Starting in 2021, People for Earth, in collaboration with The Seoul Institute (from the 1st to 3rd sessions) and Gyeonggi Research Institute (from the 4th session onwards), hosts the Climate Change Colloquium. This event aims to facilitate discussions among domestic and international experts on various critical aspects of the current climate system, which is striving to achieve net-zero carbon emissions by 2050. The colloquium delves into topics such as the causes and background of this new climate system, the level of risk associated with specific situations, strategies to prevent surpassing tipping points in each domain, and the imperative for adapting and transforming our way of life and culture. The colloquium continues to evolve with the objective of enhancing public awareness while exploring alternative approaches during this transitional period.
Tipping elements in the Earth's climate system are continental-scale subsystems that are characterized by a nonlinear threshold behavior. These include biosphere components (e.g. the Amazon rainforest and coral reefs), cryosphere components (e.g. the Greenland and Antarctic ice sheets) and large-scale atmospheric and oceanic circulations (e.g. the thermohaline circulation, ENSO and Indian summer monsoon). Once operating near a threshold or tipping point that may be approached due to anthropogenic climate change, these components can transgress into a qualitatively different state by small external perturbations. The large-scale environmental consequences could impact the livelihoods of millions of people.
In this seminar, Dr Jonathan Donges reports on recent research on individual tipping elements such as the Antarctic Ice Sheet, reinforcing (positive) feedbacks on anthropogenic global warming mediated by cryospheric tipping elements, interactions between climate tipping elements and the risk for resulting tipping cascades. Finally, he will present work on the potentials for positive social tipping dynamics that could help to achieve the rapid decarbonization of the world’s social-economic systems needed to stabilize the Earth’s climate in line with the Paris climate agreement.