ROBERT BROOK / SCIENCE PHOTO LIBRARY ROBERT BROOK / SCIENCE PHOTO LIBRARY
Paper recycling. Bales of paper waiting to be recycled. Low-grade recycling will produce paper of low quality or cardboard. High-grade recycling cleans the paper and whitens it using bleach. This is considered to be less environmentally friendly than obtaining paper from trees in sustainable forests. Photographed in Purfleet, Essex, England.
Model release not required. Property release not required.