Select Committee on Environmental Audit Written Evidence


Memorandum submitted by the Royal Society for the Protection of Birds

SUMMARY

  1.  The expansion of biofuels poses a significant risk to biodiversity worldwide and their production and use does not guarantee greenhouse gas emissions savings. Significant emissions savings can be made from transport, however, through a combination of efficiencies and encouraging behaviour change. The RSPB is therefore calling on priority to be given to reducing emissions in transport through efficiencies and encouraging behavioural change, and for a moratorium on all new targets and support instruments for biofuels until their sustainability can be proven and GHG emission savings guaranteed.

INTRODUCTION

  2.  The RSPB considers that human-induced climate change poses the biggest long-term threat to global biodiversity. We therefore support policies and measures that reduce the anthropogenic greenhouse gas (GHG) emissions that cause climate change. The RSPB is a founder member of Stop Climate Chaos, a coalition of environment, development, faith-based and other organisations campaigning to limit climate change.

  3.  Global CO2 pollution needs to peak by 2015 and decline steeply thereafter to stay within the 2O°C average global temperature increase widely held to be the limit of "safe" global warming. To be reasonably sure of staying below the 2°C target, current scientific consensus suggests that the UK, with other developed countries, must make cuts of no less than 80% in emissions of CO2 by 2050.

  4.  Climate change and the alarming rate of biodiversity loss worldwide are the most critical environmental challenges society faces today. Policy must therefore seek to deliver for both. As a minimum, tackling one must not exacerbate the other. This is critical for all Government policy, but in particular for biofuels.

  5.  The RSPB believes that although biofuels may play a role in helping reduce the UK's greenhouse gas (GHG) emissions from transport, this can only be very limited as they require large areas of land for feedstock cultivation, which poses significant risk to the natural environment and competes with our ability to produce food.

  6.  We are deeply concerned that current biofuels policy in the UK, and particularly in the EU, is not based on robust evidence regarding the direct and indirect impacts of promoting biofuels on agricultural markets, domestic and international land use, climate change and the wider environment. There is a growing body of evidence suggesting that promoting biofuels is already having a profound and negative influence on all of these. The RSPB is therefore calling for:

    a.  A moratorium on all new biofuel targets, including the EU's proposed binding target of replacing 10% of transport fuels with biofuels, and other promotional policies.

    b.  The development of strict sustainability and greenhouse gas standards for all biofuels that benefit from existing public policy support mechanisms, such as grant schemes, obligations and tax incentives.

    c.  The establishment of a global monitoring programme on the effects of biofuels and bioenergy on the global environment and climate change.

  7.  Furthermore, biofuels should be seen and presented by Government as a small part of a wider strategy for reducing GHG emissions from transport. This strategy should prioritise the mechanisms listed below over biofuels as they guarantee GHG savings and carry a lower environmental risk:

    a.  Reducing the public's need to travel through effective planning policies and by encouraging the use of appropriate information technology.

    b.  Encouraging the use of more sustainable modes of transport through fiscal measures, such as well-to-wheel fuel taxes and road-user charging, as well as softer measures such as car clubs and travel plans.

    c.  Encouraging responsible, efficient methods of driving.

    d.  Increasing vehicle efficiency through establishing mandatory efficiency targets, appropriate fiscal regimes, consumer grants, and the provision of information to consumers that would allow informed vehicle purchase choices to be made.

  8.  The Government hopes that the RTFO will deliver GHG savings equivalent to 1 million tonnes of CO2. This is a relatively small saving compared to what can be achieved through these alternative methods. For example, an equal amount of savings could be gained through enforcing the 70mph speed limit on motorways, whilst increasing the average vehicle efficiency to 100gCO2/km would save 2.4mn tonnes of CO[2].

  9.  In addition to the risk of not meeting its objective of delivering GHG emission reductions, a biofuels policy that fails to ensure the sustainability of the sector poses significant risks to biodiversity, including:

    a.  Accelerating agricultural expansion in the tropics at the expense of natural habitats with global importance, such as rainforests and savannah. This is already the primary driver of biodiversity loss worldwide.

    b.  Replacing important habitats and land-uses in the EU and UK, such as grasslands, spring-sown crops, scrub land, marginal areas and set aside.

    c.  Simplifying the agricultural landscape through encouraging monocultures of biofuel crops, causing a loss in landscape heterogeneity and a reduction in the wildlife value of agricultural habitats.

    d.  Increasing the signal to farmers to produce, something that the decoupling of direct subsidies in 2005 had sought to reduce, and thus accelerating further agricultural intensification.

