How long do you think it will take before we kill ourselves off as a SPECIES???
And how do you think we'll do it???
And If you don't think that will happen, then why not?
What do you think we'll do to find a way stay alive??
I think so, hope so.
We do have a tendency to foul the nest, so that will be likely our first great challenge.
There are also potentially mass extinction possibilities out of our hands.
If we do survive long term (into the 100's of thousands of years timeframe), there will be
bottlenecks, climactic catastrophes natural & man-made, and consequent massive social evolution.
nationalism, in the longer term, is unsustainable.
we're living on borrowed energy, air & every other resource.
Well put. I agree.
But I also don't think we have 100's of thousands of years left before we become EXTINCT.
Because that process will most likely begin before the end of this CENTURY (due to the way the last 5 YEARS have also been the HOTTEST ever recorded on the planet before).
100,000 years is optimistic. if hominins do go extinct, assuming there are any primates left, it would probably take another 20-30 million years to cook up another sentient species.
shareWith the EARTH on its way to becoming a planet like VENUS ( with it's RUNAWAY GREENHOUSE GASES), it's HIGHLY UNLIKELY another SPECIES is going to be able to SURVIVE on a PLANET where the temperature is high enough (900 degrees FARENHEIT) to MELT LEAD.
sharenah. we might bake off the megafauna & of course ourselves, but the earth has intrinsic atmospheric stability.
we're not venus nor will we ever be, as long as we have plate tectonics (to sequester carbon), and a magnetic core to shield the atmosphere from the cosmic wind.
once we're gone, the planet will almost immediately go about righting itself to the basic status quo ante. there's only so much permanent damage we can do.
Yes there's there plates and the other MAGNETIC CORE (that also helps to create the PRETTY NORTHERN LIGHTS for us), BUT there's also still the FACT that the SUN is going to SWELL UP and GOBBLE us UP.
So the shifting plates and the MAGNETIC CORE also won't do anything to STOP that from happening.
Will Earth become like a present-day Venus in the future ...
https://www.quora.com/Will-Earth-become-like-a-present-day-Venus-in-the-future
As the size of sun keep on increaing it will collaspe the orbit of mercury, venus and earth. Dont worry, it will take billion years. So similar scenerio will take place on earth. [b]Sun’s increasing size will boil oceans. Water will be converted into steam. And due to this Earth will be Converted into Venus like planet.
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that's billions of years in the future :)
shareAs you can see below it's not BILLIONS of years but just ONE BILLION years before that happens. And other things could also happen to us at ANYTIME or even before that time:
https://en.wikipedia.org/wiki/Human_extinction
Extraterrestrial
A geological or cosmological disaster such as an impact event of a near-Earth object (NEOs),[59] which serve as an absolute threat to the survival of living species.[60]
A single extraterrestrial event (asteroid or comet impact)[61] can lead to widespread species extinctions. However, none of the large "dinosaur-killer" asteroids known to Spaceguard pose a near-term threat of collision with Earth.[62]
Supernovae, gamma-ray bursts, solar flares, and cosmic rays, if strong enough, could be lethal to humans on Earth.[63][64][65]
The Earth will naturally become uninhabitable due to the Sun's stellar evolution, within about a billion years.[66]
In around 1 billion years from now, the Sun's brightness may increase as a result of a shortage of hydrogen, and the heating of its outer layers may cause the Earth's oceans to evaporate, leaving only minor forms of life.[67]
Well before this time, the level of carbon dioxide in the atmosphere will be too low to support plant life, destroying the foundation of the food chains.[68] See Future of the Earth.
And we'd also NEVER even see a GRB (GAMMA RAY BURST) coming in time enough to do anything about it before it VAPORIZED us.
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ok, you are reemphasizing points i've already made as if they haven't already been made.
we're vulnerable.
you can have the last word if you like.
Well the TOPIC here is "HOW LONG" do you think we've got before "we KILL OURSELVES off as a SPECIES."
And you also said that it will take BILLIONS of years before that happens to us, but you also mentioned but didn't discuss in detail something that involves us doing something that leads to our OWN DEMISE.
Right???
of course i have no idea how long we last. anyone who does is fooling themselves. i've only outlined some of the challenges & hazards. .
shareAnd your wonderful input has also been much appreciated very much.
It's just the issue of us having ONE BILLION instead of BILLIONS of years left that one wanted to point out and call attention to.
