As the world marks World Oceans Day on June 8, marine scientists are warning that oceans are approaching critical ecological limits under the combined pressures of climate change, pollution and biodiversity loss, while highlighting COP31 in Antalya as a key opportunity to place ocean issues at the center of global climate discussions.

Established by the U.N. in 2008, World Oceans Day aims to raise awareness about the importance of oceans and the growing challenges they face. This year's theme calls for a renewed relationship between humanity and the oceans, emphasizing their role in sustaining life and regulating the Earth's climate.

Experts say oceans have long served as a buffer against climate change by absorbing a significant share of carbon emissions and excess heat generated by human activities. However, rising sea temperatures, acidification, oxygen depletion, plastic pollution and habitat degradation are increasingly threatening marine ecosystems worldwide.

Dr. Cem Gazioğlu, director of the Institute of Marine Sciences and Management at Istanbul University, said oceans are under unprecedented pressure from multiple environmental stressors.

"Oceans absorb nearly one-third of global carbon emissions and more than 90% of excess heat caused by human activities, but their capacity to continue providing these services is being tested," Gazioğlu said.