Volcanic emission can have a strong impact on the Earth’s radiation budget and climate over a range of temporal and spatial scales. It is now well known that strong explosive volcanic eruptions are a major natural driver of climate variability at interannual to multidecadal time scales. Volcanic emissions may also influence local-to-regional air quality, seriously affect the biosphere and environment, and the release of gas from soil may pose long-term health hazards. This session will focus on new results from integrative research on the climatic, environmental and societal impacts of the volcanic activity, including eruptions of Pinatubo-magnitude and larger, volcanic degassing and small eruptions.
ITS2.13/AS4.29 Text chats 08:30–12:30
Seismic risk mitigation involves various seismic hazard models, developed at different time scales and by different methods, as well as the use of information as complete and reliable as possible about past seismicity. Some recent large earthquakes caused extensive damage in areas where some models indicated low seismic hazard, leading to an increased demand for criteria to objectively assess how well seismic hazard models are performing. This session aims to tackle theoretical and implementation issues, as well as aspects of science policy and diplomacy, which are all essential elements towards effective disasters mitigation.
NH4.2 Text chats 08:30–10:15
Several subsystems of the Earth system have been suggested to react abruptly at critical levels of anthropogenic forcing. Well-known examples of such Tipping Elements include the Atlantic Meridional Overturning Circulation, the polar ice sheets and sea ice, tropical and boreal forests, as well as the Asian monsoon systems. Interactions between the different Tipping Elements may either have stabilizing or destabilizing effects on the other subsystems, potentially leading to cascades of abrupt transitions.
The critical forcing levels at which abrupt transitions occur have recently been associated with Tipping Points. It is paramount to determine the critical forcing levels beyond which the systems in question will abruptly change their state, with potentially devastating climatic, ecological, and societal impacts. This interdisciplinary session will address Tipping Points in the Earth system from the different perspectives of all relevant disciplines.
ITS3.1/NP1.2 Text chats 08:30–12:30
The powerful combination of high-resolution geochronological data, innovative isotopic geochemistry and petro-structural analysis is continuously progressing our understanding of geological processes within the Earth’s dynamic lithosphere. Moreover, the development of new techniques and improvement of analytical equipment inspire future progress and development. This session will highlight multiscale and multi-disciplinary approaches to the use of radiogenic isotopes in unravelling duration and mechanisms of geological processes in different environments.
GMPV1.7 Text chats 10:45–12:30
Every year approximately 350 million hectares of land are affected by wildfires, according to the Global Wildfire Information System. This global phenomenon is responsible for substantial environmental, social and economic losses and is becoming a persistent threat, since the fire risk is expected to increase in a context of a warmer and drier climate. The impacts of wildfires on soils and ecosystems severely affect ecosystem services supplies, such as raw material and water provisioning, carbon storage, erosion and flood control and habitat support, which are essential for human life. This session will bring together researchers who study the effects of wildfires on ecosystems from wildfire prevention to post-fire mitigation.
SSS9.10 Text chats 16:15–18:00
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Recent record-breaking wildfires in the Arctic, boreal forests, the Mediterranean and, at the same time, human-driven decreases in burned area in savanna ecosystems show the need of an increased understanding of the drivers and impacts of fire regime changes under ongoing and future land management and climate changes. Despite being a risk to many human societies today, fire has played an important role in our evolution and as a tool in land management for millennia. However, its role in biogeochemical cycles and ecosystem dynamics is still poorly constrained, partly due to its complex feedbacks with climate and vegetation. This symposium will provide state-of-the-art perspectives on the feedbacks and impacts of fires from different fields.
US3 LIVE 10:45–12:30
As women are impacted first and worst by climate change, it is crucial that their voices are represented in global decision making, research and science communication. This is especially important in geoscience as we are at the forefront of science and policy, contributing to IPCC reports and advising governments all over the world. It has never been more important to reach gender equity. This will only be achieved through conscious action and the support of the whole geoscience community. This session will bring together people working on all angles of gender equity in geoscience to share experiences, successes and challenges from initiatives aiming to increase gender diversity. Through this session, we hope to foster a network of support, collaboration and good practice and ultimately contribute to systemic change.
EOS6.2 Text chats 08:30–10:15
Career advances in academia is commonly considered to be meritocratic, meaning that there is a belief that anyone can succeed and be successful with hard work and dedication. However, discussions around the risk of bias inherent to a meritocratic system are increasing. This debate will focus on two immediate issues: the assumption that everyone has equal opportunities to access and, consequently, acquires merits; and that the assessment of merits is not always shaped and influenced by objective criteria that predict performance to the future task or position.
GDB1 LIVE 16:15–17:15
Climate change is projected to result in an increase in extreme and compound weather events, which pose a growing threat to human well-being and the achievement of the U.N. Sustainable Development Goals (SDGs). Further warming is also projected to reduce the efficacy of carbon sinks acting as negative feedbacks on warming and increase the risk of crossing tipping points and triggering cascading changes in the climate and ecosystems. These processes may reduce the Earth system’s resilience, which has the potential to further amplify climate change and extremes and worsen societal impacts. This session will discuss transdisciplinary and cross-scale contributions relating to climate extremes, tipping dynamics and Earth resilience, including the cascading impacts of extreme and compound events and the potential for rapid social transformations to global sustainability.
ITS3.2/NH10.7 Text chats 14:00–18:00
The Games Night is a space to gather, socialise and play some games. The catch is that all the games are based on geoscience! This will also be your chance to learn more about the games featured in the Games for Geoscience session.
NET1 LIVE 18:45–13:45
Structural geology and tectonics are two of the most visual subjects in geosciences, and lectures on the subjects form the core of curricula at geology departments at universities around the world. New teaching styles and technologies have found their way into class room and field courses focusing on Structural geology and tectonic, such as Blackboard LEARN, flipped class rooms, classroom response systems, digital mapping on tablets, the use of drones and virtual outcrops. This session will cover original and innovative ideas, strategies and tools regarding teaching Structural Geology and Tectonics.
EOS2.1 Text chats 14:00–15:45
One of the great things about the EGU General Assembly each year is seeing how our members bring enthusiasm, joy and creativity to their science, and nowhere is this more apparent than in the interactions with our Artists In Residence. This year, we’ll be featuring the masterpieces of two artists: Stacy Phillips (@Shtacy_Phillips), who will be creating a series of photographs of Lego scenes depicting the wide range of research being presented at this online conference, and Priyanka Das Rajkakati (@PriyankaSpace), who likes to experiment with graphs and equations and create animated images based on them. She will mainly be designing digital and algorithmic art. Look for their art online at #shareEGUart !
#shareEGUart ONLINE all week
EGU Today, the Union’s daily newsletter during Sharing Geoscience Online, helps keep you informed about what’s happening by highlighting sessions and events of broad interest from the programme. The newsletter, including previous issues, is available at https://www.egu.eu/egutoday/.
Twitter: @EuroGeosciences, #shareEGU20
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General info: https://egu2020.eu/