Originally Posted by
Simonsky
The only other argument against disc brake pads would be that one is marginally contributing to pollution as against particles from caliper brake pads which don't have metallic components ( perhaps some do?).
This will be a nearly infinitesimally small amount of dust. Besides, organic/resin pads for bikes exist, and are even common in consumer applications, so the amount of metallic material in an already extremely small brake pad is zero or so close to it that it would be difficult to measure.
The advances they offer to rider safety, especially where it's often wet, is likely much more relevant to daily life, at least in my opinion.