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Is this butterfly a canary? (9 Jan, 2019)

PostPosted: Wed Jan 09, 2019 3:58 am
by aardvark_admin
This column is archived at: https://aardvark.co.nz/daily/2019/0109.shtml

Are we overlooking some rather significant warnings being sent by nature in respect to the sudden decline of what migh turn out to be key indicator species?

Are these just coincidences -- or are we being reminded that climate change is a growing threat to all life on the planet?

Wade in with your observations and opinions -- free speech is allowed here :-)

Re: Is this butterfly a canary? (9 Jan, 2019)

PostPosted: Wed Jan 09, 2019 4:36 pm
by Muscular Jam
I think our modern society faces numerous challenges to its sustainability. Overexploitation, Loss of arable farmland, build up of residues such as cadmium and pesticides in fertilised soils, destruction of native habitats to make room for more farmlands, contamination of groundwater, plastic nanoparticle waste, CO2 buildup, Ocean acidification; the list goes on and on. Which will be THE ONE Cause that finishes our current level of society off? Maybe it won't be just one, maybe it will be a combination of factors.

443 million years ago a severe ice age wiped out 60-70% of all species.
360 million years ago another climate change event killed 70% of species including almost all corals.
250 million years ago volcanic eruptions in Siberia caused global warming and more than 95% of species perished.
200 million years ago 75% of species wiped out, probably by volcanism.
65 million years ago a giant asteroid hit Mexico just after large volcanic eruptions in what is now India. Bye bye dinosaurs.
Right now we appear to be in the middle of the sixth mass extinction. https://www.biologicaldiversity.org/programs/biodiversity/elements_of_biodiversity/extinction_crisis/