Risk
management and safety
89. The risks involved
in genetic modification can, we believe, be controlled, if a strict
risk management process is in place. Such a process includes hazard
identification, risk assessment, procedures to minimise risk and
systems for disaster management. In examining these issues, we
first questioned whether the current regulatory approach was appropriate.
THE RISKS ARE NOT UNIQUE
TO GENETIC MODIFICATION
90. In much of the
evidence we received, witnesses did not distinguish between risks
inherent in or particular to the new technology and risks present
in standard agricultural practice, when most of the processes
used in agriculture may face the same criticisms as those levelled
against the agricultural systems produced by the new technology.
Genetically modified organisms therefore need to be placed in
the context of their agricultural use. Risk assessment is inadequate
if it considers a crop in isolation. In assessing risk, we recommend
that modified plants and their management schedules[131]
should be compared to the use of a similar non-modified crop and
best agricultural practice. The comparison should take account
of the chemical usage and agricultural practice involved in growing
both crops. For example, any negative effects of a pest resistant
crop must be weighed against the use of the conventional pesticides
on a conventional crop. It is encouraging to see that this is
to be the approach taken by the Pesticides Safety Directorate
(Q 603).
91. Some countries have
adopted systems which consider the risks associated with the introduction
of new varieties of crop plants into the environment. The Canadian
regulations are not specific to GMOs and evaluations "are
conducted on the basis of the unique characteristics of each product
rather than the method of production. All plants with novel traits
are assessed for possible impacts on the environment based on
the specific modification and the biology of the plant" (p
300). While favouring the Canadian approach, we recognise that
it is unlikely to secure acceptance in Europe. We recommend however
that there should be triggers other than genetic modification
which bring the assessment and management system into action,
as is the case for novel foods. We recommend
that, from now on, any crop with novel traits (or novel to a particular
environment) which may have the potential to impact significantly
on the environment should be subject to an oversight system. For
example, conventionally bred herbicide tolerant crops are currently
not subject to a monitoring programme. We consider that they should
be subject to the same monitoring under the same systems as a
GM herbicide tolerant crop.
RISK ASSESSMENT
92. The risk posed to
the environment by every genetically modified plant is assessed
before it is released. Normally, the assessment attempts to quantify
risk and therefore, if necessary, enables risk management to minimise
the impact on the environment. There are however differences in
understanding of what constitutes risk amongst the Member States
of the Community and as to what is and is not a valid risk assessment
consideration (Green Alliance, pp 72-3; Dr Gliddon, p 340). Professor
James called for an agreement (at EC level) on acceptable risk
relating to GMOs (Q 672). Until this was resolved, there could
be little progress with consensus. We agree. In this
respect, the Commission's attempt to define risk assessment principles
is a much-needed part of the revised Directive. If approvals are
to remain Community-wide, there must be a recognised standard
as to what constitutes an unacceptable effect of a release.
93. The principles of
risk assessment identified in the draft Directive were however
seen to be unacceptable by some witnesses. While agreeing that
the principles and their application need to be standardised,
the proposals were not seen as meeting the requirements for scientific
evaluation, the needs of industry or the concerns of the public.
Professor Williamson believed that the annexes which attempt to
define the principles and information requirements "are so
hopeless that they should start again from scratch" (Q 531).
Dr Gliddon suggested that annexes II and III of the draft Directive
"should be structured so that they can be directly related
to the definition of the actual hazards related to the application".
In addition he recommended that "a new annex III that is
specific for multi-location, large scale marketing applications
should be elaborated" (p 341). He also criticised the annexes
for not providing a clear link between the information required
and the risk analysis that follows. A clear, coherent set of
principles for environmental impact analysis is needed which allows
for consistent interpretation by Member States. The annexes must
be redrafted in order to ensure that the principles underlying
the impact analysis have the widest possible acceptance.
INDIRECT AND CUMULATIVE
EFFECTS
94. The greatest present
gap in the risk assessment as practised by the EC and United Kingdom
today is that there is inadequate consideration of indirect and
cumulative effects (Green Alliance, p 72; CWS, p 310). This is
more important when considering licensing for commercial use than
for trial releases, as the latter involves a particular experiment
in a particular location (DETR, p 187). We recommend that risk
assessment procedures should consider the ecological effects which
arise from the inclusion of herbicide tolerance and pest resistance
into crops (SNCAs, p 318), as well as the changes that are likely
to arise as further variants of major crops become available.
Major changes to crop management, which might include alterations
to normal rotation schedules, may have an impact on the environment
which need consideration when assessing risk. The issues of the
super weed, multiple tolerances, pest resistance and indirect
agricultural and ecological effects could conceivably become problems
if indirect and cumulative effects remain outside the scope of
risk assessments. We recommend that, as proposed, the risk assessment
should include direct, indirect, immediate and delayed effects,
but the manner in which risk assessment is related to impacts
on biodiversity, sustainable development, agronomic and conventional
agricultural practice must be clarified (Dr von Schomberg, p 404).
