Select Committee on Environmental Audit Minutes of Evidence


Annex B

PACKAGING WASTE AND BIODEGRADABLE PLASTICS

  1.  The EC Directive on Packaging and Packaging Waste (94/62/EC) came into force in 1994.  The Directive required at least 50% of packaging waste, by weight, to be recovered by 2001, at least half of which must be recycled, with a 15% minimum recycling per material. Parts of the Directive, including the recovery and recycling targets, were implemented in Great Britain through "The Producer Responsibility Obligations (Packaging Waste) Regulations 1997" ("the packaging Regulations") which came into force on 6 March 1997; parallel Regulations were made in Northern Ireland.

  2.  A business is obligated under the packaging Regulations if it has a turnover of more than £2 million pounds in its last audited accounts, and if it handled more than 50 tonnes of packaging or packaging material in the previous calendar year. The obligated business must take reasonable steps to recover and recycle a specified tonnage of packaging waste each year. The business must also register with the Environment Agency or the Scottish Environment Protection Agency, and certify annually to the relevant agency that the required tonnages of packaging waste have been recovered and recycled.

  3.  Although the Government cannot impose a legal limit on the amount or type of packaging a producer chooses for his product, (eg, plastic for plastic bags) the packaging Regulations do include incentives for businesses to minimise the amount of packaging they use because where they reduce the amount of packaging used they will also reduce their costs of complying with their obligation. As a result, since the packaging Regulations came into force many shops, particularly supermarkets have introduced the "bag for life", with a view to using less plastic and getting more back for recycling.

  4.  Packaging regulations also address the fact that consumer education and awareness has an important part to play in reducing packaging and increasing recycling. The "consumer information obligations" in the Regulations require businesses whose main activity is "selling" (eg retailers), to provide specific information to consumers. This information, relates, for example, to the return, collection and recovery systems that are available to them, and what the consumer's role can be in contributing to increased reuse of packaging and increased recovery and recycling of packaging waste. While the Regulations have clearly had an effect on plastic bag usage, and the new tightened version will continue to ratchet up that effect, this approach suffers from a lack of visibility and direct relationship to the litter and nuisance problems caused by plastic bags.

  5.  Currently, the packaging Directive is being revised with a view to introducing new recovery and recycling targets for the next five-year period—the deadline to be either 2006 or 2008. The quantity of plastic packaging waste that is recycled will have to increase to meet these targets. It is expected that from around 2005-06, inroads will have to be made on plastic packaging waste from the household waste stream.

BIO-DEGRADABLE PLASTIC

  6.  The majority of degradable plastics available to the market today are based on conventional plastics prepared from mineral oil. They contain additives that cause the plastic to break down under the action of sunlight, temperature or mechanical stress. Once the physical degradation starts the material is then open to biodegradation when placed in a suitable environment eg a compost heap. So these materials are both degradable and biodegradable. The degradation products are carbon dioxide and water, so no biomass is produced.

  7.  There is probably a wide range of niche products and applications, for example in agriculture and horticulture, marine and packaging applications where degradability would be a benefit when considering disposal options. However, it is not clear that this approach is a sustainable answer to the general problem of managing plastics waste.

  8.  While the advantages of the ability of certain types of plastic products to biodegrade on disposal may appear be to immediately obvious, the waste strategy for England and Wales, Waste Strategy 2000, emphasises the need to gain more value from waste through re-use, recycling, composting and the recovery of energy. Most degradable plastics, which are specifically designed for disposal, with no beneficial recovery potential, run counter to this approach.

  9.  The concept of a biodegradable plastic concedes that a resource (in this case the mineral oil from which the bulk of plastics are manufactured) will be deliberately and totally lost. Since plastics are manufactured from a fossil fuel resource, there is a release of carbon dioxide from the decomposition of a degradable formulation. Public response to biodegradable products may also become an issue. People may actually be encouraged to dispose of biodegradable plastic products in an irresponsible manner, believing it doesn't matter because the litter will disappear.

  10.  However the Government does support the development of biodegradable plastics from non-fossil sources. The Government Industry Forum on Non-Food Uses of Crops was set up in March 2001 to provide strategic advice to Government and industry on the development of non-food uses of crops. The Forum has examined the UK potential to produce compostable packaging materials from mainstream agricultural crops and has concluded that there is a clear opportunity for both UK agriculture and industry to develop these materials. The Forum is developing a series of recommendations designed to encourage industry to respond and develop to supply an expanding market. A number of companies are bringing plastic type products made from corn or potato starch to the market.


 
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