| |
Professor Philip
Stott is an ecologist based at the Department of Geography at the School
of Oriental and African Studies in London. Professor Stott's research
interests include biogeography and tropical ecology, as well as the role
and significance of environmentalist movements and debates.
How
easy is it to determine what causes climate change?
Climate is probably one of the most complex science issues that any scientist
has to face. It is horrifyingly difficult. We know it is governed by a
million, nay, probably a billion variables, what we will call ‘factors’,
separate factors. These range quite literally from the flip of a butterfly’s
wing to erupting volcanoes, to oceans, to the changing surface of the
earth, through the changing geometry of the earth, through natural greenhouse
gases, including the most important greenhouse gas of all, water vapour,
not CO2, right the way up through solar activity to dust, atmospheric
dust of all types, and debris, solar debris, plus also, ultimately, chaotic
effects.
The trouble with climate
is we know so little about so many factors. Even in the last 3 months
alone we have learnt of 3 factors that are not in the model. In other
words the models at the moment are still relatively primitive, despite
what they seem to have a complexity built into them. Therefore the likelihood
of pinpointing any single cause is something we should be very careful
about accepting.
Why do people believe
it’s our fault?
Every generation appears to want a myth, and therefore when we come to
look at a change in climate now, people want to explain it in terms of
human action and human faults. In other words, we always need a Noah myth,
and a Noah myth that says we have sinned. When carbon dioxide came along,
which could be seen to come from things like fossil fuel burning, it was
a gift to servicing this kind of myth. Instead of saying we have no control
over the elements, we had a feeling that we did, but it was not a benign
control it was to do with human sinfulness, human greed. And particularly
American greed, hence in Europe, where it had an even greater attraction.
So I think one of the reasons we particularly like ‘global warming’ is
that it seems to fulfil this long history of myths about human action
in relation to not just the environment but in relation to goodness and
the Garden of Eden and all the rest of it. It’s a great myth.
What we’re always
looking for is something that will show that it’s human causes, I think
it’s a desperate plea to find a human cause, when primary school physics
and science asks us to stand back, look at the fluid dynamics of the atmosphere
and say ‘my goodness me, this is just beyond comprehension’.
What do you think
about the sharp rise and spike in the temperature curve that it is claimed
has occurred over the past 10-20 years?
Firstly, it
is not exceptional. Work that is now being done by paleogeologists, those
who are looking at the ancient history of the world, there appears that
there have been massive rises in temperature over very short periods indeed,
over 10 to 100 years up to 4-5 degrees C. It’s not at all exceptional.
Secondly, is it actually happening? Measuring temperature is enormously
complicated today and I would remind people that in certain of the free
atmosphere measurements there are still measures that show cooling, small,
but cooling. What do the temperatures really reflect? In the oceans we’ve
just learnt that the figures that have been fed into the models from sea
are probably wrong in relation to free air by 40%. So the second point
about this, are we really measuring a real spike? But the most important
thing comes to a major paper of hard science produced in Nature just before
Xmas 2000. This was a magisterial piece of work, by a team under Jan Veizer.
If he is right it drives a coach and horses through the relationship between
carbon dioxide and temperature. Interestingly, that famous paper had virtually
no coverage in the European media.
In any case, we have
to remember is one simple fact – in 1200AD Europe was 2 degrees centigrade
warmer that it is today. We know that, we grew grapes, of course in England,
and in was possible even as far as Northumberland. Agriculture flourished
in Greenland. More recent work has shown that in S. Africa it was probably
3 degrees C warmer, in other parts of the world 1 degree: so in other
words, it was warmer virtually all around the world. The world did not
come to a crunching halt.
What is your opinion
of the IPCC report?
One of the things I think it is very important for the public to understand
about the IPCC report and a lot of other reports too is that they are
not reality. They are computer modelling, they are predictions based on
models of what possible climates might exist. Quite frankly there are
hundreds of them. The IPCC report relates to from about 40 to 250. Recently,
interestingly, there was one produced in India showing cooling. They range
from cooling, therefore, to extreme warming. But it’s vital to understand
that they are based on inadequate models, and I’m afraid, it’s not a criticism,
it’s simply the state of the science. And one of the big criticisms of
the IPCC that can be made is that next to its ‘scenarios’, as these models
are called, there are no risk assessments, that is, what is the likelihood
of this scenario actually happening. So we’re dealing with ideas in a
computer, not real climate.
What do you think
of the Bush administration’s decision not to ratify Kyoto?
In Europe there has been a predictable hysterical and moral outrage at
the decision of the Bush administration to withdraw from Kyoto. But we
must look very carefully at Europe’s own position – is that moral outrage
justified? The EU, which politically and militarily wants to be compared
to the US actually produces more CO2 per unit area, more CO2 per person
and more CO2 in total than the USA.. But who knows that? Moreover, out
of the 15 EU member states, only 2 are predicted to be even near to meeting
their Kyoto targets, that’s the UK and Germany. Germany, however, with
a precipitate withdrawal from nuclear energy under pressure from their
Green movements is unlikely to do so, and there are some estimates that
the UK will be 20% short. And when we come to those wonderful moral countries
of France and Sweden, that helped to scupper John Prescott’s attempts
in the Hague to get an agreement, we find they are miles off meeting their
Kyoto targets.
Kyoto agenda clearly
has allowed Europe to play a bigger role on the world stage in this particular
issue and I am sure that Europe has had its eye on running the carbon
trading agenda. It also helps them to continue to have some control over
what happens in the developing world – you must keep your rainforests,
you must allow us to plant trees here, etc. In other words, there’s a
neo-colonial element of Kyoto which Europe definitely has been wanting
to exploit.
So you disagree
with the decisions taken at Kyoto to control climate by cutting down CO2
emissions?
The idea of controlling climate is the biggest single mistake of Kyoto.
It has deflected the international eye from the way that humans have always
coped with change – hot, wet, dry or cold – and that is not through control,
in other words trying to fiddle about and try to play Gcd with climate,
but through adaptation. Just think, suppose our planners had not allowed
the building that they have allowed on flood plains. Suppose, alternatively,
that the building had built to cope with the 1000 year norms of flooding.
Most of the problems that we have seen over the last 2 years in GB wouldn’t
have happened. So we come to a very important question here – is the future
about control or adaptation? I am absolutely myself 100% convinced that
it is it is not about control, but is about adaptation, of ways of living,
of architecture, of building design and that that has to be flexible,
so that if the change turns in an unpredictable projection we are not
caught out.
We must remember change
is the norm and it is normally the poor who suffer most from change, because
they have the least ability to adapt to it. We must therefore internationally
have an agenda in financial terms and technical terms to help wherever
inequitable change takes place. We should accept that change is inequitable.
Living in GB we are very, very lucky people – we have no volcanoes, minor
earthquakes, and fundamentally despite any change a temperate climate.
In other words, we have got advantages just by the fact we happen to be
born in this geographical area over and above a country like, say, Bangladesh.
I think there’s a moral duty indeed to help on that level, but it won’t
be done through control at Kyoto, it’s got to be done through international
agendas that will with adaptation, growth and development all over the
world, wherever inequitable change takes place.
So what I would like
to see is a new language turning to flexibility and resilience, rather
than sustainability, because I think in the end that’s what wrong with
Kyoto, it’s about the idea that we can reach an equilibrium climate, a
stable climate, and I want to say 100% that is a lie.
|
|