Environmental impacts of paper production
Paper manufacture
involves the use of large amounts of plant fibre, energy and water,
and causes pollution.
Recycled papers
Using recycled paper reduces the overall demand for trees grown for
pulp and the amount of chemicals, energy and water used in production.
Recycled paper with a high percentage of post-consumer waste (PCW) reduces
the quantities of waste going to landfill sites. Recycling paper has
its own negative environmental impacts due to chemicals used in the
de-inking and bleaching processes, but on balance recycled paper with
a high PCW content is the best environmental choice.
The National Recycling Forum provides information
on the major environmental accreditation schemes for paper and board
(www.recycledproducts.org.uk)
Sustainably sourced papers
Paper produced from pulp from a sustainable source means that virgin
or native forests are not destroyed for its production. Trees are grown
specifically for paper production, and new trees are planted to replace
those which are harvested. However, this does not address the problem
of monoculture and associated environmental issues, such as the use
of herbicides and pesticides.
Chlorine-free papers
When chlorine is used to bleach fibre pulp for paper, dioxins are produced.
Dioxins are extremely toxic, carcinogenic, and have been linked to reproductive
disorders and cancers in fish and animals. To address the problem of
dioxins, paper can be produced using chlorine compounds rather than
elemental chlorine, or without chlorine at all. The resulting papers
are referred to as elemental chlorine-free (ECF) and totally chlorine-free
(TCF).
Uncoated papers
Coated paper requires more energy and raw material for manufacture than
uncoated paper. Coated paper contains a filler made from calcium carbonate,
clay or other minerals, and a binder of latex, enamel or starch. Coated
papers are more difficult to recycle than uncoated papers and contain
less recyclable material per ton.