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Ecological crisis: Difference between revisions
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[[File:Planetary boundaries.png|alt=Planetary Boundaries framework (2022) showing 5 boundaries transgressed.|thumb|400x400px|Planetary Boundaries framework (2022) - climate change is only one of the 5 boundaries transgressed.<ref name=":1" />]] | [[File:Planetary boundaries.png|alt=Planetary Boundaries framework (2022) showing 5 boundaries transgressed.|thumb|400x400px|Planetary Boundaries framework (2022) - climate change is only one of the 5 boundaries transgressed.<ref name=":1" />]] | ||
'''In the 1960s, humans took about three-quarters of what the planet could regenerate annually.'''<ref name=":1">https://www.frontiersin.org/articles/10.3389/fcosc.2020.615419/full</ref> '''By 2016 this rose to 170 percent.''' We are now amidst''',''' a [[Ecological Crisis Timeline|great race]] between how fast we can get to a social tipping point versus the time it takes to reach a [[global ecological tipping point]]. Of the 9 recognised planetary boundaries we have already transgressed 5: | '''In the 1960s, humans took about three-quarters of what the planet could regenerate annually.'''<ref name=":1">https://www.frontiersin.org/articles/10.3389/fcosc.2020.615419/full</ref> '''By 2016 this rose to 170 percent.''' We are now amidst''',''' a [[Ecological Crisis Timeline|great race]] between how fast we can get to a [[social tipping point]] versus the time it takes to reach a [[global ecological tipping point]]. Of the 9 recognised planetary boundaries we have already transgressed 5: | ||
* '''Climate change''' - s''ince records began in 1880, nineteen of the twenty hottest years have occurred since 2000''<ref>NASA, Global Temperature: https://climate.nasa.gov/vital-signs/global-temperature/</ref>''.'' | * '''Climate change''' - s''ince records began in 1880, nineteen of the twenty hottest years have occurred since 2000''<ref>NASA, Global Temperature: https://climate.nasa.gov/vital-signs/global-temperature/</ref>''.'' | ||
*'''Biodiversity loss''' - there has been a 68% average decline in the population sizes of mammals, birds, amphibians, reptiles, and fish between 1970 and 2016<ref>IPBES, Media Release, Nature’s Dangerous Decline ‘Unprecedented’; Species Extinction Rates ‘Accelerating’ May 2019</ref>. | *'''Biodiversity loss''' - there has been a 68% average decline in the population sizes of mammals, birds, amphibians, reptiles, and fish between 1970 and 2016<ref>IPBES, Media Release, Nature’s Dangerous Decline ‘Unprecedented’; Species Extinction Rates ‘Accelerating’ May 2019</ref>. | ||