I think the fact that the asteroid has become a meme for mass extinction might be a bad thing when most mass extinctions are actually caused by climate change like the one being caused today
almost like a joke can allow people to ignore reality or something
20260411 Nagoya Science Museum 3 by Bong Grit
Via Flickr:
有名になりすぎたサカバンバスピスの復元模型。たしかにかわいい。 Photo taken at FUJI Nagoya Science Museum, Naka ward, Nagoya city, Aichi pref.
How do I explain to the students in this same environmentally-based course as myself that, given humans have been killing off millions of their own kind in the US alone for the past 50-so years, it should be absolutely no surprise, and even be expected, in a sense, that we will be causing mass extinctions of species that aren't our own at the same time?
The Most Hardcore Period in Earth’s History, or the Permian, was preceded by a complete ecosystem collapse, and featured three different major mass extinction events - including the largest in earth’s history, the Great Dying, which lead to nearly all life on earth dying out.
During the Permian, all the land on Earth was in one supercontinent, called Pangea; and all the water was in one ocean, called Panthalassa. This meant that life intermingled and expanded all over the world, more so than it was able to in other periods (besides the Triassic, which also featured a single continent and a single ocean).
Pangea, and the Permian, was characterized by extremes. The beginning of the Period featured the end of the Karoo Ice Age - the poles were filled with ice caps, the center of the continent was dry, and temperature extremes were found throughout the land and ocean. The end featured multiple mass extinctions and a rapid warming of the continent, reaching the extreme heat of the Triassic period.
By @franzanth
The Carboniferous Rainforest Collapse was primarily caused by an intensification of that ice age - leading to the start of the Permian featuring dry, harsh, extreme climates. This time period featured the rapid diversification and specialization of some of the earliest animals adapted for a dry existence - prior to now, life almost entirely existed in the oceans, or in the forested and swampy world of the Carboniferous. This was the first truly dry time for (at least some) life.
By @alphynix
Olson’s Extinction marked a change from that initial habitat in the Cisuralian epoch to the next, the Guadalupian. As the world began to rapidly warm after the Karoo Ice Age ended, this lead to a major extinction of plants and vertebrates especially. The vertebrates would not fully recover before the Triassic; however, it did lead to many new forms, especially among synapsids, appearing in the new vacant environmental roles.
(By @paleoart)
The Capitanian Extinction was caused by the explosion of a moderately sized laval flow system, the Emeishan Traps, which lead to immediate global cooling followed by rapid global warming. This greatly affected ocean chemistry, making it far more acidic than previously. Many reef animals were killed by this extinction, in addition to brachiopods; many vertebrates were also affected.
(By @paleoart)
So the Permian was a hard, broken world when the Siberian Traps - one of the largest lava flows in Earth’s History, and one of the largest volcanic events known - exploded, leading to even more dramatic climate change and extremely rapid global warming. This lead to acidification of the ocean’s and a dramatic drop in ocean oxygen. Almost every group of organisms was dramatically affected, and this extinction was the largest known in Earth’s History, with between 85-96% of life on Earth dying out (and some researchers thinking it may have even been higher), leading to this extinction being dubbed The Great Dying. Many groups utterly disappeared, despite having been features of the entire Paleozoic Eon (the eon that the Permian was at the end of) - trilobites, eurypterids, “spiny sharks”, tabulate and rugose corals, and blastoids complete disappeared, as did many other groups. Brachiopods, Gastropods, Ammonites, Radiolarians, Foraminiferans, Crinoids, and most Parareptiles also went extinct, as did many synapsids and amphibians. It was an utter catastrophe.
(By @paleoart)
The Permian was a time of extensive hardship, dramatic changes, and extinction event after extinction event. Life was truly on the brink - just as it was beginning to settle into terrestrial existence. So new animals, from insects to amniotes to conifers, spent their school years in a prehistoric hunger games - and only a few species managed to reach the weirdness kiln of the Triassic.
Your friend commenting is such bullying . Nice . I am a lecturer of chemistry so think I’m in the know. Can you give me evidence of climate change ? As we are suppose to be in an ice age and aren’t . Clearly you’ve been watching Disney’s ice age , which is based on real events with a made up story. I love that film. I’m sure you do to being that you are doing geography. How do you feel about ice age ?
