A growing environmental threat to Caribbean marine ecosystems has received a boost in regional preparedness, as a young scientific professional from Antigua and Barbuda has completed specialized training focused on understanding and monitoring ocean acidification. Alexandra Hughes, a graduate assistant attached to Antigua and Barbuda’s Department of Analytical Services, completed the intensive instruction at a training event hosted in Jamaica this cycle.
The foundational ocean acidification training course was co-organized by two leading institutions in global marine science: the University of the West Indies, and the Ocean Acidification International Coordination Centre operating under the International Atomic Energy Agency (IAEA). The entire program was fully sponsored by the IAEA, which has made expanding developing nation capacity on climate-linked ocean issues a key priority for the Latin America and Caribbean region.
Throughout the multi-day training, Hughes did not only gain new technical skills — she also took the opportunity to represent her home country’s scientific work as a featured speaker in a panel discussion. During her panel contribution, she outlined the ongoing projects and core missions of Antigua and Barbuda’s Department of Analytical Services, and led a productive conversation about how targeted ocean acidification research can be formally integrated into the island nation’s existing national environmental work framework.
Unlike many general environmental conferences, this training was designed specifically to build hands-on capacity for early-career scientists across the Caribbean. It gathered early-to-mid-career researchers from 12 different Caribbean island and coastal nations, delivering interactive, practical training on field monitoring protocols, laboratory sample processing, and data analysis techniques that are critical for tracking local changes in ocean chemistry linked to acidification.
Ocean acidification is a climate change-linked phenomenon that occurs when the world’s oceans absorb excess carbon dioxide from the atmosphere, pushing seawater chemistry toward a lower, more acidic pH level. For the Caribbean, which relies heavily on healthy coral reef ecosystems, commercial and artisanal fisheries, and coastal tourism for national livelihoods, this trend poses an outsized long-term threat. Acidification erodes coral skeleton formation, weakens shellfish populations, and disrupts entire marine food webs that underpin billions in regional economic activity and hundreds of thousands of jobs.
Regional environmental and science officials from the Caribbean Environment Programme and participating national institutions have emphasized that training local scientific talent through cooperative initiatives like this one is a critical first step to building effective collective and national policy responses. For small island developing states like Antigua and Barbuda, which are among the most vulnerable to climate change impacts but often lack specialized scientific capacity, investment in training like this creates ripple effects that strengthen entire regional response networks. Officials from Antigua and Barbuda’s Department of Analytical Services noted that Hughes’ new expertise will allow the agency to launch its own local monitoring efforts, and contribute national data to regional ocean acidification research initiatives in coming years.
