That's not true. I provided two citations in spite of the fact that my knowledge is primarily from textbooks. — Tate
That's just not true. I've explained that several times now — Tate
There are aspects of the question that we don't even know how to model right now.
No, it's not simple. — Tate
We are in an ice age guys. Get yourself up to speed. — Tate
We both agree that the planet would normally be heading towards reglatiation
— boethius
Thank you. — Tate
For decades now, scientists have known, just from looking at the geological record, that the reglaciation should start sometime in the next few centuries. That means glaciers come back down and cover Chicago. It means the UK is under a sheet of ice. This was disturbing news when it was first discovered, and we now know quite a bit more about how it works, what the trigger is, and so forth.
We don't presently know if increased CO2 will cause us to miss the trigger, or if reglaciation will begin anyway. There are aspects of the question that we don't even know how to model right now.
No, it's not simple. — Tate
It would probably be prudent to put the brakes on CO2 emissions, like completely. — Tate
It's supposed to follow from the portion that failed verification. — Tate
More recent work suggests that orbital variations should gradually increase 65° N summer insolation over the next 25,000 years.[failed verification][failed verification] — Milankovitch cycles - Wikipedia
In glaciology, ice age implies the presence of extensive ice sheets in both northern and southern hemispheres.[3] By this definition, Earth is currently in an interglacial period—the Holocene. The amount of anthropogenic greenhouse gases emitted into Earth's oceans and atmosphere is predicted to prevent the next glacial period for the next 500,000 years, which otherwise would begin in around 50,000 years, and likely more glacial cycles after. — Ice age
The Wikipedia article is wrong. The same information shows up in the article on the Milankovitch cycle and it's superscripted with "verification failed". — Tate
More recent work suggests that orbital variations should gradually increase 65° N summer insolation over the next 25,000 years.[failed verification][failed verification] — Milankovitch cycles - Wikipedia
Earth's orbit will become less eccentric for about the next 100,000 years, so changes in this insolation will be dominated by changes in obliquity, and should not decline enough to permit a new glacial period in the next 50,000 years.[38][39] — Milankovitch cycles - Wikipedia
This is a study from 2013 about summer insolation reglaciation triggering. It upholds the standard view that we're fairly close to a trigger point now since we know summer insolation is at a minimum.
If you want a simpler narrative, I would advise a climatology textbook. There are some good ones out there — Tate
Wow. This is wrong. Wikipedia lets us down — Tate
As I said, we've known about this since the 1980s. It just doesn't come up much because it's centuries away. — Tate
I would say because of the unknown, something unforeseen. Suppose some super disease appears because of climate change,and we don't survive it?
If down the road we want to stop reglaciation, let tomorrow's scientists figure out how to do that safely.
Thanks for being so friendly, and not at all unnecessarily aggressive. — Tate
The amount of anthropogenic greenhouse gases emitted into Earth's oceans and atmosphere is predicted to prevent the next glacial period for the next 500,000 years, which otherwise would begin in around 50,000 years, and likely more glacial cycles after.[4][5][6] — Ice age-Wikipedia
For decades now, scientists have known, just from looking at the geological record, that the reglaciation should start sometime in the next few centuries. — Tate
I don't even know what that means. — Tate
It would probably be prudent to put the brakes on CO2 emissions, like completely. — Tate
It's possible. If we burn all the coal we can access it will become more likely. That would take around 200 years. — Tate
We're in an interglacial period of a large scale ice age. Specifically, we're at the end of an interglacial awaiting reglaciation. — Tate
Why? A rise in CO2 causes global warming which in turn causes greenification that counters the rise in CO2. That's a negative feedback loop alright! — Agent Smith
For decades now, scientists have known, just from looking at the geological record, that the reglaciation should start sometime in the next few centuries. — Tate
In glaciology, ice age implies the presence of extensive ice sheets in both northern and southern hemispheres.[3] By this definition, Earth is currently in an interglacial period—the Holocene. The amount of anthropogenic greenhouse gases emitted into Earth's oceans and atmosphere is predicted to prevent the next glacial period for the next 500,000 years, which otherwise would begin in around 50,000 years, and likely more glacial cycles after. — Ice age
↪boethius
With global warming
1. The greenification of Antarctica will occur.
2. The northward march of the timber line has been predicted.
Negative feedback loops, oui? — Agent Smith
CO2 levels have increased, not denying that. However, the spike in CO2 levels has been slower and less than expected for the rate and quantity of CO2 emissions. — Agent Smith
A poster had suggested that climate change is simple and easily understood by referencing the laws of thermodynamics. — Tate
However, what's the explanation for the long delay in changes to atmospheric CO2 levels, not to mention the deviation from normal are miniscule. One explanation is there are some negative feedback loops that regulate the concentration of gases in the atmosphere and that's precisely what autoregulation is, oui? — Agent Smith
It's not clear whether increased CO2 will take us out of the present ice age or not. — Tate
↪boethius In my humble opinion, the biosphere is able to self-correct any perturbations from the equilibrium point. There's this concept in physiology termed homeostasis and my hunch is a similar mechanism exists for the living world on the global scale as well. — Agent Smith
You say:
"""
"The CO2 we've added to the atmosphere will be absorbed into the oceans eventually."
— Tate
And then contradict that statement with:
"As the partial pressure of CO2 in the atmosphere increases, the amount of dissolved CO2 in the oceans will increase. It's Henry's Law."
