Green Chemistry Is Still Stuck With Toxic Solvents — And Nobody Knows Why

We've invented cleaner alternatives, but chemists keep reaching for the old poisonous solvents in the cabinet because they just... work better, for reasons we don't fully understand.

This means decades of "green chemistry" effort have stalled on a surprisingly basic problem: we need to understand *why* hazardous solvents are still the best option, not just wish them away.