| Earth’s Health Failing in Seven Out of Eight Key Measures Jonathan Watts - The Guardian | |
| go to original June 2, 2023 |
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(United Nations)
Human activity has pushed the world into the danger zone in seven out of eight newly demarcated indicators of planetary safety and justice, according to a groundbreaking analysis of the Earth’s wellbeing.
Going beyond climate disruption, the report by the Earth Commission group of scientists presents disturbing evidence that our planet faces growing crises of water availability, nutrient loading, ecosystem maintenance and aerosol pollution. These pose threats to the stability of life-support systems and worsen social equality.
The study, which was published in Nature this week, is the most ambitious attempt yet to combine vital signs of planetary health with indicators of human welfare.
Prof Johan Rockström, one of the lead authors, said: “It is an attempt to do an interdisciplinary science assessment of the entire people-planet system, which is something we must do given the risks we face.
“We have reached what I call a saturation point where we hit the ceiling of the biophysical capacity of the Earth system to remain in its stable state. We are approaching tipping points, we are seeing more and more permanent damage of life-support systems at the global scale.”
The Earth Commission, which was established by dozens of the world’s leading research institutions, wants the analysis to form the scientific backbone of the next generation of sustainability targets and practices, which extend beyond the current focus on climate to include other indices and environmental justice. It hopes that cities and businesses will adopt the targets as a way to measure the impact of their activities.
The study sets out a series of “safe and just” benchmarks for the planet that can be compared to the vital signs for the human body. Instead of pulse, temperature and blood pressure, it looks at indicators such as water flow, phosphorus use and land conversion.
The boundaries are based on a synthesis of previous studies by universities and UN science groups, such as the Intergovernmental Panel on Climate Change and the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services.
The situation is grave in almost every category. Setting global benchmarks is challenging. For climate, the world has already adopted a target to keep global heating as low as possible between 1.5C to 2C above pre-industrial levels. The Earth Commission notes that this is a dangerous level because many people are already badly affected by the extreme heat, droughts and floods that come with the current level of about 1.2C. They say a safe and just climate target is 1C, which would require a massive effort to draw carbon dioxide from the atmosphere. They note it is impossible to stabilize the climate without protecting ecosystems.
Read the rest at The Guardian
Related: Climate Carnage: Things Can Only Get Worse (Inter Press Service)
Related: Earth Is ‘Really Quite Sick Now’ and in Danger Zone In Nearly All Ecological Ways, Study Says (Associated Press)
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