— Tate
"""
— boethius
That's not a contradiction. — Tate
That's the standard scientific perspective at this time. — Tate
Global warming is real. Nobody said otherwise. — Tate
↪boethius In my humble opinion, the biosphere is able to self-correct any perturbations from the equilibrium point. There's this concept in physiology termed homeostasis and my hunch is a similar mechanism exists for the living world on the global scale as well. — Agent Smith
↪boethius In my humble opinion, the biosphere is able to self-correct any perturbations from the equilibrium point. — Agent Smith
We are in an ice age guys. Get yourself up to speed. — Tate
For people who don't want to spend effort doing basic web searches about this topic before debating it.
Here's a presentation by a credible scientist on the issue of collapse and climate change:
— boethius
I drive therefore I am.
Yes, one of the more successful campaigns at getting us to buy things we don't need. I imagine a smoke-filled board room in Manhattan somewhen in the late 1920s -
"People have already bought all the labour-saving stuff that makes their lives easier, it lasts a lifetime, we're going to go out of business. Any ideas?". Long silence.
"We could always sell them stuff they don't need...or make the stuff they do need break...".
"Excellent. We'll do both",
"But people would have to either be really stupid or really desperate to buy stuff they don't even need which breaks after a year",
"Excellent. We'll do both". — Isaac
Yes, it was, in the end, but I apologise for the misdirection. — Isaac
I think this is one of the oddities in considering modern war. All war is aimed at peace. All wars aim to have peace in which the borders (or political influence) have shifted. The aim is (was) never permanent war. So Russia should always be viewed as trying to gain a better bargaining position in the same power negotiations which preceded the war. As such, it would be insane not to be regularly 'testing the water' to see if they feel they've gained that position yet. — Isaac
Of equal, if not greater, interest to me are the methods they use to wield public opinion as s tool to this end. Hence the interest in the kinds of pro-US comment collected here. — Isaac
So we have to ask, I think, why the US are so uninterested in negotiations. That is the interesting question, and one best answered by looking at what they have to gain from a long drawn out war. — Isaac
This position ought be unaffected by whether we're winning or not, since at any time the opposing side might feel they have their best case (either because they've gained the advantage they wanted, or because they fear their current advantage may deteriorate). — Isaac
I don't know what kind of timescale you had in mind, but I think this has been true for some time. I was involved with the road protest movement in England in the 90s and it was (on reflection) exactly as you describe. — Isaac
No one really talked about the solutions to excessive car use, which would have involved a discussion about the break up of communities, increasing social isolation, the erosion of self-esteem, urban growth policy, taxation (public services provision)...etc. — Isaac
I meant that I didn't expect any serious response for him, not you! — Isaac
Normally, it implies you respond to the post, not to something else. — Olivier5
my main point was to counter this absurd notion that we'd be surprised people might be willing to compromise to achieve peace. — Isaac
But I don't really expect a serious debate about that from you, — Isaac
Be serious now. He was responding to my post where I clearly wondered about why the Baltic States should exit NATO. — Olivier5
That's not a contradiction. — Tate
I understood this to mean the removal of NATO membership for those NATO members already bordering Russia, i e. the Baltic States. — Olivier5
So he was clearly talking about the Baltic States walking out of NATO to appease Moscow. — Olivier5
If Eastern European countries feel threatened by Russia and therefore join NATO as deterrent against direct aggression (it doesn't matter if they are justified), NATO expansion is still the culprit. — neomac
Why is that always NATO expansion is the culprit that can not be excused/justified based on perception/reality analysis of moral or geopolitical reasons? — neomac
↪boethius What? — Tate
The CO2 we've added to the atmosphere will be absorbed into the oceans eventually. — Tate
As the partial pressure of CO2 in the atmosphere increases, the amount of dissolved CO2 in the oceans will increase. It's Henry's Law. — Tate
The greatest challenge to life on earth so far was low CO2, btw. High CO2 hasn't been been as much of a threat. — Tate
Roughly 251 million years ago, an estimated 70 percent of land plants and animals died, along with 84 percent of ocean organisms—an event known as the end Permian extinction. The cause is unknown but it is known that this period was also an extremely warm one. A new analysis of the temperature and fossil records over the past 520 million years reveals that the end of the Permian is not alone in this association: global warming is consistently associated with planetwide die-offs. — Scientific America
I'm afraid it is the issue we are discussing. Read the thread. — Olivier5
The argument was already provided: if the baltic states joined NATO, it is most probably because they felt safer inside it than outside it. — Olivier5
I realise this will come as a surprise to someone who think civilian casualties are just like extras in a film, but some people actually care about peace and are willing to take pragmatic steps to maintain it.
Such as not being part of a military alliance your massive, very militaristic neighbour considers a threat. — Isaac
As the partial pressure of CO2 in the atmosphere increases, the amount of dissolved CO2 in the oceans will increase. It's Henry's Law. — Tate
The CO2 we've added to the atmosphere will be absorbed into the oceans eventually. — Tate
↪Isaac The argument was already provided: if the baltic states joined NATO, it is most probably because they felt safer inside it than outside it. — Olivier5
The CO2 we've added to the atmosphere will be absorbed into the oceans eventually. — Tate
The greatest challenge to life on earth so far was low CO2, btw. — Tate
High CO2 hasn't been been as much of a threat. — Tate
↪boethius I'm sure Google can help you out in searching for instances of life's self-correcting feature. — Agent Smith
Nevertheless, you're right on the money that this ability of the biosphere to right itself after being knocked over (roly-poly toy like) has limits - beyond a certain point, the point of no return, the system collapses into a death spiral. — Agent Smith
↪boethius In my humble opinion, the biosphere is able to self-correct any perturbations from the equilibrium point. — Agent Smith