So is there anything else that you'd like to ADD ON "in more DEPTH and DETAIL" to the other things that you've previously mentioned:
YOU again:
We do have a tendency to foul the nest, so that will be likely our first great challenge.
There are also potentially mass extinction possibilities out of our hands.
If we do survive long term (into the 100's of thousands of years timeframe), there will be
bottlenecks, climactic catastrophes natural & man-made, and consequent massive social evolution.
nationalism, in the longer term, is unsustainable.
we're living on borrowed energy, air & every other resource.
YELLOWSTONE, for example, (which tends to EXPLODE every 500,000 YEARS or so), is also OVERDUE for another EXPLOSION.
And that would mean the ASH would also CLOG up every single COMBUSTION ENGINE, thus also leaving us here in the US with no way to DISTRIBUTE GROCERIES to GROCERY STORES anymore.
share
only that i now see that you are a rather strange fellow, who seems to have some sort of control issue. enjoy your thread !
shareHow does the attempt to get you to EXPAND upon the previous issues that you mentioned (which were WONDERFUL) EQUATE to having a CONTROL ISSUE???
You said that:
There are also potentially mass extinction possibilities out of our hands.
So one simply MENTIONED YELLOWSTONE (and the possibility that this could also be one of those POTENTIALLY MASS EXTINCTION POSSIBILITIES) in hopes that you'd be interested in a more IN DEPTH discussion about it.
But IF you don't want to DISCUSS the matter that's fine, because one can also still talk about it without you or discuss it with someone else.
So thanks again for your INPUT and for bringing up the matter in the first place.
For anyone else who is interested here's some additional info about YELLOWSTONE:
What If Yellowstone's Supervolcano Erupted ...
https://www.realclearscience.com/blog/2019/10/10/...
Oct 10, 2019 · The Yellowstone supervolcano has unleashed three cataclysmic eruptions in the past 2.1 million years; all well before humans populated North America. The most recent was 640,000 years ago, which formed Yellowstone as we know it and spewed 240 cubic miles of ash, rock and pyroclastic materials over roughly half of what is now the United States.
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Roughly 5 billion years from now, the Sun will exhaust the hydrogen fuel in its core and start burning helium, forcing its transition into a red giant star. During this shift, its atmosphere will expand out to somewhere around 1 astronomical unit — the current average Earth-Sun distance. This means the Sun will gradually engulf Mercury, Venus, and likely Earth. Any surviving earthlings will have long since fled the brightening Sun — or, as some scientists recently suggested, moved the planet itself to a more sanguine orbit.
https://astronomy.com/magazine/ask-astro/2020/09/what-will-happen-to-the-planets-when-the-sun-becomes-a-red-giant
Thanks for the link.
Is this where you think the SURVIVING EARTHLINGS might have FLED to:
The inner realm’s doomsday will bring a brief new dawn to the outer solar system. Saturn’s moon Titan, the only known satellite with a significant atmosphere, should keep its dense shroud. It could enjoy several hundred million years of potentially habitable conditions with liquid oceans of water-ammonia, simulations show. The environment may even resemble early Earth. Eventually, Pluto and its cousins in the Kuiper Belt — plus Neptune’s moon Triton — could be the most valuable real estate in the solar system. When the Sun turns into a red giant, the temperatures there will be equivalent to those in tropical locales on Earth today, such as Miami Beach, according to Southwest Research Institute astronomer S. Alan Stern.
Moving EARTH to a more SANGUINE ORBIT also sounds interesting, but we'd also need to MOVE our MOON as well (due to the way we need it to keep us located in a STABLE AXIS --where we wouldn't WOBBLE around all over the place -- which would also produce DIRE CONSEQUENCES for us being able to SURVIVE that way).
Also FOUND THIS:
https://www.syfy.com/syfywire/nasa-might-send-a-mission-to-neptunes-moon-triton#:~:text=Triton%20might%20be%20habitable%20if%20that%20liquid%20is,right%20here%20on%20Earth%20that%20defy%20those%20standards.
NASA will select up to two missions to move forward with by next summer. If Trident is one of them, it would have to launch in October 2025 to take advantage of Jupiter aligning with Earth in such a way that the gas giant’s immensely powerful gravity would slingshot it to the far reaches of the solar system. That opportunity only comes around once every 13 years. Trident also better arrive at Triton before 2040 if it is going to find out what is behind the icy plumes, or else the sun will move too far north for the next hundred years. Most of us will be dust by then unless there is some unreal breakthrough in cryogenics.
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