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).
Nadia Ameli, Hugues Chenet, Max Falkenberg, Sumit Kothari, Jamie Rickman, Francesco Lamperti
Nadia Ameli, Hugues Chenet, Max Falkenberg, Sumit Kothari, Jamie Rickman, Francesco Lamperti
As of today, the financial sector is fuelling an economy currently on a trajectory towards ~3°C by 2100. Leveraging the tipping elements inherent in financial markets will be critical to direct economies onto a net-zero emission trajectory compatible with the 1.5ºC-2°C goal of the Paris Agreement. Taken together, the mechanisms we describe in this section highlight the positive tipping points that can be triggered within the financial system and emphasise the necessity of policy interventions to activate and capitalise on these dynamics. The financial system must assume a central role in expediting the shift towards a net-zero carbon economy. For this, the alignment of expectations between investors and policymakers is key, requiring clear transition plans and strategies. Utilisation of public finance, reduction of capital costs and attainment of low-carbon investment thresholds in the Global South and Global North are also indispensable to ensure capital allocation towards where it is most needed. Coordination will be essential, to foster implementation of robust financial regulations along with industrial and climate policy. The identification of critical intervention points can lead to the amplification of sustainable investments, mitigate risks and foster transformative changes in the practices of the financial sector.