What is the Extinction Sundial and River Arthi? To contemplate the human relationship to global warming - the sixth extinction. The Sundial is Ephemeral to be in tune with evolution and change that is the true constant
This climate change focus project includes. 2 public gatherings - river diyas- to express gratitude. (Cannon and Mississippi). Saturday July 4, is the first - and the second is as part of the WAKPA triennial in St. Paul Spiral: River ~ Reverence ~ Raft Sign up in link, See informational PDF for grant info.
Pterygotus, a giant underwater relative of modern scorpions. Late Devonian Late Devonian 360 75% perished in a long climate shift leading to depleted oxygen in oceans.
Condylopyge, an eyeless arthropod, which is isopygous, meaning head and tail same size. 485 end Cambrian Extinction Interval
Crinoid: Triassic - Jurassic 201 80% Volcanism leading to too much CO2 in air, leading to the collpase of entire reef ecosystems. We still have many crinoids, but this specific one, Traumatocrinus, a large crinoid variety, perished.
Goniatites, a cephalopod. Permian - Triassic 252 96% marine and 70% land perished - Volcanism leading to acidic oceans
grapolites, this floating creature was one of the most common organisms of their time, when 85% of the life on earth was underwater.
Northern White Rhino: primary cause human poaching for sale of the horn to eastern markets due to its purported medicinal qualities and prestige.
Pteranodon: Cretaceous - Paleogene 66 75% all non avian dinosaurs perished Chicxulub asteroid
That Solar Shadow, as it measures life, It life resembles too.
(sundial mottoe from 1364)
The Holocene extinction, often called the Sixth Mass Extinction, is an ongoing, human-driven event that began roughly 12,000 years ago. Driven by unsustainable agriculture, deforestation, climate change, and overhunting, this crisis has elevated species extinction rates to tens or hundreds of times higher than the natural background rate. Here are a few images to ponder, I made the one showing some recently extinct creatures. The geology map is linked to the download if you would like one for your desktop :-)
Interesting Links- send me yours and I will add it!
https://www.nytimes.com/interactive/2025/03/06/climate/us-butterfly-population.html
https://www.synchronicityearth.org/global-amphibian-assessment-2-ii/