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).
Media, and all climate communicators, must be alert to the competing ideologies, values and systems of power that affect which messages are communicated and how that message is interpreted by different communities. This is particularly relevant in relation to the language of ‘positive’ and ‘negative’ tipping points, which can imply a universality of effect that is insensitive to the diverse experiences and responsibilities of different communities. Knowledge does not automatically lead to enlightened action (Norgaard, 2011). Certain facts and emphases – for example, emphasising the risks of climate breakdown rather than the co-benefits of climate action – may serve to further entrench dismissive perceptions of climate change (Bain et al., 2012). There is therefore a need to shift away from linear, ‘information-deficit’ models of communication towards values-inclusive, reflective and creative dialogues (Gaertner and Dovidio, 2014; Stirling, 2010). Communication strategies should be tailored to and co-produced with the communities they are seeking to engage (Climate Outreach, 2020). Media and communication organisations must not see themselves as neutral information transmitters, but as actors in a complex, nonlinear system that is entangled with issues of knowledge and power.