We should all be very alarmed when corals start “glowing” — this is the visual indicator that planetary systems are starting to fail. For the first time in human history, we’re on the verge of losing global-scale ecosystems on which we depend — starting with coral reefs.

Why coral reefs? Climate change is largely an ocean issue. The upper ocean is absorbing over 90% of climate change heat, putting coral reefs firmly on the frontline of the issue.

The ocean sustains all life on Earth, yet it is as fragile as the human body — with even a small change in temperature (as little as 1 degree C), vital systems start shutting down. This is what Glowing corals indicate, why we should all take notice and why we need them to inspire action.