- Feb 18, 2021
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A new report published in the Journal Nature Sustainability found that Earth has already crossed seven out of eight planetary boundaries, which are thresholds that define the safe operating space for humanity. The only boundary that has not yet been crossed is the one for chemical pollution.
The study, which was conducted by an international team of researchers, found that climate change, biosphere integrity, land-system change, freshwater use, and nitrogen and phosphorus cycles have all been pushed beyond safe limits. These changes are already having a negative impact on human health, food security, and the environment.
The eight planetary boundaries are:
The study found that Earth has already crossed seven of the eight planetary boundaries. The only boundary that has not yet been crossed is the one for chemical pollution. However, the researchers warn that this boundary is also under threat from human activity.
The study's findings are a sobering reminder of the challenges we face in protecting our planet. However, they also provide a roadmap for action. If we take the necessary steps now, we can still avoid the worst impacts of climate change and environmental degradation.
The study, which was conducted by an international team of researchers, found that climate change, biosphere integrity, land-system change, freshwater use, and nitrogen and phosphorus cycles have all been pushed beyond safe limits. These changes are already having a negative impact on human health, food security, and the environment.
The eight planetary boundaries are:
- Climate change
- Biosphere integrity
- Land-system change
- Freshwater use
- Nitrogen and phosphorus cycles
- Ocean acidification
- Stratospheric ozone depletion
- Atmospheric aerosol loading
The study found that Earth has already crossed seven of the eight planetary boundaries. The only boundary that has not yet been crossed is the one for chemical pollution. However, the researchers warn that this boundary is also under threat from human activity.
The study's findings are a sobering reminder of the challenges we face in protecting our planet. However, they also provide a roadmap for action. If we take the necessary steps now, we can still avoid the worst impacts of climate change and environmental degradation.