news 2026

Although invasive alien species are very often reduced to predators eliminating defenseless prey, in reality they do more than simply weaken certain species: they fundamentally reshape the environment itself. In order to better assess the impacts of the roughly 3,500 invasive species on the environment, an international team of scientists led by a researcher from the CNRS 1 has developed an evolution of the " Environmental Impact Classification of Alien Taxa " (EICAT) standard.

In Paris, districts with more vegetation have a lower risk of death during periods of high heat, while highly mineralized areas with few green spaces and a high potential for urban heat islands are the most exposed. This is the finding of an international study conducted by Inserm, the Barcelona Institute for Global Health (ISGlobal) and the London School of Hygiene & Tropical Medicine, published on January 27 in the journal npj Urban Sustainability, based on data collected over nearly ten years, from 2008 to 2017.