What are the planetary boundaries proposed for human impact limitations?



  1. 0 Votes

    The article linked below discusses the current scientific thinking on this concept quite in depth. Some of the most interesting boundaries mentioned are listed here for your convenience:

    • CO2 Concentration- 350 parts per million
    • Biodiversity Loss (Extinction Rate)-  10 per million
    • Freshwater Consumption- 4,000 cubic kilometers
    • Ozone Layer Concentration- 276 Dobson Units

    As far as population size, not mentioned in this article, I’ve read between 9-10 billion people though this depends greatly on their level of consumption.

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