Last year ozone depletion, one of the nine planetary boundaries, remained within the safe operating level, with global concentration average put at 285 to 286 Dobson Units (DU), above the safe limit at 277 DU, a less than five percent reduction from the pre-industrial level of 290 DU.
Breached Boundaries: Ocean Acidification…
Last year ozone depletion, one of the nine planetary boundaries, remained within the safe operating level, with global concentration average put at 285 to 286 Dobson Units (DU), above the safe limit at 277 DU, a less than five percent reduction from the pre-industrial level of 290 DU.