The dawn of the Dark Ages coincided with a volcanic double event – two large eruptions in quick succession. Combined, they had a stronger impact on the Earth’s climate than any other volcanic event – or sequence of events – in the last 1200 years. Historical reports reveal that a mysterious dust cloud dimmed the sun’s rays between in 536 and 537 CE, a time followed by global societal decline. Now, ...[Read More]
GeoLog
Imaggeo on Mondays: Using geophysical techniques to unlock the secrets of the past
Unravelling the secrets of past civilisations is tricky at the best of times. More so if many of the records which hold clues about how communities lived, built their homes and temples, as well as how they fed themselves, were destroyed by subsequent invaders. In these instances, as Felix Rodriguez Cardozo explains in today’s post, geophysical techniques (such as Lidar, which very recently hit the ...[Read More]
Biogeosciences
Keeping a lookout at the edge of the world
Few places in the world conjure up images of remoteness and harshness like Far Eastern Siberia. Yet, it’s places like these where our science is needed most. Arctic soils hold vast amount of carbon, protected in thick layers of permafrost, but these stores are becoming more and more vulnerable as temperatures in the Arctic warm, and are set to warm faster than anywhere else on the planet. R ...[Read More]
GeoLog
GeoEd: Planet Press – geoscience news for children
Inspiring children to be interested in the geosciences isn’t always an easy task. While dinosaurs, volcanoes and earthquakes are a sure hook (rightly so!), there is also much more to the Earth, ocean and planetary sciences! Not only that, but new developments happen much more quickly than the lifetime of a textbook, meaning that breaking science is often underreported in the classroom. However, ...[Read More]
Cryospheric Sciences
Image of the week — The warming effect of the decline of Arctic Sea Ice
One of the most dramatic signals of Earth’s recent warming has been the precipitous decline of the Arctic sea ice. While the sea-ice decline is in response to warming ocean and atmosphere, it also has an important feed-back on the climate itself. Solar radiation and albedo Earth’s main energy source is solar radiation. This solar radiation is either absorbed in the atmosphere or at the ...[Read More]
Geomorphology
Soil is not dirt cheap: Soils, Sustainable Development Goals, and Geomorphologists.
– written by Solmaz Mohadjer – Does contaminated soil make your bones go soft? What if you are told to stop growing vegetables in your garden because the soil is too toxic? What if farmers refuse to produce nutritionally valuable crops because of risk of massive floods? What would you do if you are forced to leave your farm due to fear of floods? Surprisingly, these are the kinds of q ...[Read More]
GeoLog
General Assembly 2016 – Highlights
It’s been a month and a half since the EGU General Assembly 2016 in Vienna. The conference this year was a great success with 863 oral, 10,320 poster, and 947 PICO presentations. A further 619 unique scientific sessions were complimented by an impressive 321 side events, creating an interesting and diverse programme.The conference brought together 13,650 scientists from 109 countries, 25% were stu ...[Read More]
GeoLog
Imaggeo on Mondays: The British Winter Storms
This week’s imaggeo on Monday’s photography is Godrevy Lighthouse in North Cornwall (UK) experiencing the full force of the 2013/14 British Winter Storms which caused damage across the south west of the country. During mid-December 2013 to mid-February 2014 the UK was hit by six major storms bringing record precipitation, strong winds, huge waves and generating overall hazardous conditions. Despit ...[Read More]
GeoLog
Testing triggers of catastrophic climate change
The research presented during the EGU’s 2016 General Assembly have wide-reaching implications for how we understand planet Earth. In today’s post, Sara Mynott, an EGU press assistant during the conference, writes about findings presented at the meeting which highlight the importance of the biosphere when it comes to understanding the threat posed to our planet by environmental challenges. With the ...[Read More]
Cryospheric Sciences
Image of the Week – Mushrooms at zero degrees = hair ice?!
When you go down to the woods today you’re in for a big surprise….. hair ice! Did you know that there is a type of ice called hair ice? It is shaped like fine, silky hairs and looks like white candy floss. It grows on the rotten branches of broad-leaf trees during humid winter nights when the air temperature drops slightly below 0°C. A 100-year-old theory states that hair ice a ...[Read More]