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Fastest rate of natural carbon dioxide rise over the last 50k years

today.oregonstate.edu

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Re: Fastest rate of natural carbon dioxide rise over the last 50k years

#91

Post by TimPC »

linuxftw wrote: post #74

> “We think they are caused by a dramatic collapse of the North American ice sheet. This sets into motion a chain reaction that involves changes to the tropical monsoons, the Southern hemisphere westerly winds and these large burps of CO2 coming out of the oceans.” Right. CO2 lags temperature increase, it does not drive temperature increase. Unless 'ice sheet collapse' is driven by something other than an increase in…

It actually does both. The increase in CO2 causes temperature increase which is well documented in the literature. But increase in temperature also causes the release of CO2 which further increases the temperature.

Re: Fastest rate of natural carbon dioxide rise over the last 50k years

#92

Post by silverquiet »

liveoneggs wrote: post #27
Rinzler89 wrote: post #5

Earlier quoted context omitted.

> - China and their global junk manufacturing industry And who orders, buys and pays for all the junk? The western consumers. Who offshored their own dirty manufacturing industry to China due to their lack of workers/human rights and environmental protection? The west. Which companies profited the most from this offshoring to China? The western ones. Same for the textile/clothes industry. So I think you're looking at…

What is the purpose or context of this thinking? To infantilise and absolve China?

What is the purpose of any division? A molecule of CO2 is fundamentally identical regardless of its country of origin. It's a worldwide problem, and ultimately our inability to cooperate as one world will be the undoing of us.

Re: Fastest rate of natural carbon dioxide rise over the last 50k years

#93

Post by Miraltar »

liveoneggs wrote: post #27
Rinzler89 wrote: post #5

Earlier quoted context omitted.

> - China and their global junk manufacturing industry And who orders, buys and pays for all the junk? The western consumers. Who offshored their own dirty manufacturing industry to China due to their lack of workers/human rights and environmental protection? The west. Which companies profited the most from this offshoring to China? The western ones. Same for the textile/clothes industry. So I think you're looking at…

What is the purpose or context of this thinking? To infantilise and absolve China?

You can blame China all you want and nothing will change but if western countries buy less of their junk they'll need to adapt somehow

Re: Fastest rate of natural carbon dioxide rise over the last 50k years

#94

Post by the_third_wave »

hsavit1 wrote: post #51
belter wrote: post #3

We are in the multilayered race between - The risk of the rise of AGI - The risk and madness of Nuclear conflict - The risk of runaway Climate change My money is on Mother Gaia. She will brutally and swiftly discipline her puppies.

You don’t understand the enormous immediate risk of climate change if you think that AGI is a comparable risk. Climate change is now and is killing people every day

[flagged]

Re: Fastest rate of natural carbon dioxide rise over the last 50k years

#96

Post by Trow839rn »

silverquiet wrote: post #79
Trow839rn wrote: post #57

> Fastest rate of natural carbon dioxide rise over the last 50k years Natural CO2 rise?

Yes, I'm not sure what to make of that wording either. Based on my quick read of the article, it should probably just be "rise". Presumably it is knowable from isotope analysis if carbon added to the atmosphere is recent or fossil. We certainly know that we are adding fossil carbon to the atmosphere at a prodigious rate, and if "natural" carbon content is rising as well, then that is quite bad news because it would l…

No, it is "natural" rise. If earth system itself contributes to carbon emmisions, we need to subtracted that from anthropogenic emmisions!

This is great news! Our efforts are actually paying off! Soon we will cut human emmisions to zero!

Also we should substract emmisions produced by other species like cows, dogs, cats.. And I have great business idea, where orangutan owns and operates coal plant, that is natural and should be substracted as well!!!

Not every CO2 molecule is produced by humans!!!!

Re: Fastest rate of natural carbon dioxide rise over the last 50k years

#97

Post by blueflow »

toss1 wrote: post #68

Great visualization from Randall Munroe: https://xkcd.com/1732/ Literally everyone should see this. Edit: Evidently many people still do not get the point The point is that yes, climate has changed in the past, and the individual values are not the problem. The PROBLEM is that it has never changed this FAST . By orders of magnitude. Velocity changes everything. Consider just taking a sip of your coffee 1000X as fast…

And before they start panicking, they should see this: https://commons.wikimedia.org/wiki/File:All_palaeotemps.svg

The XKCD comic starts at the coldest moment in history known to mankind.

Re: Fastest rate of natural carbon dioxide rise over the last 50k years

#98

Post by IMTDb »

toss1 wrote: post #68

Great visualization from Randall Munroe: https://xkcd.com/1732/ Literally everyone should see this. Edit: Evidently many people still do not get the point The point is that yes, climate has changed in the past, and the individual values are not the problem. The PROBLEM is that it has never changed this FAST . By orders of magnitude. Velocity changes everything. Consider just taking a sip of your coffee 1000X as fast…

The choice to start at 2000 BC is interesting, because as soon as you zoom out more, the story completely changes:

https://www.researchgate.net/publication/356606430/figure/fi...

https://www.climate.gov/sites/default/files/styles/full_widt...

Randall chose one of the lowest point every in the history of earth as the "baseline". We are still in one of the coldest period ever for earth. The recent rise of temperature is significant, but not unprecedented. Before we reach a point that one could qualify as a "hot earth", we would need to warm up by an additional 10 to 15 C°

Re: Fastest rate of natural carbon dioxide rise over the last 50k years

#100

Post by BirAdam »

c048 wrote: post #20
belter wrote: post #3

We are in the multilayered race between - The risk of the rise of AGI - The risk and madness of Nuclear conflict - The risk of runaway Climate change My money is on Mother Gaia. She will brutally and swiftly discipline her puppies.

'Mother' Gaia will wipe all complex life from this planet with 1 to 1.5 Billion years if her 'undisciplined' puppies don't find a way to leave this ball of dirt. She's also got quite a lead with killing off 99.99999% of all species that ever lived, when compared to us.

Sounds like a challenge for which our species is well suited.
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