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gotta love extinction science

It's one of their biggest moments since multicellular life evolved

Great question, I glad you asked. When I said both multicellular and microbial life would be fine, what I meant is it's unlikely either would be wiped totally out.

As highlighted in the article you linked, only about 90% of [multicellular] species died out during the Permian-Triassic Extinction Event, specifically the "things have been worse before" situation I was thinking about. Also noted in the article is that the conditions we're experiencing now are not to the same degree although we're observing events similar to what we understand may have happened during the Permian-Triassic Extinction, again to a much lesser degree.

Keep in mind atmospheric CO2 levels were estimated to be around 2500 ppm, about 6 times greater than our current levels of around 420 ppm. Preindustrial CO2 levels were 270 ppm, so we've added about 150 ppm. It's not all that much but it's enough to start changing things for the worse for many of the planet's current inhabitants.

As to microbial life, I'm a microbiologist so I know my microbes. They as a whole are far more resilient and will outlast all multicellular life. Some thrive in conditions where no multicellular life on Earth could survive. Even if conditions were so hostile than no microbes could survive, some form endospores. These are incredibly resilient little escape pods that can remain viable for millions of years, then reactivate when conditions are better, reconstituting back to bacteria.

While extinctions are frankly depressing, they do open ecological niches into which other species with suitable traits can expand and, given time and selective pressure, differentiate. For example, all we'd need is mice and a suitable food source to survive and, a few million years later, the earth will be covered with various species decended from both of them.

What are you basing this on? Like what scientific knowledge exactly? That life will find a way? You realize the "scientist" in Jurassic Park who said that wasn't a real scientist????

Look at every other planet. Do any of them have life? What makes you so blindingly confident this planet won't join them? We are in a mass extinction right now due to unprecedented rapid climate change. The only life left might just be extremophiles and they may never be able to evolve to be multicellular. And not even extremopjiles can survive everything.

That people are so casual about this shows a profound lack of scientific knowledge.

Humans aren't selfish, greedy, parasites. We just get brainwashed into being that way by our culture

Our carcasses could end up being petrochemicals of the emerging life forms.

No, by definition of what's alive, which is already scientifically described. That's my entire point, is that the people commenting on this are laypeople without scientific understanding or basis. I'm trying to correct that because our scientific ignorance is literally killing us.

A rock is not alive. A volcano is not alive. This is grade school science. This is what "biology" is.

https://www.khanacademy.org/science/biology/intro-to-biology/what-is-biology/a/what-is-life

Properties of life

Biologists have identified various traits common to all the living organisms we know of. Although nonliving things may show some of these characteristic traits, only living things show all of them.

1. Organization Living things are highly organized, meaning they contain specialized, coordinated parts. All living organisms are made up of one or more cells, which are considered the fundamental units of life.

2. Metabolism Life depends on an enormous number of interlocking chemical reactions. These reactions make it possible for organisms to do work—such as moving around or catching prey—as well as growing, reproducing, and maintaining the structure of their bodies. Living things must use energy and consume nutrients to carry out the chemical reactions that sustain life. The sum total of the biochemical reactions occurring in an organism is called its metabolism.

3. Homeostasis Living organisms regulate their internal environment to maintain the relatively narrow range of conditions needed for cell function. For instance, your body temperature needs to be kept relatively close to 98.6 [^\circ]F (37 [^\circ]C). This maintenance of a stable internal environment, even in the face of a changing external environment, is known as homeostasis.

4. Growth Living organisms undergo regulated growth. Individual cells become larger in size, and multicellular organisms accumulate many cells through cell division. You yourself started out as a single cell and now have tens of trillions of cells in your body [^1]! Growth depends on anabolic pathways that build large, complex molecules such as proteins and DNA, the genetic material.

5. Reproduction Living organisms can reproduce themselves to create new organisms. Reproduction can be either asexual, involving a single parent organism, or sexual, requiring two parents. Single-celled organisms, like the dividing bacterium shown in the left panel of the image at right, can reproduce themselves simply by splitting in two!

6. Response Living organisms show “irritability,” meaning that they respond to stimuli or changes in their environment. For instance, people pull their hand away—fast!—from a flame; many plants turn toward the sun; and unicellular organisms may migrate toward a source of nutrients or away from a noxious chemical.

7. Evolution Populations of living organisms can undergo evolution, meaning that the genetic makeup of a population may change over time. In some cases, evolution involves natural selection, in which a heritable trait, such as darker fur color or narrower beak shape, lets organisms survive and reproduce better in a particular environment. Over generations, a heritable trait that provides a fitness advantage may become more and more common in a population, making the population better suited to its environment. This process is called adaptation.

We can see how earth as a planet doesn't qualify as a living organism based on these 7 parameters. Metaphorically calling earth "living" to describe the various interacting systems and ecologies is common but not in this context with climate change and insisting the earth will actually repair itself like a living organism.

I'm all for philosophically wondering about stuff, but we need to have an agreement on terms and what they mean. And in this case, these terms are already defined amd we know the planet isn't able to heal itself to address climate change. That's just a cope.