Illustration of scientists and people with the marine environment

Oceans of Impact

The ocean has been experiencing substantial changes in marine physics, chemistry and biology including ocean acidification, rising seawater temperature, ocean deoxygenation and sea level rise. These four, often interacting factors, are expected to increase over the coming decades depending on the concentration of greenhouse gases in the atmosphere. It is imperative that international decision-makers and stakeholders understand the enormous role the ocean plays in sustaining life on Earth, and the consequences of a high CO2 world for the ocean and society.  
 Oceans of Impact front cover showing scientists and people and the marine environment

Download the Oceans of Impact guide (pdf - 3MB).

Developed for the United Nations Framework Convention on Climate Change meeting (UNFCCC COP24) 2018, this publication is an initiative by UK scientists and international partners, led by Plymouth Marine Laboratory (host of the North East Atlantic Hub of the Global Ocean Acidification-Observing Network) and funded by the UK Government Department of the Environment, Food and Rural Affairs. It provides evidence-based science for policy making on the impacts of increasing concentrations of carbon dioxide and other greenhouse gases on the ocean and human systems. 

PML and its international partners have been raising awareness on ocean matters at these UNFCCC meetings since 2009. 

Please email Thecla Keizer ( for further details.

COP24 - UN Climate Change Conference

PML will be attending COP24 and will be responsible for a number of side events. 

The side event programme is available to download here.

You can find out more info about the event (including programme) on the UN website  

Related videos

Ocean Acidification: An Ecosystem Facing Dissolution

As a large sink, the ocean absorbs carbon dioxide from the atmosphere. But in sea water, the gas reacts to produce carbonic acid - a threat for organisms building their shells and skeletons from calcium carbonate. A film from GEOMAR | Helmholtz Centre for Ocean Research Kiel.


Testing the Waters (English Version)

Ocean acidification - known as "the other CO2 problem" - is now also affecting the ecosystems of the Mediterranean. The scientific project MedSeA, funded by the European Community, has been studying the impacts of the phenomenon throughout the Mediterranean region for the last three and a half years. The video shows key information, scientific knowledge, and findings of the MedSeA Project, against the beautiful (and endangered) setting of the Mediterranean waters.