Climate Chief Melissa Hoffer hosted a critical discussion on April 23, 2024, focusing on the alarming rise in ocean temperatures and its impact on marine ecosystems. The meeting highlighted the interconnected issues of ocean acidification and coral bleaching, both of which pose significant threats to ocean life and human communities.

During the discussion, experts explained that ocean acidification occurs when increased carbon dioxide (CO2) in the atmosphere dissolves in seawater, forming carbonic acid. This process lowers the ocean's pH, making it more acidic. The implications for marine organisms are severe, as many species, particularly those with calcium carbonate shells, struggle to survive in these changing conditions. The stress from a warmer, more acidic ocean can hinder their ability to thrive and reproduce.

Coral bleaching was another major topic of concern. Corals, which are vital to marine biodiversity and fisheries, rely on symbiotic algae for energy. When ocean temperatures rise and acidity increases, corals become stressed and expel these algae, leading to a stark white appearance known as bleaching. This phenomenon is occurring at an alarming rate, with over half of the world's coral reefs affected annually. Experts warn that without significant intervention, coral reefs could face severe decline by 2050.

The discussion underscored the importance of coral reefs not only for marine life but also for human communities that depend on them for food and tourism. As the health of the oceans deteriorates, the repercussions will extend beyond marine ecosystems, affecting livelihoods and economies worldwide. The meeting concluded with a call for urgent action to address climate change and protect these vital ocean habitats.