  10.  It is essential that biofuels and biofuel policy do not accelerate the destruction of globally important natural habitats. Rainforest destruction is not only a prime cause of extinctions, but is responsible for 20% of global GHG emissions. Equally important are grasslands, which are also at risk of conversion for biofuel production. The Brazilian Cerrado, for example, is one of the richest biodiversity areas in the world.

Question 1.  The environmental and climate impacts of biofuels

  11.  The principle potential positive environmental impact of biofuels are emissions savings, although these are not guaranteed. The risks, particularly to wildlife and biodiversity, are globally significant and potentially extremely serious. We do not believe that potential benefits in GHG emissions from biofuels justify unacceptable damage to biodiversity and the wider environment, particularly given the lack of guarantee for these gains. Policy to reduce emissions from transport should not seek to trade off environmental harm against benefit, but to make savings in the lowest impact way.

The potential of biofuels to provide environmental benefits

  12.  The only legitimate reason to promote biofuels is as a delivery mechanism for GHG savings. Biofuels are often referred to as "carbon neutral" because they are made from organic matter that has absorbed carbon from the atmosphere during their growth, but, in reality, they release GHGs throughout their production. There are a large number of life-cycle analysis studies of the GHG savings from biofuels. The RSPB has collated the data from a number of review studies from these analyses in Figure 1.

Figure 1

% GREENHOUSE GAS SAVINGS FROM BIOFUELS COMPARED TO FOSSIL FUEL EQUIVALENTS, NOT ACCOUNTING FOR LAND USE CHANGE


  Source:  LowCVP (2006), E4Tech (2006), Concawe, EUCar & JRC (2006)

  13.  Figure 1 demonstrates that savings are highly variable according to production pathways, ranging from significant savings to a net increase in emissions. These studies do not, however, account for the GHG impact of land use change, which has the potential to negate any savings even for biofuels produced within Europe. For example:

    a.  Conversion of grassland in Europe to biofuel production has been calculated to have a GHG payback time from 17-111 years. This is the time required for the production and use of biofuels off this land to render the original land conversion "carbon neutral".

    b.  Tropical deforestation is already responsible for 20% of global GHG emissions.

  14.  A recently published study indicates that life cycle analyses to date, including those outlined above, have significantly underestimated the emissions of nitrous oxide from the production of some biofuel crops that arise from the application of nitrogen fertilisers[3]. The study concludes that crops that require high nitrogen inputs such as maize and oilseed rape are likely to result in an increase in emissions compared to conventional fuels.

  15.  Second generation ligno-cellulosic based biofuels generally have higher emission savings and may offer some benefits to biodiversity in the UK if their expansion is managed in a way that avoids the displacement of important habitats, such as wet grassland and marginal areas, and is sympathetic to biodiversity and the wider environment. Conventional biofuels crops such as wheat and oilseed rape will not be much different in terms of their habitat value to food crops, but the biodiversity value of the two most likely sources of biomass for second generation biofuels differ significantly and are summarised below.

  16.  Short Rotation Coppice (SRC) has been found to host a generally higher density and variety of bird species than is usually seen on intensively-farmed arable land or improved grasslands, but it tends to attract a different suite of birds than open farmland as it is essentially a woodland habitat. Species of conservation concern such as skylark, lapwing and corn bunting will not do well in SRC field, but common woodland species, such as the pheasant, robin and blackbird could benefit. However, there have been no studies to date to establish the impacts of SRC plantations on bird breeding success, which may be reduced by, for example, the lack of dead wood in plantations. SRC plantations also support higher invertebrate populations than conventional crop types and, as input requirements are low, there is the potential for diverse plant communities to be supported. This information mostly comes from studies of relatively small pre-commercial SRC plantations; the impacts of a larger, commercial-scale plantations are likely to be very different.

  17.  Little is known of the potential impact that perennial grasses, including miscanthus, reed canary grass and switchgrass, could have in the UK and Europe. These are not native species, and are unlikely to be suitable habitats for open ground species, but may prove beneficial for species characteristic of reedbeds and dense herbaceous vegetation or scrub, eg reed warbler and reed bunting.

