The green belt and Old Nice under water, with only the roofs protruding.

It could be the scenario of a disaster film but it is indeed what could happen in several decades.

In a new study, published Tuesday in the journal

Environmental Research Letters

, scientists warn of rising sea levels after observing the direct consequences on coastal cities, including Nice.

If the temperature of the planet warms by 3 ° C more, these urban areas will be entirely submerged.

Already in August, the last report of the Intergovernmental Panel on Climate Change (IPCC) sounded the alarm on global warming and its effects on sea level at the end of the century.

Most current estimates of sea level rise and the threats it poses to coastal towns run to the turn of the century and range from half a meter to less than a meter.

About 5% of the global population affected

The phenomenon will continue beyond 2100 under the effect of warming water and melting ice, explains the study, regardless of the speed of reduction in greenhouse gas emissions.

"About 5% of the world's population currently lives on land below the level that will be reached at high tide as a result of carbon dioxide already accumulated in the atmosphere by human activity," said the lead author. from the Ben Strauss article.

Planet

The expected phenomena are "very worrying for our biodiversity", warns teacher-researcher Paola Furla

Planet

"Faced with scarcity", sea urchin fishing pushed back on the coasts of the Alpes-Maritimes and the Var

  • Global warming

  • Planet

  • Nice

  • Environment