What actually comes out of our chimneys?
A lot of hot air is generated by and about our paper mills. There is sometimes an assumption that we’re emitting harmful substances. But that is not the case. It is almost entirely steam from the production process. The steam occurs when the paper pulp is dried to make actual paper.
To dry the pulp, we need heat. This is produced by combusting by-products such as wood chips and bark. The mills have good flue-gas treatment systems and emissions from the chimneys are very low.
With energy efficiency high on our agenda, use of fuel oil has been cut substantially. As a consequence, the past five years have seen an 80 per cent drop in sulphur emissions and a 70 per cent drop in emissions of fossil carbon dioxide.