95. Once a crop has been
approved for commercial release it forms part of the environment
and risk assessments for the introduction of subsequent crops
have to take its presence into account. Thus, in considering the
potential environmental impact of a crop modified to tolerate
a herbicide, the risk assessment must take into account the environment,
including other sexually compatible herbicide resistant plants.
We recommend that a regulatory system which attempted to predict
interactions of this sort and attempted to identify an integrated
approach would be preferable to what amounts to a first come,
first served approach. At the simplest level, guidelines could
be set as to which herbicide tolerances might be incorporated
into which crops, for example herbicide x into wheats and herbicide
y into oilseed rapes. This would enable effects on, for example,
rotation sequences to be anticipated and planned.
UNCERTAINTIES AND THE PRECAUTIONARY
PRINCIPLE
96. Thorough though it
may be, risk assessment is but the first part of the process.
Although it is possible to identify in a qualitative manner many
of the hazards which might result from the use of GMOs, Dr Gliddon
noted that it was difficult to quantify their impact (p 342) and
there were strong calls for risk management procedures to acknowledge
the inherent uncertainties (CA, p 52; Green Alliance, p 74). The
Consumers' Association was critical when commenting on the methods
used for managing risks, arguing that there are limitations to
our scientific knowledge which mean "we do not always know
what we do not know". While scientific advice is an essential
part of the decision making process, it has limitations which
mean that "it is not always sufficiently developed to be
the sole basis for decisions" (p 52). The impact of new organisms
released into an ecosystem can follow so many paths that scientists
can only rely on judgmental analysis and on reasoning by analogy
(Greenpeace, p 33). Professor Williamson provided us with a number
of examples of introductions into similar environments that had
substantially different impacts (p 213; Q 533).
97. The Directive has
been seen as the first attempt to implement the precautionary
principle[132] in regulation
(Dr von Schomberg, pp 401-2). The United Kingdom has interpreted
the principle to mean that a "step-by-step" and "case-by-case"
approach should be taken when releasing genetically modified organisms
into the environment. The Minister for the Environment (Mr Meacher)
illustrated this by saying that "practical evidence on safety"
was required before deciding whether to allow a commercial release
(Q 603). Professor James and Dr Chesson were however concerned
that the principle might be taken to an extreme and become an
excuse for inaction (Q 669). It is recognised that the data on
which to base a risk assessment is not available purely from laboratory
experiments and thus in many cases a limited environmental release
is needed in order to gather information so as to decide on the
safety of subsequent, larger-scale releases. The precautionary
principle is meant to be implemented in the United Kingdom (DETR,
Q448; CA p 50), but its step-by-step approach can only work if
the results of each trial release are used to identify safety
procedures for (or the inherent safety of) subsequent experiments
and if uncertainties are acknowledged (Green Alliance p 73). In
the same way as common principles are being agreed for risk assessment,
the Community should try to agree an understanding of the precautionary
principle, lest it become an excuse for inaction and nothing be
allowed to proceed. The result should be a clear understanding
of a step-by-step, case-by-case approach.
IS A MORATORIUM NEEDED?
98. The initial focus
on herbicide tolerance and pest resistance, both of which have
potential environmental impacts, has been seen by many as sufficient
to justify a moratorium on commercial releases into the environment
until the issues have been researched and clarified (SNCAs, p
319). Trial releases are designed to minimise risk and therefore
do not generally provide enough information on ecological or agricultural
disruption to be useful for identifying risks to the environment
of larger scale, uncontrolled releases (as with commercial exploitation)
even if monitoring was required. Professor Beringer considered
that trial releases tell us that the plant is growing properly,
but provide little evidence as to ecological behaviour (Q 9; also
Professor Williamson, Q 505). Plant variety registration trials
ensure that the plant is uniform and stable, but remain too small
to provide data on the environmental impact of the introduction.
Professor Williamson suggested that the data could only be obtained
through the monitoring of large scale releases conducted on a
commercial scale (QQ 507-9) (see also paragraph 98). Professor
Bainbridge was opposed to a moratorium on the grounds that what
was needed was more research, not a halt to it; that it was possible
that the end of a moratorium would never be triggered; that we
had to be mindful of competitiveness; and that a moratorium could
not be enforced globally (Q 716). We agree with those witnesses
who said that large-scale trials were necessary[133].
The knowledge of how a crop grown on farm and commercial scales
will interact with the environment can only be acquired by growing
it on such scales. We consider that an outright moratorium would
be inappropriate.
99. The Government now
appear to have reached agreement with the industry on a way forward.
