"Planetary boundaries is a concept highlighting human-caused perturbations of Earth systems [...] The framework is based on scientific evidence that human actions, especially those of industrialized societies since the Industrial Revolution, have become the main driver of global environmental change. According to the framework, "transgressing one or more planetary boundaries may be deleterious or even catastrophic due to the risk of crossing thresholds that will trigger non-linear, abrupt environmental change within continental-scale to planetary-scale systems."[2]"
The first sentence suggests that the study's authors are concerned that PFAS and its similar cousins represent a non-linear, large-scale environmental threat.
https://en.wikipedia.org/wiki/Planetary_boundaries
The first sentence suggests that the study's authors are concerned that PFAS and its similar cousins represent a non-linear, large-scale environmental threat.