New, non-compliant emissions of ozone-depleting substances and very short-lived substances challenge the continued success of the Montreal Protocol, and, thereby, the timescale for the recovery of the ozone layer. This Review discusses recent trends in anthropogenic and natural ozone-depleting substance and very short-lived substance emissions, and examines their potential impact on atmospheric ozone concentrations.
- Martyn P. Chipperfield
- Ryan Hossaini
- Susann Tegtmeier
