Ecological crisis: Difference between revisions

Revision as of 03:51, 10 February 2022

Planetary Boundaries

We are rapidly heading towards a global crisis:

Climate change - since records began in 1880, nineteen of the twenty hottest years have occured since 2000^[1].
Biodiversity loss - there has been a 68% average decline in the population sizes of mammals, birds, amphibians, reptiles, and fish between 1970 and 2016^[2].
Deforestation - more than half the world’s tropical forests have been destroyed since the 1960s^[3].
Ocean acidification - more CO2 in the atmosphere means more acidity in the oceans.
Ozone depletion
Microplastics via overconsumption.
the nitrogen cycle
the phosphorus cycle

These issues combined are accelerating us towards collapse.

↑ NASA, Global Temperature: https://climate.nasa.gov/vital-signs/global-temperature/
↑ IPBES, Media Release, Nature’s Dangerous Decline ‘Unprecedented’; Species Extinction Rates ‘Accelerating’ May 2019
↑ International Union for Conservation of Nature. (2021, February). Deforestation and forest degradation. https://www.iucn.org/resources/issues-briefs/deforestation-and-forest-degradation

@@ Line 1: / Line 1: @@
 [[File:Planetary Boundaries.png|alt=Planetary Boundaries|thumb|Planetary Boundaries]]
-''We are rapidly heading towards crisis:''
+''We are rapidly heading towards a global crisis:''
-* '''Global temperatures''' - s''ince records began in 1880, nineteen of the twenty hottest years have occured 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 occured 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>.
 *'''Deforestation''' - more than half the world’s tropical forests have been destroyed since the 1960s<ref>International Union for Conservation of Nature. (2021, February). ''Deforestation and forest degradation''. <nowiki>https://www.iucn.org/resources/issues-briefs/deforestation-and-forest-degradation</nowiki></ref>.