Societal Challenges - Artikel: Planetary boundaries: Exploring the safe operating space for humanity (2009)
6 important questions on Societal Challenges - Artikel: Planetary boundaries: Exploring the safe operating space for humanity (2009)
Rockström argues that due to anthropocene pressure on the Earth System, radical global environmental change is needed. Humans became the dominant driver in each system change, changing it from Holocene to anthropocene. What is Holocene?
This article discusses planetary boundaries that reflect the safe operating space for humans. What are the planetary boundaries?
Some systems have clear thresholds whereas others do not have this, but only have an uncertainty space. What do these concepts mean?
Insufficient knowledge of the exact thresholds create an uncertainty space.
Some systems do not have thresholds, because exceeding boundaries lead to interactions with global and regional thresholds.
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Nine planetary boundaries are described. Of which three are driven by systemic scale process and six are driven by regional processes. Some have thresholds, others not. Elaborate on this categorization.
- Climate change (T)
- Ocean acidification (T)
- Stratospheric Ozone (sort of T)
Regional process
- Global P and N cycles
- Atmospheric Aerosol loading
- Land usage
- Biodiversity loss
- Chemical pollution
The boundaries are set based on the assumption that other boundaries are not exceeded. Exceed in one can cause exceeding other boundaries. However, we already have exceeded 3 boundaries. Which?
2. Global P & N cycles
3. Biodiversity loss
What is the paradox for the massive change needed to solve the anthropocene situation?
The planetary boundaries create a framework for humans to operate in the paradox
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