Global Coral Reefs Face Thermal Tipping Point

On 13^th October 2025, a Global Tipping Points report warned that warm-water coral reefs worldwide have crossed their thermal tipping point, triggering unprecedented dieback and threatening both marine biodiversity and human livelihoods.

What are coral reefs?

• Coral reefs are diverse underwater ecosystems often called the “rainforests of the oceans.”
• They provide habitat for a quarter of all marine species and support nearly one billion people with food, income, and coastal protection.
• Reefs are highly sensitive to ocean temperature rise, with a threshold for warm-water corals having already exceeded 1.2°C, causing mass bleaching events.

Current Situation

• Since January 2023, the fourth global mass ....