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Environment & Energy

xocetaceans

(4,101 posts)

5. Any ideas on how quickly 500 ppm can be "achieved"? What are the current long-term predictions for the curve's shape?

Reply to NNadir (Reply #4)

Mon Mar 24, 2025, 09:10 AM

Mar 24

Pessimistically, I expect that the growth in human contributions to the concentration of CO2 will continue roughly in proportion to population growth, but I cannot cite anything to support that and have not spent the time studying this to the extent that it deserves.

Also, would you happen to know if anyone has done any sort of reputable study on the expected environmental effects of bitcoin mining or AI/LLM modeling? I am not sure what scale to attribute to the energy consumption of those "industries".

Really, I am just asking for what you would consider a reputable source that might discuss those issues if you know of any, so I can read through it. If you have any thoughts that you would wish to share though, I would be interested.

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New Weekly CO2 Concentration Record Set at the Mauna Loa Observatory, 428.38 ppm [View all] NNadir Mar 23 OP

Thank you for this info wendyb-NC Mar 23 #1

Thank you for your attention and kind words. n/t. NNadir Mar 23 #2

The 1990s-plausible goal of keeping the CO2 concentration under 400 ppm seems like it was just yesterday. n/t xocetaceans Mar 23 #3

No one now living will see 400 ppm again. Indeed, no one now living will ever see 420 ppm again. NNadir Mar 23 #4

Any ideas on how quickly 500 ppm can be "achieved"? What are the current long-term predictions for the curve's shape? xocetaceans Mar 24 #5

An estimate... NNadir Mar 24 #6

Thank you. xocetaceans Mar 24 #7

Correction: The predicted year using the quadratic for reaching 500 ppm.... NNadir Mar 25 #8

Did you happen to mean 2042 ? (I am supposing a transposition.) Thanks for checking out your spreadsheet. n/t xocetaceans Mar 25 #10

Late night typo. 2044. NNadir Mar 25 #11

Errata: Week 11 does not set the all time record for highest recording for CO2 concentration. Week 10... NNadir Mar 25 #9

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