As I have said to previous anon’s, I don’t control what my followers do. Also saying that ‘David would be upset’ really isn’t bullying, because David Attemborough would be upset at the situation... He’s done his best to educate people on the current situation and the effects of climate change on the world and sadly some people are still ignorant to the risks and how we could ruin our planet. I’m gonna put some facts etc under the cut so read at your own risk:
There is proof of climate change being an issue throughout geological history, all from different causes but the same problem
A mass amount of CO2 in the atmosphere
Take the Permian-Triassic mass extinction event (the biggest mass extinction in history) it was caused by mass anoxia in the ocean
This was due to CO2 being released from the Siberian Traps volcanic system and the lighting of coal deposits. It released gigatonnes of CO2 into the atmosphere
Theres a lot of science behind it but basically it shifted the balance of heavy and light carbon in the atmosphere and oceans causing almost all terrestrial and marine life to die out...
This is one of the effects of climate change
And yes it doesn’t happen overnight (only in certain cases) but this is what can happen if we don’t act fast...
We have already lost mass amounts of habitats across the globe because of climate change
And yes climate fluctuations are completely normal... but by 0.1-0.5 degrees, not 2,3,4,5,6+ degrees thats dangerous....
As i said previously the permian-triassic mass extinction caused a climate shift of 6 degrees and it sent the earth into environmental turmoil....
But also climate change doesn’t just refer to the warming of the earth (its why i hate the term global warming) but just the shift in climate generally
So while one part of the earth is heating (ice caps are melting and places like kilimanjaro are no longer covered in snow when they should be) another part of the earth is cooling...
Look at the melting of ice caps/icebergs in Chubut, Santa Cruz and Tierra del Fuego
It also disrupts weather systems and the monsoon, that certain countries rely on to survive...
Worse storms etc
Also, i just want to say that i really respect the hard work you must have put in to become a chemistry lecturer, however saying this doesn’t make you all knowing in such a broad subject as climate change
And especially doesn’t mean you can disregard other peoples hard work within sub-divisions of research, especially when they can specialise in certain areas such as palaeoclimate and climate in general
Also yes i do love ice age, but i am smart enough to be able to tell fiction from the real life... and i’m a geologist not geographer they are 2 pretty different fields...
Also we are meant to be in a little ice age (or more like a fluctuation to cooler temperatures, ice age is quite an extreme term, more like the LIA), however human activity and the amount of CO2 being put in the atmosphere is counteracting the cooling and therefore we could be in a new geological time period all which i said here!
There are also plenty of facts on this post as well as plenty of ignorant people...
I recommend watching some David Attenborough documentaries (there are also some really interesting docuseries on disney plus that are really informative as well, one strange rock is one of them)
And yes this is happening fairly slowly for now and might not affect you, but it definitely will effect your children and grand-children... and if we are not careful it will come sooner than you think
We are at the start of a mass extinction and barely anyone seems to care...
Useful articles on climate change:
https://www.researchgate.net/publication/232535353_Lethally_Hot_Temperatures_During_the_Early_Triassic_Greenhouse ~ This is about past climate but proves that climate change is definitely a thing to be concerned about...
https://climate.nasa.gov/blog/2953/there-is-no-impending-mini-ice-age/ ~ About current situations, a really interesting graph that points out why we aren’t due an ice age...
https://climate.nasa.gov/evidence/ ~ This also has quite a few facts about the effects it has around the globe
https://www.bbc.co.uk/programmes/p076w7g5 ~ 4 minute video from David Attemborough
https://www.nationalgeographic.com/environment/article/global-warming-overview/ ~ National Geographic article
I’m just trying to educate people honestly i’m not here for a fight... Hope this has been helpful to people, feel free to rb and spread the word! People need educating <3
What your favorite mass extinction event says about you
Great Oxidation Event: You struggle with simple tasks. Having a body is oppressive. Your ideal life can best be described as “just vibin’“
Ordovician-Silurian: You like to just stare at the landscape and marvel at how large and strange it is. You think a lot about the passage of time. The fact that eventually the sun will consume the earth affects your daily plans.
Late Devonian: Nature is gross and you don’t like it. You have huge issues with trust and vulnerability. You don’t really get people who have pets; they’re just another mouth you have to feed
Permian-Triassic: The world is awful, so it’s very important for us to be kind to each other. Your favorite social event is tea. Your aesthetic is usually described as “soft” but secretly, you think volcanos are pretty cool.
Triassic-Jurassic: You listen to true crime podcasts and keep lists of clues that might be important. You care about “fair play” in murder mysteries. You’ve brought up at least one mysterious disappearance in a casual conversation
Cretaceous-Paleogene: You liked dinosaurs when you were a kid. You had a favorite and it was probably the tyrannosaurus. You don’t really think about mass extinctions much.
Anthropocene: You have an account just for politics, but you also post politics on the regular one. You know there is no ethical consumption under capitalism but you still make choices carefully. People often accuse you of being unreasonable, but actually, you’re completely right.