New report shows key indicators of Earth’s health are ‘outside the safe operating space’ as climate disaster looms
he planetary life support systems relied upon by humans have deteriorated to their worst levels ever recorded amid ongoing pollution and habitat destruction, according to a key yet grim annual update by scientists.
Of the nine “planetary boundaries” that help determine whether life can flourish on Earth, seven are being breached at their highest ever levels of transgression, according to the latest planetary health check, a process that was established in 2009.
The seven key indicators in the danger zone include climate change, change in biosphere integrity, land system change, freshwater change, modification of biogeochemical flows, introduction of novel entities and, for the first time last year, ocean acidification.
Only two of the assessed areas, stratospheric ozone depletion and atmospheric aerosol loading, have shown improvement over the last decade, although researchers warn that atmospheric aerosols, which can form air pollution, are still a problem in several regions of the world.
The coalition of 60 scientists who conducted the analysis of the key guardrails for human life under the auspices of the Potsdam Institute for Climate Impact Research warned that the consequences of breaching these planetary boundaries is “becoming increasingly clear all around us”.
“The diagnosis is unambiguous – pressure is rising across every planetary boundary already outside the safe operating space,” said Boris Sakschewski, lead author of the report. “It means that the risk of large-scale, persistent and potentially irreversible change is increasing, while our margin for error in tackling these problems is shrinking.”
While there is little time to reverse this parlous situation, humanity does still possess the knowledge and capacity to do so, according to Johan Rockström, a climate scientist and report co-author. “Accelerating action to return to the safe operating space across all planetary boundaries is essential to protect lives and livelihoods, and to deliver on the promise of shared future prosperity,” he said…..
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