The stability and resilience of the Earth system and human well-being are inseparably linked1-3, yet their interdependencies are generally under-recognized; consequently, they are often treated independently4,5. Here, we use modelling and literature assessment to quantify safe and just Earth system boundaries (ESBs) for climate, the biosphere, water and nutrient cycles, and aerosols at global and subglobal scales. We propose ESBs for maintaining the resilience and stability of the Earth system (safe ESBs) and minimizing exposure to significant harm to humans from Earth system change (a necessary but not sufficient condition for justice)4. The stricter of the safe or just boundaries sets the integrated safe and just ESB. Our findings show that justice considerations constrain the integrated ESBs more than safety considerations for climate and atmospheric aerosol loading. Seven of eight globally quantified safe and just ESBs and at least two regional safe and just ESBs in over half of global land area are already exceeded. We propose that our assessment provides a quantitative foundation for safeguarding the global commons for all people now and into the future. 

/pdf/safe-and-just-earth-system-boundaries-2q2mf18l.pdf

Safe and just Earth system boundaries

<h2>Summary</h2> Despite decades of increasing investment in conservation, we have not succeeded in "bending the curve" of biodiversity decline. Efforts to meet new targets and goals for the next three decades risk repeating this outcome due to three factors: neglect of increasing drivers of decline; unrealistic expectations and time frames of biodiversity recovery; and insufficient attention to justice within and between generations and across countries. Our Earth system justice approach identifies six sets of actions that when tackled simultaneously address these failings: (1) reduce and reverse direct and indirect drivers causing decline; (2) halt and reverse biodiversity loss; (3) restore and regenerate biodiversity to a safe state; (4) raise minimum wellbeing for all; (5) eliminate over-consumption and excesses associated with accumulation of capital; and (6) uphold and respect the rights and responsibilities of all communities, present and future. Current conservation campaigns primarily address actions 2 and 3, with urgent upscaling of actions 1, 4, 5, and 6 needed to help deliver the post-2020 global biodiversity framework. 

Achieving a nature- and people-positive future

Reconciling safe planetary targets and planetary justice: Why should social scientists engage with planetary targets?

Resilience to Air Pollution: A Novel Approach for Detecting and Predicting Aerosol Atmospheric Rivers within Earth System Boundaries

<h2>Summary</h2> Despite numerous pledges to the contrary, corporate activities are inflicting environmental harm and are pushing the Earth system toward and beyond planetary boundaries. Several sustainability accounting frameworks exist, designed to track corporate environmental impacts through corporate reporting, and there is currently a push toward standardization of these. However, most sustainability accounting frameworks still fail to fully capture the connections between corporate activities and impacts, as they depart from what is important for the companies (materiality assessments) and often rely on relative metrics. Here, we propose 15 essential environmental impact variables (EEIVs), applicable to all sectors, based on absolute metrics and what is essential for staying within the planetary boundaries. We argue that standardization must rather depart from these underlying premises. By designing EEIVs for seven primary industries with large environmental footprints and demonstrating the operationality via the aquaculture sector, we show how EEIVs efficiently identify the most important corporate impact information while increasing transparency between companies and stakeholders, thus enabling external assessment of corporate sustainability. 

Essential environmental impact variables: A means for transparent corporate sustainability reporting aligned with planetary boundaries

A global agenda-setting opportunity to reverse ongoing planetary destruction is coming in 2022 with Stockholm+50. The independent Earth Commission will propose a safe and just corridor for humanity to spearhead its transformative agenda, defining goals for a stable Earth integrating justice.

Stockholm to Stockholm: Achieving a safe Earth requires goals that incorporate a just approach

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Stockholm to Stockholm: Achieving a safe Earth requires goals that incorporate a just approach