Negative environmental impacts

  18.  The negative environmental impacts of biofuels arise from their land requirements and can be grouped into the following categories: previous land use, management of crops, and scale and spatial distribution at the landscape scale.

  19.  Where biofuel demand results in biofuel feedstock production that replaces a habitat with greater wildlife value than the crop itself there will be a negative environmental impact. In the UK, valuable areas of set aside are already being lost to biofuel production. Also at risk are unimproved and wet grasslands, particularly in the Central and Eastern European Member States, which are important for a wide range of biodiversity.

  20.  Set aside land is known to provide important feeding and nesting resources for many farmland birds. In the breeding season, set aside holds relatively high densities of many bird species, compared to other arable land-use types and provides important nesting opportunities for species of high conservation concern. Recent research by Natural England and the RSPB has found that when the set-aside area was halved in the 1990s, the numbers of farmland birds also showed a serious decline[4]. In spite of this, set-aside has been reduced to 0% this year and will be phased out permanently in the CAP health check, partly driven by land demand for biofuels, with an expected negative impact on farmland biodiversity unless environmental safeguards are put in place.

  21.  The most significant natural habitats that risk being lost to biofuel production exist in tropical producer countries, particularly rainforest in Indonesia, Brazil and other South American countries, and the cerrado in Brazil. These habitats are of global importance for biodiversity and their destruction not only damages this local biodiversity, but also means a loss of ecosystem services from that land, including clean water, flood alleviation, firewood, and food for local people. They are being lost rapidly, primarily as a result of agricultural expansion. This is an increasing trend that biofuels can only exacerbate both directly, through the establishment of new plantations that replace these habitats, and indirectly through displacing other agricultural production onto these habitats.

  22.  Biofuel production also risks damaging biodiversity through further simplifying the agricultural landscape as a result of encouraging monocultures of biofuel crops, causing a loss in landscape heterogeneity, and a reduction in the wildlife value of agricultural habitats. Anecdotal evidence already suggests that oilseed rape is replacing other break crops, including beans and sugar beet. This is also likely to be of particular concern in the future for new perennial biomass crops that may be used for second-generation fuels, such as miscanthus and short rotation coppice willow. The logistics of transporting biomass will encourage block cropping within the vicinity of processing plants, creating perennial monocultures at the local or even landscape scale.

  23.  The use of land for biofuel production is also in direct competition with the use of land for biomass for heat and electricity production. Both of these offer far greater and less variable GHG emissions savings. A large uptake of land for biofuels as a result of supportive public policies could therefore mean a forfeit of emissions savings in the heat and electricity sectors.

Question 2.  The regulation of biofuels to minimise negative environmental impacts

  24.  The negative impacts of biofuels can be minimised through ensuring that the industry does not grow beyond sustainable limits and through robust and appropriate regulation, in particular through the implementation and monitoring of minimum environmental standards for all biofuels eligible for public support, including the RTFO and the 20 pence per litre tax incentive on biofuels.

  25.  The cost of reducing GHG emissions via biofuels is relatively high relative to other ways of reducing emissions in transport. Their cost of production is also high in real terms: the OECD estimates that in most cases it is approximately double that of conventional fuels, with costs increasing with the growing cost of feedstock. The biofuels market is therefore entirely created by Government through the use of a variety of incentives and at the cost of the taxpayer and consumer. The RTFO, for example, would cost £500mn/yr at the current rate of 5% substitution, and at current tax rates. We believe that this public investment justifies requirements that biofuels meet certain standards of production that ensure that significant and proven GHG emissions are delivered and that they are produced sustainably.

  26.  Government must also ensure that the level of biofuels produced and thus paid for by the public is sustainable. This means that targets for biofuels should be based on robust evidence that demonstrates they can be met sustainably. This evidence has not yet been produced and there is increasing evidence that even at relatively low levels of production biofuels are causing serious environmental damage. The RSPB is therefore calling on a moratorium on new biofuel targets and believes that the proposal by the European Council to adopt a 10% biofuel target for the EU should not be adopted.

  27.  Standards must cover the entire life-cycle of biofuels to ensure that they are effective, but should prioritise those stages where the risks are highest: the production and processing phases, which is where most environmental and biodiversity impacts are felt and where a significant proportion of GHG emissions from biofuel production are emitted.

