Harmful tipping points in the natural world pose some of the gravest threats faced by humanity. Their triggering will severely damage our planet’s life-support systems and threaten the stability of our societies.
In the Summary Report:
• Narrative summary
• Global tipping points infographic
• Key messages
• Key Recommendations
Executive summary
• Section 1
• Section 2
• Section 3
• Section 4
This report is for all those concerned with tackling escalating Earth system change and mobilising transformative social change to alter that trajectory, achieve sustainability and promote social justice.
In this section:
• Foreword
• Introduction
• Key Concepts
• Approach
• References
Considers Earth system tipping points. These are reviewed and assessed across the three major domains of the cryosphere, biosphere and circulation of the oceans and atmosphere. We then consider the interactions and potential cascades of Earth system tipping points, followed by an assessment of early warning signals for Earth system tipping points.
Considers tipping point impacts. First we look at the human impacts of Earth system tipping points, then the potential couplings to negative tipping points in human systems. Next we assess the potential for cascading and compounding systemic risk, before considering the potential for early warning of impact tipping points.
Considers how to govern Earth system tipping points and their associated risks. We look at governance of mitigation, prevention and stabilisation then we focus on governance of impacts, including adaptation, vulnerability and loss and damage. Finally, we assess the need for knowledge generation at the science-policy interface.
Focuses on positive tipping points in technology, the economy and society. It provides a framework for understanding and acting on positive tipping points. We highlight illustrative case studies across energy, food and transport and mobility systems, with a focus on demand-side solutions (which have previously received limited attention).
Laura Pereira, Therezah Achieng, Azucena Castro, Sara M. Constantino, Ashish Ghadiali, Lauren Gifford, Peter Newell, Ben Smith, Steven R. Smith, Sebastian Villasante, Caroline Zimm
Laura Pereira, Therezah Achieng, Azucena Castro, Sara M. Constantino, Ashish Ghadiali, Lauren Gifford, Peter Newell, Ben Smith, Steven R. Smith, Sebastian Villasante, Caroline Zimm
Earth system tipping points pose existential threats to current and future generations. Those least responsible for causing them are often most at risk. Positive tipping points (PTPs) have the potential to beneficially transform societies, but they carry their own risks. positive tipping points should not perpetuate or create unjust or inequitable outcomes. For example, in our urgency to transition to electric vehicles, the demand for more cobalt and lithium to produce batteries should not come at the expense of creating sacrifice zones and destroying communities elsewhere in the world. Consideration of what needs to change, who is being asked to change, where the change or its impacts will be felt, and by whom, are fundamental questions that require a level of reflexivity and systemic understanding in positive tipping point governance and other decision making.
All actors have a role to play in ensuring that risks, justice, equity and ethics are carefully considered prior to and during interventions. Enabling positive tipping points for radical transformation could benefit from more diverse perspectives to open up solutions, with a particular emphasis on the inclusion of marginalised voices. Taking a precautionary and systemic approach to positive tipping interventions and stepping back to explore all options, not just those appearing to offer a quick fix, should help ensure more socially just and environmentally sustainable outcomes.