Climate: Past, Present & Future

An online learning platform for cyclostratigraphy – www.cyclostratigraphy.org

Christian Zeeden, David Vleeschouwer and Matthias Sinnesael August 2, 2021

Feature image: Triangle diagram highlighting the multidisciplinary character of cyclostratigraphy.

Cyclostratigraphers aim to read and understand the effect of climate-driven orbital changes in the geological record through time. In doing so, they start from an important prerequisite: An imprint of insolation variations caused by Earth’s orbital eccentricity, obliquity and/or precession (Milankovitch forcing) can be preserved in the geological rock record. The new www.cyclostratigraphy.org webs ...[Read More]

Bomb 14C – a tracer and time marker of the mid-20th century

July 14, 2021

Figure 1. Radiocarbon production and three main drivers of the variable atmospheric 14C content (modified figure [4]).

1950 CE is known as the year zero in the so-called ‘BP time scale.’ The BP stands for, “Before Present,” and has its roots in the development and conventions of radiocarbon dating [1]. The radioactive isotope of carbon (14C) with a half-life of 5700 years [2; 3] is a cosmogenic isotope produced in the atmosphere by secondary cosmic rays (SCR). Thermal neutrons, the SCR particle responsible for the ...[Read More]

Feeling the Heat: The Grilled Earth

July 1, 2021

Figure 1: Permafrost wall in Herschel Island. Permafrost thawing is a potential contributor to climate change and a risk for northern communities. Source: Wikimedia Commons. Photo: Boris Radosavljevic.

Nowadays, there are plenty of media reports about the impacts of climate change around the world. Glaciers are disappearing, gigantic craters form in Siberia as the previously frozen ground thaws, the sea is threatening to swallow entire islands, floods cause large damages to people and economy, heat waves periodically destroy crops and can reach dangerous levels for people’s health. And this is o ...[Read More]

Presenting the EGU Climate Division Team 2021

June 23, 2021

by Annett Junginger via Imaggeo

Every year at the General Assembly all EGU members have a chance to vote for their representatives during the different division meetings. In the Climate Division, we have a team of President and Deputy President, a Programme Group Chair, Science Officers, as well as Representatives for the Early Career Scientists and an Outreach Team. There is further the OSPP Coordinator and the chairs for the H ...[Read More]