By Geoffrey Lean
The Independent - UK
10-11-3
Ministers Knew Of The Environmental Dangers, But The Tests Were Designed
Not To Focus On This In truth the GM trials, whose results will be
reported on Thursday, were always more political than scientific. And
their impact - despite being the biggest experiments of their kind
conducted anywhere in the world - will be felt most in Whitehall,
Westminster and the often disconcertingly plush offices of the big
environmental pressure groups.
Their establishment, in 1999, was a political act. Michael
Meacher, the then environment minister who was already developing doubts
about the technology, pulled off a remarkably skilful coup in getting all
sides to agree to them and thus postpone the introduction of commercial GM
crops until the results were in.
At the time, several modified crops were ready to be grown
in Britain and Tony Blair would have been happy to give them the go-ahead.
But English Nature, the Government's wildlife watchdog, was raising
concerns about their effects on the environment. And a furious public row
was mounting with several newspapers - led by The Independent on Sunday -
campaigning for a delay.
Mr Meacher agrees that "the
purpose behind the tests was to buy time". But everyone gladly went
along with this. Industry and government believed that if the heat could
be taken out of the issue for a few years the public would stop worrying
and learn to love the technology.
In classic Whitehall fashion, the tests - on GM maize,
oilseed rape, and sugar beet - were fixed in a way that everyone thought
would enable the technology to pass them. Everyone knew, even then, that
the main danger to the environment from GM crops was that they would
cross-pollinate with nearby plants. So the trials were deliberately
designed not to focus on this.
Instead they looked at the effects of using different
kinds of weedkillers on the crops. Over the next three years, 283 fields
across Britain were divided in half: one side was sown with the GM crops
and sprayed with the special weedkillers which they had been bred to
resist; the other was seeded with conventional crops, and treated with the
usual herbicides.
Pro-GM ministers asserted that the
results of the trials would determine the Government's final decision on
GM agriculture. More recently ministers and the industry have begun to
be seized by the dread that it might all go horribly wrong, with
ministers stressing that the results of the tests would be just one
element in the final verdict. And so it seems to have proved.
Leaks
suggest that the results show that the weedkillers applied to two of the
GM crops - oilseed rape and sugar beet - actually did more damage to the
environment than the ones used on conventional crops. This would be a
devastating conclusion, because there is no way the farmers can change
them: the GM crops are specifically bred to tolerate them.
But
the leaks also suggest that the herbicide used on the third GM crop,
maize, was actually less damaging than the one used on its conventional
counterpart. So ministers started preparing plans to approve GM maize,
while banning or postponing modified sugar beet and oilseed rape.
This
strategy has been torpedoed by last week's EU's ban on atrazine, the
weedkiller used on conventional maize. It has long been on the danger
list, suspected of causing cancer and "gender-bender" effects. Now it
will have to be withdrawn within 12 months.
This invalidates the tests, because they no longer reflect
the real conditions under which crops will be grown. Unless they carry out
new trials with an alternative to atrazine, ministers cannot claim that
growing GM maize is safe. And, as the new chemical is likely to be more
benign, the tests would probably come down against the modified crop.
Crucial questions about controversial tests
What have the field trials done?
For
three years, scientists tested GM maize, oilseed rape and sugar beet by
measuring the impact of weedkillers for GM crops on local weeds and
wildlife, and compared it with the impact of ordinary weedkillers. They
did not look at the effect on soil or humans, or consider whether GM
genes crossed into ordinary crops.
Why do they matter?
The results, due
out on Thursday, will determine whether these crops get commercial
approval in the UK. They are expected to say that the herbicide used on
GM oilseed rape is more damaging to local wildlife than conventional
weedkillers; and that herbicide for GM maize and sugar beet could be
safer than the conventional.
What will ministers do next?
The UK's Agriculture and Environment Biotechnology
Commission will report soon on how easily GM crops can "co-exist" with
non-GM crops. It will also decide how compensation will be paid if non-GM
or organic crops are contaminated by GM genes.
Which crops are next?
Monsanto, Bayer
and Syngenta have another 20 other GM crop varieties waiting EU
approval.
What are other countries doing?
The
US and Canada have millions of acres of GM soybeans and maize. The US,
China, Mexico, India and Argentina have GM cotton.
Severin Carrell © 2003 Independent Digital (UK) Ltd
http://news.independent.co.uk/uk/environment/story.jsp?story=452413