coccolithophores and their responses to changes in carbonate chemistry (end of the 90’s, the term ocean acidification did not yet exist). Even though my work has often been motivated by biogeochemical questions [...] and where nutrients and CO 2 are distributed in the ocean, which has implications for primary and bacterial production and CO 2 uptake by the ocean. In order to understand how such biogeochemical cycles [...] and carbonate chemistry parameters in the Fram Strait and the Central Arctic Ocean. To monitor such parameters in the ocean, it is common practice to analyze discrete water samples obtained e.g. by rosette

factors such as warming, nutrient deficiency or ocean acidification, by focusing on one of the most sensitive areas on Earth, the subarctic and Arctic Ocean. Thereby, we contribute to the Helmholtz research [...] CO 2 is taken up by the ocean, concentrations of CO2 and bicarbonate increase while the concentration of carbonate ions and the pH decrease, also known as 'Ocean Acidification'. Just like warming, also [...] greenhouse gas, rising CO 2 causes ocean warming: temperatures of the surface waters have already increased by 1.1°C on average, while some regions like the Arctic Ocean changing fastest (IPCC 2022). The

2 supply outdoor mesocosms comprising of twelve 1,800 l replicate tanks to simulate ocean warming and acidification under various tidal conditions. List is the home port of the AWI`s state-of-the-art research

Anneli.Strobel@awi.de
+49(471)4831-1479
Am Handelshafen 12, 27570 Bremerhaven

all latitudes. Cold-water corals (CWC) have long been considered particularly vulnerable to ocean acidification, but in the naturally acidified fjords of Patagonian Chile, we found large populations of CWC

laurie.c.hofmann@awi.de
+49(471)4831-2739
Bussestraße 27, 27570 Bremerhaven

Clara.Hoppe@awi.de
+49(471)4831-2096
Am Handelshafen 12, 27570 Bremerhaven

Jelle.Bijma@awi.de
+49(471)4831-1831
Am Handelshafen 12, 27570 Bremerhaven

Bjoern.Rost@awi.de
+49(471)4831-1809
Am Handelshafen 12, 27570 Bremerhaven

CO 2 . A smaller ocean carbon sink can also be the outcome when climate changes affect major ocean currents, or when, due to changes in the marine environment (warming, acidification, nutrient and light [...] warming ocean simply can’t absorb as much as a cold one. In addition, the constant absorption of carbon dioxide affects the chemical balance of seawater. This phenomenon, referred to as ocean acidification [...] environmental scientist Dr. Judith, jpg | 14 MB Media Dialogue & Lectures Lectures | 06.11.2019 #Oceans4future? The ocean in the Global Carbon Budget Helmholtz Horizons Policy advice since 2018 Global Carbon Budget