FreedomFighter
Member
This.We will deserve everything we get
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Ice shelf the ice of 20 Manhattans about to break of from Antarctica
- Thread starter Inuhanyou
- Start date
YourMaster
Member
No it's not. Mass extinctions happened just as quick in the past. I don't see how it is relevant if we are any more or less natural than for instance an asteroid.
The point remains, we suffer, nature remains. Nature will recover, and in a few million years there's perhaps more diversity than there is now. And if there are a few eons of hardship, it is only us humans that care.
We want to live in a nice hospitable planet with a climate that suits use, and pretty animals around. We don't want to wait for a million generations to see if new giant mammals evolve.
MisterFalcon
Member
Not nearly. B-15 was 10 times as big when it calved in 2000. And it drifted into the sea, then back to Antarctica. Much like iceberg B-9 whicj was also bigger and was thought to have killed 150,000 penguins by blocking their bay. Or so people thought until it turned out that rather then sit there and die so humans could feel bad the penguins simply moved somewhere else.
https://en.wikipedia.org/wiki/Iceberg_B-15
MistaBowaa
Member
Physics Question:
Since the ice is already displacing water, it's not adding anything new to the ocean. Because water expands when it freezes (see: frozen water bottles), wouldn't the sea level decrease when this thing melts?
If anything, the reason the sea level rises is from all the junk and other fluids we toss in the ocean. That and sea life reproducing too fast.
At least, that's my hot take after waking up 5 minutes ago.
Since the ice is already displacing water, it's not adding anything new to the ocean. Because water expands when it freezes (see: frozen water bottles), wouldn't the sea level decrease when this thing melts?
If anything, the reason the sea level rises is from all the junk and other fluids we toss in the ocean. That and sea life reproducing too fast.
At least, that's my hot take after waking up 5 minutes ago.
SolVanderlyn
Thanos acquires the fully powered Infinity Gauntlet in The Avengers: Infinity War, but loses when all the superheroes team up together to stop him.
No the sea rises when landlocked ice melts into it. The ice already floating in water melting won't decrease sea levels either, since ice floats, it doesn't displace that much water. It'll displace the same amount once it's melted.
MistaBowaa
Member
Ice floats in the sense that it doesn't sink, but most of it is still submerged. It's not 100% sitting on the surface.
People are stupider than you can imagine.
Theonik
Member
Nature will adjust, our societies will inevitably collapse, much wildlife will perish but in the grand scheme of the planet new life will spring pretty soon after that.
Well yes, but have you ever seen the water level in a glass decrease after the ice cubes have melted?
MistaBowaa
Member
I've never measured that, but using the water bottle example, the volume changes based on its state. I would imagine it's the same thing, albeit harder to tell if you're measuring a couple ice cubes in a glass vs the entire glass.
hanspampel
Banned
We will deserve everything we get
yes
i'm all for climate change.
mankind needs to be reduce to a sustainable size again
I think the fundamental point of the quote isn't to say that humanity isn't capable of damaging the planet, but that the planet will eventually recover from any damage done to it by humans when humans are long since extinct.
I think the point is the earth has adapted to several climate shifts and extinction level events before.
By accelerating this we are only hurting ourselves. Once we are gone life will change and continue without us.
maniac-kun
Member
Meanwhile at the northpole:
YourMaster
Member
Funny. If an iceberg is for 90% submerged, it is because the ice has 90% of the density of water. With 10% sticking out of the water, the volume of the iceberg below the waterline is exactly the volume that water of the same weight of the iceberg would have.
This is what the law of Archimedes is about.
So yes, having an ice cube melt inside a glass of water would keep the water level exactly the same. However, Antarctica has an ice sheet kilometers high on land, and when that gets into the water the sea-level will rise at some places.
Why not everywhere? Well, there's so much ice on Antarctica that it actually effects the center of gravity of the earth. Would it suddenly all melt, gravity itself would shift, with water levels actually decreasing at some parts of the world, and increasing a lot on others.
The second ice is supposed to be "size"
Derp... I need more sleep.
There's truth here, but there's a lot of scientific evidence saying that we could very well be the ones if things don't turn around soon. There's already going to be huge damage even if somehow we manage to pull things together.
Slight nit-pick: It's gonna drift north. It's breaking off of Antarctica.
Also, this massive iceberg alone won't raise the sea levels, it's already in the water, but from my understanding it breaking off will destabilize the ice shelf behind it, which will then gradually slide into the water.
Not really, and even if it did the relationship would be complicated.
Water undergoes a density inversion when it freezes so that it is actually occupying less volume when it's cold and then more again when it's frozen. But this is for hundredths of a percent. That's a pretty negligible change in volume. When it gets further north the water expands, meaning sea ice is likely to add to volume further north rather than reduce it down south (if we're talking about the antarctic). What makes this negligible is that salinity also changes density, where salty water is more dense than fresh water/ice which is what this shelf is made of. All in all they cancel out.
This sea ice melting will take a while even when it does cleave, but when it does, the biggest effect will be an albedo change which will speed up AGW because of the oceans absorbing more water.
metareferential
Member
We are going to another planet somewhere, sometime.
Once we drop this useless economy and start building what needs to be built, that is. xD
Really though, we're screwed.
Dagobert Duck
Member
Oh my :/
texhnolyze
Banned
Escape Goat
Member
It's been ice knowing you guys.
ShadowSwordmaster
Banned
We already have a thread about it breaking off. So, use that one.
http://m.neogaf.com/showthread.php?p=243240483
http://m.neogaf.com/showthread.php?p=243240483
Escape Goat
Member
You forgot to login to the Modbot account.
It's good to see that so far it doesn't look like the rate of ice loss will be greater, as was predicted could have possibly happened.
The situation will continue to have to be monitored, but as far as ways this could have broken off, this is one of the better ones.
Still slightly worrysome, however.
The situation will continue to have to be monitored, but as far as ways this could have broken off, this is one of the better ones.
Still slightly worrysome, however.