The continuing rise in chemical production has caused a new planetary boundary to be exceeded, the fifth of nine theorised boundaries, a group of scientists estimated in a study published on Tuesday 18 January in the scientific journal Environmental Science and Technology.
These scientists point out that global chemical production has increased 50-fold since 1950 and is expected to triple again by 2050. Plastic production alone increased by 79% between 2000 and 2015, the study notes.