A recent study reveals alarming projections for Caribbean coral reefs, suggesting that over 70% could stop growing and begin eroding by 2040 if global warming persists. Coral reefs are crucial for coastal protection and marine biodiversity, yet they face increasing threats from climate change, including rising ocean temperatures and acidification. These factors contribute to coral bleaching and hinder the reefs' ability to build their structures. Researchers analyzed ancient fossil reefs alongside modern ecological data to assess current growth rates and predict future scenarios. The findings indicate that by 2100, nearly all Caribbean reefs could be eroded if global temperatures rise by 2°C above pre-industrial levels. This scenario underscores the urgent need for global action to limit warming and protect these vital ecosystems.