As per Global Footprint Network, the tipping point (when Ecological Footprint exceeded Biocapacity) happened in 1971 (http://www.footprintnetwork.org/en/index.php/GFN/page/trends/world/) and apparently an irreversible ecological pattern has been triggered. I've NOT gone into the details of how it arrived at this data, but GFN has come up with past Earth Overshoot dates since 1971 (http://www.overshootday.org/newsroom/past-earth-overshoot-days/).
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As per Global Footprint Network, the tipping point (when Ecological Footprint exceeded Biocapacity) happened in 1971 (http://www.footprintnetwork.org/en/index.php/GFN/page/trends/world/) and apparently an irreversible ecological pattern has been triggered. I've NOT gone into the details of how it arrived at this data, but GFN has come up with past Earth Overshoot dates since 1971 (http://www.overshootday.org/newsroom/past-earth-overshoot-days/).
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