  28.  The RSPB has been advocating minimum environmental and GHG standards for biofuels throughout the development of the RTFO. We are an active member of the Low Carbon Vehicle Partnership, and are represented on DfT's RTFO sustainability advisory group. We have worked with industry and Government to develop and promote standards but have been deeply disappointed by their failure to introduce these standards from the beginning of the RTFO (April 2008). Instead, Government have announced that companies will be required to report on sustainability and GHG emission savings with the view of introducing standards in 2011 and 2010 respectively. However, Government also announced a number of conditions that must be met before these are introduced, including compliance with World Trade Organisation (WTO) rules.

  29.  We do not believe that WTO rules will prohibit linking the RTFO to GHG emission saving requirements given that:

    a.  Climate change and the need to reduce GHG emissions is recognised in the United Nations Framework Convention on Climate Change and the Kyoto Protocol.

    b.  Standards would not be discriminatory toward non EU production.

    c.  GHG emissions savings are the explicit aim of the RTFO and the 20ppl tax incentive on biofuels. It is not suggested that failing to meet these standards would prevent trade, only that it should be a precondition to benefitting from these policy mechanisms.

  30.  This conclusion was also reached in the Government's own advice on these matters[5]. The situation is more complex with regards to sustainability standards but we remain convinced that it is possible under current WTO rules. We strongly recommend that Government takes a more proactive approach to promoting this approach within the WTO and with trading partners to ensure that we are able to introduce these standards in 2011 as promised.

  31.  Minimum standards for biofuels are technically possible now. The failure to introduce minimum standards for biofuels from the beginning of the RTFO reflects a political decision that will result in approximately 2.5 billion litres of biofuel on UK forecourts with no assurance it is not causing environmental damage.

Question 3.  International assurance of biofuels

  32.  The RSPB believes that the commodity assurance schemes, including the Roundtable on Sustainable Palm Oil, the Better Sugar Cane Initiative and the Roundtable on Sustainable Soy, as well as general assurance schemes, such as organic and Rainforest Alliance, could offer a means of delivering higher standards and accountability throughout the supply chain. We believe that the current approach used by the RTFO sustainability reporting requirement of depending on these schemes is appropriate as they have been developed by the industry and NGOs, and are practical and relevant.

  33.  We are, however, concerned that these schemes may not be able to guarantee enforcement of standards and chain-of-custody control, particularly as most of these schemes are at a very early stage of development and rely on self-regulation and monitoring.

  34.  It is also important to note that these schemes can only deal with particular farms or plantations, and that they cannot deal with the indirect environmental impacts of biofuels. There is considerable risk that certified commodities will be bought by the UK and EU, whilst uncertified and less sustainable commodities will be bought by other markets. This makes international cooperation and agreement over biofuels extremely important.

Question 4.  Biofuel technology and competition with biomass

  35.  There is a strong expectation that second generation biofuel technology will greatly increase the efficiency of biofuel production, thereby increasing the GHG savings and decreasing the land requirement. The EU's impact analysis for the proposed EU 10% biofuel target depends on second generation fuels supplying 30% of biofuels in 2020. However, there is no consensus as to how close to market second generation is. This is of great concern because ambitious targets are being announced that will be well beyond what can be produced sustainably without it being available. In their recent report[6], the OECD noted that second generation fuels are still in the demonstration phase and a long way from the market, claiming that they are still a "distant possibility". Furthermore, there remain doubts over the feasibility of biomass-based biofuels, given the logistics of producing and transporting large amounts of biomass. We therefore believe it is irresponsible to set targets and current biofuel policy based on a technology that is not yet available, especially given the risks are so high.

  36.  In spite of variations according to production pathways, there is broad consensus that biomass derived electricity and heat offers very significant emission reductions. The emissions advantages offered by electricity from biomass are shown in Table 2.

Table 2

THE CO2 EMISSIONS OF TWO ELECTRICITY PATHWAYS COMPARED TO CONVENTIONAL ELECTRICITY GENERATION


Electricity source
CO2 emissions
in g/kWhe

Modern coal
1,054
Natural gas (combined cycle)
411
Electricity from forest residues
12
Electricity from SRC
84

Source:  Bauen, Woods and Hailes (2003)


  37.  It is clear that biomass for heat and electricity offer greater and more reliable GHG emission savings than biofuels. However, it is usually argued that there are fewer options for reducing emissions in transport than there are in other sectors. A recent study[7] by the Government's advisor on transport, the Commission for Integrated Transport, has, however, found that emissions from transport could be reduced by 14% from 1990 levels through a combination of vehicle efficiency savings, eco-driving, changes in travel behaviour, efficiencies in freight transport, and including aviation in the European Emissions Trading Scheme. We do not, therefore, believe this argument to be valid, and there should be a review of the role of biofuels and biomass for heat and power given the restrictions in land availability and the GHG abatement potential of these technologies.

