Volume 127, Number 5, September 2019
|Number of page(s)||6|
|Section||Geophysics, Astronomy and Astrophysics|
|Published online||09 October 2019|
A phase space description of the Earth System in the Anthropocene
Departamento de Física e Astronomia and Centro de Física do Porto, Faculdade de Ciências, Universidade do Porto - Rua do Campo Alegre 687, 4169-007 Porto, Portugal
Received: 22 July 2019
Accepted: 28 August 2019
Based on a dynamic systems approach to the Landau-Ginzburg model, a phase space description of the Earth System (ES) in the transition to the Anthropocene is presented. It is shown that, for a finite amount of human-driven change, there is a stable equilibrium state that is an attractor of trajectories in the system's phase space and corresponds to a Hothouse Earth scenario. Using the interaction between the components of the ES, it is argued that, through the action of the Technosphere, mitigation strategies might arise for which the deviation of the ES temperature from the Holocene average temperature is smaller.
PACS: 92.70.Pq – Earth system modeling / 05.45.-a – Nonlinear dynamics and chaos / 05.70.Fh – Phase transitions: general studies
© EPLA, 2019
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