news 2022

A consortium of bacteria form on the microfibers of the Mediterranean Sea, becoming "floating homes for bacteria". Maria Luiza Pedrotti, a CNRS researcher at the Villefranche-sur-Mer oceanography laboratory  has reported the presence of a pathogenic bacterium on the tiny textile fibers found in the deep blue sea.

In bocage landscapes, the hedgerows that border cultivated fields provide many services. However, they are often perceived as sources of weeds, those wild plants generally called "weeds" and considered undesirable. Scientists from INRAE, in partnership with teams from the University of Rennes 1, CNRS and ANSES, studied the impacts of bocage landscapes on weeds.

For the first time, a digital model has shown that both fishing and climate-induced environmental change are responsible for the collapse of cod stocks in the North Sea. Taking into consideration these two factors together is crucial for the sustainable management of fish stocks. Using a new digital model, an international team led by researchers from the oceanology and geosciences laboratory (LOG) (CNRS/Université de Lille/Université du Littoral Côte d'Opale) has shown how fishing and climate affect cod stocks in the North Sea.

Marine protected areas (MPAs) are one of the solutions being put forward to help adapt to and mitigate the effects of climate change. To demonstrate their effectiveness, scientists from CRIOBE (CNRS/École Pratique des Hautes Etudes/UPVD), as part of an international team 1 , analysed 22,403 research articles on MPAs.

Trees play an essential role in the well-being of city dwellers - but for how long? An international research team, including a CNRS researcher from the Ecology and Dynamic of Anthropogenic Systems laboratory at the University of Picardy Jules Verne (Laboratoire Ecologie et dynamique des systèmes anthropisés, CNRS/Université of Picardy Jules Verne) 1 , has published the first global risk assessment for tree species planted in cities in the curre

Until now, it has been assumed that the oxygenation of the oceans over geological timescales has mainly been driven by atmospheric oxygen levels. However, a new study published in Nature June 27 2022   suggests otherwise. Work by scientists at the Biogeosciences Laboratory (CNRS/UBFC), together with their colleagues at the University of California's Department of Earth and Planetary Sciences, shows that the movement of tectonic plates has probably contributed to ocean oxygenation.

Some endocrine disruptors have already been associated with an impaired quality of tooth enamel. After demonstrating the harmful effects of bisphenol A on tooth development, a team of researchers from Inserm, Université Paris Cité and Sorbonne Université, at the Cordeliers Research Center in Paris, in collaboration with CNRS went on to look at the effects of DEHP, an endocrine disruptor in the phthalate family, on dental development.

Global climate change is particularly noticeable in the Arctic since it is warming twice as fast as temperate regions.

The 2022 Paname initiative 1 aims to better understand the causes and effects of climate change in urban environments through intensive measurement campaigns planned for the Paris region this summer. From the studies, information will be derived that is key to making cities more resilient to future climate realities.

A major contributor to climate change, methane (CH4) has a global warming potential approximately 30 times higher than that of CO2, over a 100-year period. One quarter of anthropogenic emissions of this greenhouse gas originate in worldwide extraction of coal, oil, and natural gas (of which methane is the main component).

Users of different transport types breathe in over twice the dose of black carbon per 30-minute period when traveling compared with when not traveling (when at home or at work, for example). Unsplash The measurements of individual exposure to pollution, which are generally taken at the place of residence, overlook two major parameters: the much higher exposure occurring during travel and the variations in air volumes, and consequently the varying levels of air pollutants, which are inhaled according to the intensity of physical exertion involved by the journey.

Every year in France, fine particle pollution (particles with a diameter of less than 2.5 micrometres 1 ) leads to the premature death of around 40,000 people. The associated cost is estimated at €100 billion per year. Despite this, public policies to combat air pollution are generally implemented without first assessing their future health and economic impacts.