Questions 5 and 6.  The potential role of biofuels

  38.  The contribution biofuels can make to the UK's transport fuel needs is restricted by the availability of feedstock and, consequently, of agricultural land. The NFU estimate that 1.2 million hectares would be required to meet the 5% RTFO target from domestically grown crop, whilst another study[8] found that approximately 1.9 million hectares—or 32%—of our arable land would be needed for the EU's 5.75% target, which is likely to be increased to 10% by 2020. This must also be seen in addition to demand for biomass for heat and power production. If biomass were to provide a third of the 10% renewable electricity by 2010 target, 1.2 million ha of short rotation coppice willow and miscanthus would be required[9].

  39.  Even with set-aside coming into production and the current surplus in wheat production, it is clear that a large proportion of biofuels consumed in the UK will therefore be imported. Imported biofuels can deliver greater GHG savings but also greatly increase the risk of serious environmental damage:

    a.  The largest biofuel exporters internationally are tropical countries where agricultural expansion, primarily for the export market, is the principal driver of loss of globally important habitats, including rainforest and grasslands.

    b.  International commodity chains are long and complicated, making traceability and responsibility throughout the chain more difficult to achieve.

  40.  Furthermore, as the UK capacity to produce biofuels is severely limited in comparison to its consumption of transport fuels, and so is global production capacity. For example, the global production of vegetable oils is 146mn tonnes, compared to global use of crude oil of 4252mn tonnes. We understand, however, that there may be land that is not currently in production and could be used for biofuels without adverse environmental impact. This land is sometimes referred to as "idle land", however we are concerned that targeting biofuel development at idle land outside the UK and EU will not be possible given traceability issues in the international commodity market, and are also concerned that land-uses often referred to as idle can have exceptional biodiversity value.

  41.  Biofuels are clearly already having an impact on the market as they increase demand and compete with food. In addition to this increased demand, poor harvests in Canada, Europe and Australia this year have meant that wheat prices have jumped 110% in the past 12 months and have risen threefold since 2000. The estimate for the 2007-08 global wheat crop is 607m tonnes, but demand is forecast at 614m tonnes[10]. Global wheat inventories were at their lowest since 1979. Climate change will increase the occurrence of these extreme weather events, making future production levels more unpredictable.

  42.  A European Commission sponsored study has found that replacing 5.75% of our diesel requirements in the EU would require 192% of current production. The Commission estimate this will result in an increase in price by 8-18%. The OECD concur, concluding that "the rapid growth of the biofuels industry is likely to keep prices high and rising".

  43.  These impacts of biofuels on the food market, the restricted land available for their production and thus commodity availability globally, suggests that biofuel policy needs urgent review.

  44.  We believe that the fuel security benefits of biofuels are exaggerated for the following reasons:

    a.  Given the limited availability of feedstocks that could be grown in the UK and the EU relative to demand, much of the feedstock for biofuel production will have to be imported.

    b.  Biofuel feedstock production is heavily reliant on artificial nitrogen fertiliser, an energy-intensive product that is in turn is reliant on natural gas for its production.

  45.  Given the risks described in this consultation response, and with reference to the questions posed by the Committee, we do not believe it appropriate to encourage public procurement of biofuels.

1 October 2007






2   Commission for Integrated Transport (2007) Transport and climate change Back

3   Crutzen et al (2007) N20 release from agro-biofuel production negates global warming reduction by replacing fossil fuels Back

4   RSPB & Natural England(2007), unpublished data Back

5   E4tech (2005) Feasibility study on certification for a Renewable Transport Fuel Obligation Report for the DfT Back

6   OECD (2007) Biofuels: is the cure worse than the disease? Back

7   Commission for Integrated Transport (2007) Transport and climate change Back

8   Turley (2006) Environmental impacts of cereal and oilseed cropping and potential for biofuel production Report for the HGCA Back

9   Land Use Consultants (2007) Bioenergy in the UK Back

10   FT (2007) Wheat prices jump to record high Back


 
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