Herbicide tolerant crops are to be put on trial on a "farm-scale"
basis prior to making them available for widespread use and research
is to be conducted into the agricultural system which results
from their use (Mr Meacher and Mr Rooker, Q 603). The time-scale
for the farm-scale trials is unlikely to cause much additional
delay to the commercial exploitation of GM crops as EC marketing
approvals and commercial availability of suitable varieties and
seed would, in the normal course of events, be unlikely to enable
them to be used sooner. If all proceeds according to plan, this
is a satisfactory solution, even in relation to pest-resistant
plants which are to be subject to a three year restraint. We must
however be sure to avoid any unnecessary delay which might jeopardise
the position of our farming industry. Additionally, detailed
targets must be set for what is to be achieved during this period
and the appropriate research must thus be commissioned at the
earliest opportunity. Such a period loses its utility if such
objectives are not set.
COMMERCIAL RELEASES
100. The draft Directive
provides the means to approve commercial releases subject to conditions;
in particular, modified crops would have to be monitored for direct
and indirect effects on the environment. We welcome the ability
to set specific conditions for each release. The Community should
set any compulsory conditions and these should then be able to
be strengthened by Member States if desired[134].
This facility can also be envisaged as a way to gather the fullest
environmental data while allowing commercial releases to proceed
faster than has occurred to date.
101. We are however
concerned that the draft Directive does not envisage an end-point
at which the GM crop is considered safe enough to be released
into the environment without such constraints (though perhaps
with certain management conditions[135])
(see also Seven year consents, paragraph 170). After an initial,
monitored commercial release, the product (if judged to be safe)
should be granted an open-ended commercial licence, subject only
to any necessary management conditions and the requirement to
inform the competent authority of any data which requires a change
to the environmental assessment. Additionally, many future modifications
(such as soya with altered oil properties) may not have the environmental
implications of herbicide tolerant and pest resistant crops and,
subject to satisfactory trials, should be able to bypass the initial
form of commercial release and be placed on the market without
restriction. This is especially important as, if it is
felt necessary to set conditions for every release, it is possible
that cases of genuine concern will not be discerned from others.
MONITORING
102. The statutory nature
conservation agencies recommended statutory monitoring until there
was clear evidence that GMO systems were viable, safe and sustainable
(p 318). Novartis commented that the absence of rules for monitoring
after commercialisation is a major current flaw. "There is
a broad consensus in the field that good monitoring makes good
business sense as well as being environmentally sound" (pp
372-3). The draft Directive requires applicants to provide a detailed
plan for monitoring to include "direct, indirect, immediate
or delayed effects on human health and/or the environment"[136].
Monitoring is not a substitute for risk assessment but can
complement it. We consider that those involved should report on
any predicted effects which do not occur and any unexpected events
which do occur. For trial releases, nil returns should also be
required, so that those monitoring have the fullest information
possible. The permit-holder must be reminded that any information
which might modify a risk assessment and risk management requires
a modification of the consent and that they must inform the regulatory
authorities. We are concerned that the Directive's recommendation
is for the applicant (the seed company) to perform the monitoring,
without the intervention of any outside body, whether as monitor
or auditor[137].
We recommend that monitoring (to Community-wide
standards) should be performed by an independent organisation,
funded through levies on applicants. If a dedicated monitoring
organisation is not to be established, the tender might be given
by Member State governments to universities. There must also be
a Community-wide audit of enforcement as monitoring standards
(in many fields) have in the past been subject to too great a
variation.
103. While detailed monitoring as proposed
is appropriate and feasible for trial releases and probably for
the initial phase of commercial releases (along the lines indicated
by Mr Meacher (QQ 611-12)), where full commercialisation is concerned
the product is presumably already judged to be stable and safe
and large geographic areas are likely to be involved. At this
point, farmers are in a good position to notice the unusual and
problematic, but they would need much agronomic and ecological
assistance, particularly on what to look for, how to report and
to whom, especially where they are asked to note the impact of
their crops on the non-agricultural environment. Those involved
in setting up these structures could learn from the approach adopted
throughout the world to monitoring pharmaceuticals, the adverse
reaction reporting system[138],
whereby doctors[139]
report perceived adverse reactions in patients. In the United
Kingdom, these reports are then investigated and corroboration
is sought from the General Practice Research Database. Supervision,
for GMOs at present conducted by the HSE, would also be necessary
as the system should not be solely dependent on spontaneous response.
In any event, it would be irresponsible
to require monitoring without first considering the consequences
and structures which need to be in place, or without setting specific,
measurable objectives. An absence of adverse results, through
the use of very few (or inappropriate) indicators, is likely
to breed false confidence that nothing is wrong.
104. Everyone acknowledges
the importance of monitoring, but it is a costly exercise. If
the cost of monitoring is to be borne by the agro-chemical/seed
companies, (who are but one part of the chain which benefits from
genetic modification) it must be done responsibly and even-handedly.
