Complexity science meets Earth system
Jingfang Fan, Jun Meng, Xiaosong Chen, Hans Joachim Schellnhuber
Abstract
The Earth's climate system operates across multiple scales, driven by intricate interactions among natural processes and human activities. Understanding these dynamics is crucial for predicting future climate scenarios (days to decades) and their impacts on global environments and societies. These interactions span across atmospheric circulation, ocean currents, geological processes, and biological systems, influencing global climate variability and regional weather patterns. Given its complex and dynamic nature, the climate system serves as a focal point for studying intricate climate interactions. Variability in temperature gradients, atmospheric circulation patterns, and terrestrial vegetation affects global climate systems and their interconnectedness. As climate change accelerates, comprehending these interactions becomes increasingly urgent for mitigating risks and adapting to environmental shifts. The concept of ‘Earth system’ analysis, as highlighted in Ref. [3], emphasizes the need for a holistic approach to studying Earth's interconnected systems. This paradigm shift, likened to the transformative impact of the first Copernican revolution, calls for integrating knowledge across disciplines to fully grasp the complexities of our planet's systems.