30 years on ozone hole healing is proving painfully slow. New discoveries about chemicals not covered by the Montreal protocol are raising fears that full recovery could be postponed into the 22nd century — or possibly even prevented altogether.
What if I told you the world could take one action this year that would shave off a half a degree Celsius of warming from our overheating planet? Leaders have a chance when they meet in Rwanda next month to secure a phase-down of hydrofluorocarbons (HFCs).
