for
talking to us today ... and now
over to..
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