Few studies have investigated coastal marine plankton and aggregate abundance and diversity with high frequency over a long time period. Here, a group of researchers deployed a cabled marine Oshima Coastal Environmental data Acquisition Network System (OCEANS) observatory in 20 m of water off the coast of Oshima Island in Japan to establish plankton diversity and plankton and aggregate abundance as a function of ocean turbulence during two 4-month periods spanning 2014 to 2016.

A recent study published in National Science Review has revealed that atmospheric oxidation capacity at northern midlatitude regions is approaching a turning point, challenging prior assessments of hydroxyl radical (OH) increases or stability. Over the past 50–60 years, OH levels have remained near peak values. Future sustained reductions in nitrogen oxide (NO_x) emissions will lead to a decline in surface OH concentrations across the northern midlatitude regions, implying an increase in the atmospheric lifetime of pollutants and methane. This poses new challenges for regional air pollution control and climate change mitigation.

The real climate risks to Ireland from changes to the Atlantic currents that sustain our mild climate are obscured by exaggerated claims in media headlines and movies.

That’s according to Dr Gerard McCarthy, a Maynooth University (MU) oceanographer at the Irish Climate Analysis and Research UnitS (ICARUS) in the Department of Geography, who has led a new article for Nature Climate Change.

The latest paper is a retrospective on a landmark 2015 study led by Professor Stefan Rahmstorf, which identified long-term Atlantic cooling as a sign that the Atlantic Meridional Circulation (AMOC) was weakening.

In a paper published in SCIENCE CHINA Earth Sciences, a research team systematically interpreted the key scientific issues such as the DO threshold, structural characteristics, distribution patterns, formation and maintenance mechanisms, and driving factors of the OMZ in the context of global change. It may provide important scientific basis for further exploring the coupling relationship between global change and oceanic OMZ, and for understanding marine hypoxia and deoxygenation issues from a global perspective