Human made sediments on British beaches

• As much as half of some British beaches' coarse sediments consist of human-made materials such as brick, concrete, glass and industrial waste, a study has found. Climate breakdown, which has caused more frequent and destructive coastal storms, has led to an increase in these substances on beaches.*

This doesn't imply that those substance do specific harm when present in a beach, but they demonstrate the magnitude of change that humans are already causing in this early stage of climate breakdown.