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IPCC climate crisis report delivers ‘final warning on 1.5C’

theguardian.com

21–30 of 456 posts

Re: IPCC climate crisis report delivers ‘final warning on 1.5C’

#22
post #20
post #18

Earlier quoted context omitted.

Overstating impact is detrimental to the cause. > decimated 1.5C will be bad, but it won’t directly kill 800+ million people in a short timeframe. People simply don’t respond to harm spread across 100 years the way they react to harm concentrated into a few large events.

I would love to make a bet with you, and I'd be willing to, but I really don't think I'll get to collect.

Would you actually be willing to bet that world population drops by 800+ million people within 10 years of 1.5C?

Re: IPCC climate crisis report delivers ‘final warning on 1.5C’

#23
post #18
post #8

For anyone interested in what 1.5C represents, I can't recommend enough the Climate Fresk [1] exercise. It's not just the droughts and floods, the heatwaves, the changes in birds, insects, crop yields, … Include permafrost melting and releasing greenhouse gasses, civil unrest in populated areas that won't be livable anymore, unstable food production, and quite a few other causes and consequences. It's a feedback loop…

Overstating impact is detrimental to the cause. > decimated 1.5C will be bad, but it won’t directly kill 800+ million people in a short timeframe. People simply don’t respond to harm spread across 100 years the way they react to harm concentrated into a few large events.

And underestimating what's actually going to happen, and how difficult it's going to be to reverse, or even put brakes on it is intellectually criminal, but the pro-AGW group hasn't ever cared about that. Why would they, the track record of 'Let industry self-regulate' has worked out great for them in the past.

We're going to blow right past 1.5C, 2C, 2.5C...

Re: IPCC climate crisis report delivers ‘final warning on 1.5C’

#24
post #8

For anyone interested in what 1.5C represents, I can't recommend enough the Climate Fresk [1] exercise. It's not just the droughts and floods, the heatwaves, the changes in birds, insects, crop yields, … Include permafrost melting and releasing greenhouse gasses, civil unrest in populated areas that won't be livable anymore, unstable food production, and quite a few other causes and consequences. It's a feedback loop…

What I always find so hard to believe is that, knowing how well we can predict weather and other complicated systems, climate change science somehow is able to make 1/10 centigrade precision predictions on time horizons of decades and centuries.

Re: IPCC climate crisis report delivers ‘final warning on 1.5C’

#25
Let’s say if there is a magical wand that can will any policy the user wants to happen — so the magic can’t remove carbon, but it allows the bearer to pursue any mean within humanity technological abilities — what are the actual actions that could be taken to fight climate change? My impression is that even the big polluter like China (as an example) is already on full speed to build more nuclear plant or solar power, and they just can’t do it faster. Can someone realistically elaborate a high level plan on what could be done, or a pointer to such sources?

Re: IPCC climate crisis report delivers ‘final warning on 1.5C’

#26

To start, yes, I agree with all the rest of the comments. Of course if you look at the action needed to start within the 1.5 degree carbon budget, it's simply impossible. It's kind of like saying how much better humanity would be if there were no wars - a nice thought, but also not going to happen. I'm curious, though, and I admit I haven't read the report, but what is it about 1.5 degrees that the scientific communi…

The point wasn't not only hitting that limit, but not hitting it before some date (end of century originally). The planet will continue warming up as long as we have an excess of greenhouse gases, even if we reach some kind of cooked up "net zero" of emissions.

If we warm faster, feedback loops will have more effect earlier, tipping points may be reached in shorter time, biodiversity will drop a lot, and our ability to react and do something about it will be compromised because we will have more urgent things to do like i.e. figuring out new food sources in scale after agriculture becomes unreliable enough.

It is not if we will hit a mark, but how fast we will leave it behind. There is no possible adaptation to fast enough change, for us and the world we depend on.

Re: IPCC climate crisis report delivers ‘final warning on 1.5C’

#27
post #24
post #8

For anyone interested in what 1.5C represents, I can't recommend enough the Climate Fresk [1] exercise. It's not just the droughts and floods, the heatwaves, the changes in birds, insects, crop yields, … Include permafrost melting and releasing greenhouse gasses, civil unrest in populated areas that won't be livable anymore, unstable food production, and quite a few other causes and consequences. It's a feedback loop…

What I always find so hard to believe is that, knowing how well we can predict weather and other complicated systems, climate change science somehow is able to make 1/10 centigrade precision predictions on time horizons of decades and centuries.

Can we predict weather that well? The 10 day forecasts my phone gives are mostly ok, not great, and often change at the last minute.

Re: IPCC climate crisis report delivers ‘final warning on 1.5C’

#28
post #8

For anyone interested in what 1.5C represents, I can't recommend enough the Climate Fresk [1] exercise. It's not just the droughts and floods, the heatwaves, the changes in birds, insects, crop yields, … Include permafrost melting and releasing greenhouse gasses, civil unrest in populated areas that won't be livable anymore, unstable food production, and quite a few other causes and consequences. It's a feedback loop…

[dead]

Re: IPCC climate crisis report delivers ‘final warning on 1.5C’

#29
post #25

Let’s say if there is a magical wand that can will any policy the user wants to happen — so the magic can’t remove carbon, but it allows the bearer to pursue any mean within humanity technological abilities — what are the actual actions that could be taken to fight climate change? My impression is that even the big polluter like China (as an example) is already on full speed to build more nuclear plant or solar power…

There is no way except property seizure and capital reallocation at a large scale. This wont happen, so we're effectively doomed to suffer the slow violence of the inaction of our owners who themselves will never live to feel the harm they're aiding and abetting.

Re: IPCC climate crisis report delivers ‘final warning on 1.5C’

#30
post #29
post #25

Let’s say if there is a magical wand that can will any policy the user wants to happen — so the magic can’t remove carbon, but it allows the bearer to pursue any mean within humanity technological abilities — what are the actual actions that could be taken to fight climate change? My impression is that even the big polluter like China (as an example) is already on full speed to build more nuclear plant or solar power…

There is no way except property seizure and capital reallocation at a large scale. This wont happen, so we're effectively doomed to suffer the slow violence of the inaction of our owners who themselves will never live to feel the harm they're aiding and abetting.

Can you go into a bit more details? What are the next step after property seizure, and where is the capital deployed?
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