If we look at Mars today, we’ll see a cold, dusty desert, but peel back the surface geology, and the planet tells quite a different story! Networked river valleys, ancient deltaic fans, carved impact crater lakes, and potential palaeoshorelines all point to a warm and active past during the Noachian and early Hesperian epochs, circa …[Read More]
This Sunday, July 26, marks the International Day for the Conservation of the Mangrove Ecosystem. We are currently experiecing critical crossroads globally, where groundbreaking data on global forest recovery collides with the immediate threats of an escalating climate crisis.El Niño is pushing Pacific sea surface temperatures toward levels that rank among the highest on record, …[Read More]
Every year on 21 June, the global scientific community celebrates World Hydrology Day to highlight the importance of water sciences play in sustainable resource management and natural hazard mitigation. Historically, human efforts to protect and manage freshwater have suffered from a blind spot. While we can easily measure a river’s flow at a specific gauging …[Read More]
Tidal flats, the muddy reaches of estuaries unveiled at low tide, support rich ecosystems and fisheries worldwide. But these habitats are under threat from climate change, as sea level rise overwhelms the landscape and heavy rainfall scours away the sediment – impacts that scientists are only just beginning to explore. In an effort to understand …[Read More]
Hello Christina! Welcome to GeoTalk. Before we dive in, could you introduce yourself to our readers? Hey everyone! I’m a researcher at the Institut de Recherche pour le Développement (IRD) in Montpellier in the South of France. For my work, I specialise in remote sensing and hydrological modelling, with study areas in Cambodia, Tunisia, and …[Read More]
On July 16, 1965, the Mont Blanc Tunnel, 11.611 km of tunnel piercing the heart of the Alps, opened to traffic, marking a triumph of engineering, geology, and international cooperation. Sixty years later, this civilian artery connecting Chamonix (France) and Courmayeur (Italy) stands not just as a testament to human inventiveness but as an ongoing marvel if viewed through …[Read More]
This blog post is co-published with the Hydrology Division (HS). Storm Boris is the latest in a series of deluges during one of Europe’s most flood-prone periods in 500 years, yet Vienna managed to avoid major damage. The city’s preparations may offer valuable lessons for other urban areas facing similar challenges. Dealing with record rainfall: …[Read More]
Ever wonder what happens to the chemicals and medications we use once they go down the drain? The fourth Sunday of September each year marks the World Rivers Day, and this post is dedicated to our global rivers and what humankind can do to preserve our waters. This is because pharmaceuticals and household products, even …[Read More]
Do you know how scientists predict and analyse river flows using computer models? In this blog, Juliette Godet explores the tricky task of matching real-world river measurement points to grid cells in these models. Picture a giant digital map of a river basin, divided into grid squares, and a real-life gauge that measures river flow …[Read More]
The European Geosciences Union (EGU) supports bringing science into the classroom at all learning levels, from schools to universities. Since the Higher Education Teaching grant programme launched in 2020, EGU has funded 24 projects to develop useful and freely available geoscience resources to university educators. This blog is part of a series of blogs highlighting …[Read More]
