Detecting Climate Change Natural Causes of Climate Change ...
Earth's Life Support System - ODU€¦ · Climate change and sea level rise are symptoms, not the...
Transcript of Earth's Life Support System - ODU€¦ · Climate change and sea level rise are symptoms, not the...
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Holocene “Normal Range” up to 1900 (800,000 years)
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“Normal Range” up to 1900 (800,000 years)
“Current State”
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We are moving out of the Holocene and the “safe operating space for humanity” (Rockstroem et al., 2009): Climate Change (***)
Ocean acidification (**)
Stratospheric ozone depletion (*)
Nitrogen (******) and Phosphorous cycles (**)
Global freshwater (*)
Change in land use (*)
Biodiversity loss (*******)
Atmospheric aerosols (?)
Chemical pollution (?)
Climate change and sea level rise are symptoms, not the cause, the “sickness.” Rockstrom and Klum, 2015
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Holocene: Stability
20th and 21st Century: Change,
imbalance
Future: Uncertainty
Text
10.000 BC 1,900 AD 2,000 AD
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“Normal Range” (800,000 years)
“Current State”
“Prognosis”
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1 C
2
3
4 } IPCC Assessment: Very Likely by 2100
o
Marcott et al., 2013
<--Holocene--->
<--Post-Holocene
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“What is good for Earth’s life support system is good for humanity”
Economy for humanity: “An economy that meets our needs while safeguarding Earth’s life-support system, on which the welfare of current and future generations depends.”
Economy is the link between humanity and Earth’s life-support system