Professor Bainbridge considered that, while erring on the side
of caution, we had to be mindful of issues such as industrial
competitiveness (QQ 673, 716) (see also paragraph 171).
CONDITIONS ATTACHED TO RELEASES
105. Conditions and
regulations should only be imposed where necessary, that is, consistent
with the precautionary approach, but must be adhered to when imposed[140].
We should remember that, as well as dealing with the regulation
of a new technology, we are dealing with products dependent on
commercial success. It is likely however that each type of modification
(for example herbicide tolerance) will need to be subject to general
conditions as to its handling and that each particular crop may
require some specific conditions dependent on its characteristics.
106. The general conditions
may best be established through a (preferably pan-European[141])
government-sponsored code of practice. Farmers and industry are
in need of comprehensive, standardised guidance as to how to handle
GM from seed sack to shop shelf. Such a code needs to embrace,
amongst other things, buffer zones[142]
between crops, the use of non-selective herbicides (perhaps once
in a given crop rotation), rotation sequences[143],
refuges[144]
of non-GM or untreated crops, geographic zoning[145],
farm saved seed and (if required) traceability[146].
Finally, the code should include a plan for recovery in relevant
situations.
107. The Government's
approach has been to urge biotechnology's proponents (in the form
of SCIMAC[147]) to
prepare a code and then the Government will assess the finished
product to see whether it meets their approval (QQ 603-4). Professor
James argued that all sides of the debate needed to be involved
(Q 669). We welcome the work being undertaken by SCIMAC to
deliver a code with the support of Government. The statutory nature
conservation agencies and other groups should certainly be involved
as the code is unlikely to command authority unless it is agreed
by all sides in the debate. It may be the case in this
instance that a voluntary code of practice will not be sufficient;
if so, current practice in relation to pesticides (a code of practice
backed-up by regulation) should be adopted.
PRODUCT LEGISLATION
108. The DETR was concerned
at the Commission's intention to remove from the scope of the
Directive trial releases where the product is covered by product-specific
legislation (Dr Smith, Q 435). Professor James was also concerned
that the move to product legislation could result, at Community
level, in issues falling between the gaps of committees' remits
(Q 663). Dr Chesson recommended a one stop process whereby a composite
committee responded to all the different pieces of vertical legislation
(Q 663). We share these concerns. Trial food crops are not
food, and it is their impact on the environment that is important
rather than their qualities as a food. Each product must be considered
within the terms of the most appropriate legislation, and for
products under development released into the environment this
is the appropriate legislation. For commercial releases, however,
product legislation is indeed more appropriate, provided that
there is a comparable risk assessment and management process.
131 Any conditions attached to the release and the
general principles for handling a particular variety of modification.
See paragraphs 105-106. Back
132 See paragraphs 41-42. Back
133 This is particularly the case to identify any effects of the modification
which remain unobserved following the laboratory to trial release
stages (see paragraphs 11 and 19). Back
134 For example, due to particular environmental sensitivities. Back
135 See paragraphs 105-107. Back
136 Proposed revision of 90/220/EEC, Article 11.2d and Annex VII. Back
137 Professor Bainbridge argued that monitoring without independence
would not gain consumer acceptance (Q 726). Back
138 Run by the Post Licensing Division of the Medicines Control Agency. Back
139 The pharmaceutical companies themselves are not in a position
to monitor as they do not have the same access to field data.
They are, however, under an obligation to collate world information
on their products and submit it to the competent authority within
15 days. Back
140 We understand that some prosecutions may be imminent for breaches
of consent, and support this enforcement. Back
141 Lest any aspect of the resultant code be considered in restraint
of trade. Back
142 The distance between a GM and the next crop to ensure low pollen
transfer rates. This issue is but one example of the complexity
of the issues which must be considered before products reach the
market. The distance of the buffer zones must be determined, as
must which crops may be grown in what proximity to each other
and how to resolve disputes between farmers. What level of genetic
transfer constitutes pollution must also be determined. Should
the level of certified seed purity (95 per cent.) be acceptable
in the field or is this inadequate where value-added crops with
highly specific products are concerned? Back
143 The order in which GM crops can be planted. Back
144 In relation, for example, to pest resistant crops, the area of
the field which should be planted with non GM crop to slow down
the development of resistance. Back
145 Whereby, for definite reasons, use of a modified crop is restricted
to a Member State or area of a Member State. Zoning is already
in operation for conventional crops in the United Kingdom, for
example the separation of conventional rape from high erucic acid
oilseed rape is guided by the Essex Seed Zoning Committee. Back
146 See also paragraph 117.). Back
147 The Supply Chain Initiative on Modified Agricultural Crops. The
body's membership includes the NFU, BSPB, British Agrochemicals'
Association, UK Agricultural Supply Trade Association and the
British Sugar Beet Seed Producers' Association. Back
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