EGU Blogs

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CR
Cryospheric Sciences

Climate Change & Cryosphere – Why is the Arctic sea-ice cover retreating?

September 13, 2019
Climate Change & Cryosphere – Why is the Arctic sea-ice cover retreating?

The Arctic Ocean surface is darkening as its sea-ice cover is shrinking. The exact processes driving the ongoing sea-ice loss are far from being totally understood. In this post, we will investigate the different causes of the recent retreat of the Arctic sea-ice cover, using the most updated literature… Arctic sea ice is disappearing Due to its geographical position centered around the Nort ...[Read More]

AS
Atmospheric Sciences

A brighter future for the Arctic

September 13, 2019
A brighter future for the Arctic

This is a follow-up from a previous publication. Recently, a new analysis of the impact of Black Carbon in the Arctic was conducted within a European Union Action. “Difficulty in evaluating, or even discerning, a particular landscape is related to the distance a culture has traveled from its own ancestral landscape. As temperate-zone people, we have long been ill-disposed toward deserts and ...[Read More]

HS
Hydrological Sciences

YHS interview Martyn P. Clark: “rainfall-runoff modelling, per se, is dead”

September 11, 2019

In its “Hallway Conversations” series, the Young Hydrologic Society has recently published an interview with Martyn P. Clark, who is currently professor and the Associate Director of Centre for Hydrology and Canmore Coldwater Lab, at the University of Saskatchewan, Canada. The interview was conducted by Sina Khatami, a PhD student at the University of Melbourne. With their agreement, we reproduce ...[Read More]

GD
Geodynamics

The geodynamics of Enceladus: exotic and familiar

September 11, 2019
Enceladus

This week, Gael Choblet, CNRS research associate in the Laboratoire de Planétologie et Géodynamique (University of Nantes and Angers), tells us everything about the interior of Enceladus, an interesting icy moon of Saturn! This is my first contribution in these pages. The choice of Saturn’s small moon Enceladus as a topic mostly results from my acquaintance with this planetary body. Yet, the reade ...[Read More]

NP
Nonlinear Processes in Geosciences

Abrupt Warming could bring our planet a “Hothouse Earth” with catastrophic consequences for our economy and society

September 9, 2019
Abrupt Warming could bring our planet a “Hothouse Earth” with catastrophic consequences for our economy and society

Most of us have enjoyed swings in childhood. Some have even tried to swing faster and make a full 360 degrees’ loop. Those who succeeded had a very strange feeling of not being able to predict whether, increasing the energy of the swing, the transition from normal oscillations and 360 loops would happen. Indeed, there is an energy threshold such that the swing goes from oscillations to full loops ...[Read More]

GeoLog

Cities of the future

September 6, 2019
Cities of the future

Over half the world’s population lives in cities. Many a metropolis rises high above carpets of concrete and tarmac, vibrant, bustling, and prosperous. But this urban environment comes with many a problem. From poor air quality to hazardous temperatures, there are several dangers present in urban environments. Scientists speaking at the European Geosciences Union General Assembly in Vienna earlier ...[Read More]

CR
Cryospheric Sciences

Cryo-adventures – Life and science at a central Greenland ice core drilling camp

September 6, 2019
Cryo-adventures – Life and science at a central Greenland ice core drilling camp

How do you get there? Where will you sleep? What work will you do there?These are just a few of the many questions I got from family and friends when I told them that I would join the EastGRIP ice core project this summer. As a paleo climate and ice sheet modeller, I could only repeat the abstract information given to me, very conscious that I actually had no idea how it would be to live and work ...[Read More]

WaterUnderground

Shedding light on the invisible: addressing potential groundwater contamination by plastic microfibers

6th September 2019
Shedding light on the invisible: addressing potential groundwater contamination by plastic microfibers

Post by Viviana Re, researcher at the University of Pisa in Italy. You can follow Viviana on Twitter at @biralnas. Until recently, the topic of plastic pollution was relatively unknown to the general public, although the problem was already under everyone’s very eyes. Indeed, plastic pollution has become one of the most debated issues over the last few years, in some cases even overshadowing ...[Read More]

Geochemistry, Mineralogy, Petrology & Volcanology

How do crystal aggregates form in magma chambers?

September 5, 2019
How do crystal aggregates form in magma chambers?

By Penny Wieser (PhD student at the University of Cambridge) Clues into the inner workings of volcanoes can be gleamed from material which is erupted at the surface, or that which solidified at depth in the crust. Just before eruption, three main phases are present: a gas phase (containing water, carbon dioxide, sulphur, chlorine etc), a liquid melt phase (the magma), and a solid phase (consisting ...[Read More]

Geology for Global Development

The seven frames of climate discussion in the media. How climate liability pushes for corporate action. Are we already unwittingly geoengineering the oceans? Jesse Zondervan’s August 2019 #GfGDpicks #SciComm

September 4, 2019
The seven frames of climate discussion in the media. How climate liability pushes for corporate action. Are we already unwittingly geoengineering the oceans? Jesse Zondervan’s August 2019 #GfGDpicks #SciComm

Each month, Jesse Zondervan picks his favourite posts from geoscience and development blogs/news which cover the geology for global development interest. Here’s a round-up of Jesse’s selections for the last month: As Greta Thunberg hits the news with her zero-carbon crossing of the Atlantic, this month discussion on adaptation to climate change is voluminous. Coverage of climate change follow seve ...[Read More]