Sea ice absorbs the CO₂ in the atmosphere. An unheard-of phenomenon ten years ago, it’s shaking up what we know about the dynamics of greenhouse gases.

An acoustic device has made it possible to detect the production of oxygen and therefore the photosynthetic activity of posidonia meadows. These plants are Mediterranean seagrasses which have a vitally important role to play in the environment. 

Studying jelly-fish is a useful activity, especially from the point of view of trying to understand a phenomenon of proliferation of the species that has been observed almost everywhere on the planet for almost three decades.

Guanabara Bay in Brazil is a dream destination for tourists. But less so for its dolphins, which show PCB concentrations that are among the highest in the world!

In the furthest depths of the oceans, where daylight never penetrates, bacteria develop, serving as a 'larder' for shrimps that feed on them through their cuticle.