Description de l'item "Terre"

Classe
terre

Changing the way we conduct research: Advocating for Sustainability Science

In the ocean, near a sandy bottom, a good-sized coelacanth faces a diver.

The new coelacanth has arrived?

Indonesian and French scientists have identified what they believe to be a new species of coelacanth, shedding light on the biogeographical mechanisms at the origin of the divergence between the populations known to date. The history of the evolution of this group of fish, little changed in...

How Environmental Changes are Causing New Diseases to Emerge?

Petites maisons colorées sur un bout de terre entourée de mer

Islands and island environments faced with global changes

Openness to the outside world, incorporation within the global economy but also the growth in natural risks and rising sea levels.... With their unique characteristics, often under threat, island environments and communities are today faced with unprecedented destabilising factors.

The climate in ice

Where are the climate archives ? In the ice ! During the first Ice Memory expeditions, international scientists extracted five ice cores from the world's highest glaciers containing gases and aerosols that have been trapped for thousands of years. Two of them will be analysed in Grenoble, in the...
dechets-plastiques

Variability and convergence at the heart of the oceans

While gigantic eddies trap floating particles at the heart of each ocean basin in subtropical regions, other currents link the Southern Indian Ocean to the South Pacific. Stable connection over 8,000 km!

The Challenges of the Sub-Saharan Urban Explosion

Sub-Saharan African cities are presently growing at a size and speed unprecedented in human history. This region of the continent, which was always very rural up to now, is becoming predominantly urban. Small, medium-sized and large cities are doubling in size year on year, with some growing by 1...

The old chief and the rain gauge

When instructions are taken very seriously
Root nodules of Discaria (Order: Rosales), a non-legume species capable of nitrogen-fixing symbiosis.

Nitrogen-fixing symbioses reveal themselves

Recent research has revealed the origin and evolution of symbiotic relationships between certain plants and soil bacteria in order to use atmospheric nitrogen. This knowledge could ultimately contribute to the development of sustainable agriculture minimising the use of chemical fertilisers.
Large-scale hydroelectric dams on Andean rivers disrupt river connectivity to the Amazon.

Andean dams versus Amazonian biodiversity

A recent scientific study warns of the multiplication of large-scale hydroelectric dams on the Andean tributaries of the Amazon. These installations break up watercourses and pose a threat to the biodiversity and hydrological regime of the entire basin.