A recent global analysis indicates that the coral ecosystems in the Arabian Gulf could be almost entirely lost by the end of the century due to the ongoing warming of sea temperatures.

The research forecasts that coral cover in the Gulf between 2090 and 2099 may decrease by 75 to 100 percent compared to levels observed between 2010 and 2019.

The predictions vary depending on future greenhouse gas emissions trends, with a 'middle-of-the-road' scenario estimating an overall global coral cover decline of about 58 percent by the century's end.

The study, conducted by scientists from various institutions, highlights that corals in extremely warm regions will struggle to migrate to cooler areas fast enough to mitigate the impacts of rising ocean temperatures.

The findings, published in the journal Science Advances, suggest that the most severe declines in coral health are expected to occur within the next 40 to 80 years.

The authors point out that while some regions, such as the southern coast of Australia, may see increases in coral cover, the Arabian Gulf is projected to be among the areas hardest hit.

Dr. Noam Vogt-Vincent, the study’s lead author from the University of Hawaii at Manoa, emphasized that observations of coral bleaching events—where corals expel the algae that are crucial for their survival—support the study’s predictions.

As ocean temperatures rise, suitable conditions for coral formation are shifting away from tropical regions.

Previous assumptions that subtropical and temperate waters may serve as 'refugia' for tropical coral species have been questioned.

The research indicates that while a delayed migration of corals to higher latitudes may eventually take place, the timeframe required—centuries—far exceeds the immediate threats they face from climate change.

The Arabian Gulf is particularly vulnerable, having warmed by approximately 1.0 to 1.5 °C over the past 40 to 50 years, a pace exceeding the global average.

Dr. Diana Francis, an assistant professor at Khalifa University in Abu Dhabi, reaffirmed that the Gulf's shallow, semi-enclosed nature and high solar exposure contribute to its rapid warming.

The implications of this research are significant, particularly as rising sea levels, which result from both thermal expansion and the melting of ice sheets, further threaten marine ecosystems.

Professor John Burt of New York University Abu Dhabi, who studies coral ecosystems in the UAE, has noted that ongoing research underscores the insufficiency of coral range expansion to counteract the impacts of climate change.

The study reveals that only a limited number of coral species are capable of adapting to new environments, and the diversity of coral ecosystems may not be preserved through range migration alone.

Coral species in the Arabian Gulf are recognized as some of the most heat-tolerant globally; however, they remain susceptible to climate change and have already suffered significant losses, with more than 80 percent of corals in some regional reefs disappearing in the last decade.

In response to the declining coral health, initiatives have been introduced in Abu Dhabi to plant millions of coral colonies across over 900 hectares, managed by the Environment Agency Abu Dhabi.

Efforts have reportedly resulted in the restoration of more than one million coral colonies.

Furthermore, research on selective breeding is underway to develop heat-tolerant coral larvae, potentially creating millions of offspring better equipped to survive in elevated temperatures.

Experts emphasize the necessity of reducing CO2 emissions to safeguard coral resilience in the long term.

They also indicate that addressing other stressors, such as pollution and overfishing, could have beneficial effects on coral reef recovery.

However, cautions highlight that without global efforts to manage carbon emissions, the future viability of coral ecosystems remains uncertain.