Safe Planetary Boundaries: Difference between revisions
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==Discussion== | |||
Stockholm Resilience Centre: | |||
Stockholm Resilience | |||
"Transgressing planetary boundaries may be devastating for humanity, but if we respect them we have a bright future for centuries ahead. | "Transgressing planetary boundaries may be devastating for humanity, but if we respect them we have a bright future for centuries ahead. | ||
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The Nine boundaries identified were: | The Nine boundaries identified were: | ||
* climate change | |||
* stratospheric ozone | |||
* land use change | |||
* freshwater use | |||
* biological diversity | |||
* ocean acidification | |||
* nitrogen and phosphorus inputs to the biosphere and oceans | |||
* aerosol loading | |||
* chemical pollution. | |||
The study suggests that three of these boundaries (climate change, biological diversity and nitrogen input to the biosphere) may already have been transgressed. In addition, it emphasizes that the boundaries are strongly connected — crossing one boundary may seriously threaten the ability to stay within safe levels of the others." | The study suggests that three of these boundaries (climate change, biological diversity and nitrogen input to the biosphere) may already have been transgressed. In addition, it emphasizes that the boundaries are strongly connected — crossing one boundary may seriously threaten the ability to stay within safe levels of the others." | ||
(http://www.stockholmresilience.org/planetary-boundaries) | (http://www.stockholmresilience.org/planetary-boundaries) | ||
==More Information== | |||
=More Information= | ===Related Pages on this Wiki=== | ||
* [[Planetary Boundaries]] | |||
* | * [[Doughnut Economics]] | ||
* Videos: | |||
#[[ | *#[[Kate Raworth on Social and Planetary Boundaries]] | ||
#[[Johan Rockström on Planetary Boundaries]] [http://www.ted.com/talks/view/lang/en//id/945] | *#[[Johan Rockström on Planetary Boundaries]] [http://www.ted.com/talks/view/lang/en//id/945] | ||
#See also video with Professor Foley, explaining the boundaries and the importance of not transgressing them. Via [http://www.stockholmresilience.org/planetary-boundaries] | ===External Links=== | ||
*#See also video with Professor Foley, explaining the boundaries and the importance of not transgressing them. Via [http://www.stockholmresilience.org/planetary-boundaries] | |||
Latest revision as of 15:31, 6 August 2019
Discussion
Stockholm Resilience Centre:
"Transgressing planetary boundaries may be devastating for humanity, but if we respect them we have a bright future for centuries ahead.
The group of scientists including Hans Joachim Schellnhuber, Will Steffen, Katherine Richardson, Jonathan Foley and Nobel Laureate Paul Crutzen, have attempted to quantify the safe biophysical boundaries outside which, they believe, the Earth System cannot function in a stable state, the state in which human civilizations have thrived.
The scientists first identified the Earth System processes and potential biophysical thresholds, which, if crossed, could generate unacceptable environmental change for humanity. They then proposed the boundaries that should be respected in order to reduce the risk of crossing these thresholds.
The Nine boundaries identified were:
- climate change
- stratospheric ozone
- land use change
- freshwater use
- biological diversity
- ocean acidification
- nitrogen and phosphorus inputs to the biosphere and oceans
- aerosol loading
- chemical pollution.
The study suggests that three of these boundaries (climate change, biological diversity and nitrogen input to the biosphere) may already have been transgressed. In addition, it emphasizes that the boundaries are strongly connected — crossing one boundary may seriously threaten the ability to stay within safe levels of the others." (http://www.stockholmresilience.org/planetary-boundaries)
More Information
Related Pages on this Wiki
External Links
- See also video with Professor Foley, explaining the boundaries and the importance of not transgressing them. Via [2]