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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 27m

Sandra I think you meant.. @drjamesehansen.bsky.social.
The question is: what ppm do we need to get to for temps to start coming down?

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 32m

They say 350 is a safe limit, not clear if that means temps coming down, or just stabilising.. be nice to know for sure.

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 33m

Yup. And I feel like, because of all the disinfo and craziness, scientists have been hesitant to spell out the cold hard facts. But that has led to more disinfo.
You'd think this question would be an easy one to find an answer to: what ppm do we need to get to for temps to come down?
Apparently not

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 10h

And it needs to be more clearly spelled out, instead of the vague "net zero" which everyone seems to have a different interpretation of.

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 10h

I know I'm nitpicking this, but I talk to judges, lawyers, MPs, and policymakers, and no one has any grasp of this. And I can't explain it to them because there doesn't seem to be a clear answer.
But as Kevin and Sandra pointed out - 350 may be it. If so that needs to be our civilisational target.

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 10h

B) it's a greenhouse effect, so the atmosphere traps the sun's heat which adds up over time.
If temps were rising at 375ppm before I don't see why they would go down at 425 now or whenever we hit net zero. The only way that could work is if the full warming at each ppm level is instantaneous.

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 10h

Thanks Larry. My understanding is that even if concentrations stabilise or begin to fall, the planet’s temperature would continue to rise for some time.
You'll see the article I'm referring to on the post below.
This makes sense to me because A) temps were rising at much lower ppm, ie 375, and..

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 10h

"In that case, concentrations would stabilise or begin to fall, but the planet’s temperature would continue to rise for some time."

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 10h

"If concentrations were to stabilise, temperatures would continue to rise for several decades before global warming stopped at values corresponding to the balanced climate sensitivity. .."

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 10h

Right, that's what 350 is about, but is that still valid? And I feel like this is not understood by the public or most policymakers.

I also found this helpful.

How are CO₂ concentrations related to warming?

Historical data as well as future climate models show that global warming is (approximately) directly proportional to the increase of CO2 concentrations in the atmosphere. More specifically: every tim...

factsonclimate.org

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 10h

Yes. That makes sense. Kevin said the same, below. I'll add comments there since I can't seem to tag him

This is helpful for me too:
factsonclimate.org/infographics...

How are CO₂ concentrations related to warming?

Historical data as well as future climate models show that global warming is (approximately) directly proportional to the increase of CO2 concentrations in the atmosphere. More specifically: every tim...

factsonclimate.org

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 12h

I think the value in it is that there's a lot of disinfo and misunderstanding, and this is something that should have a nice clear answer, a realistic goal that we can all rally around, but nobody seems to know what it is.

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 12h

Christian Nationalism= no Christianity, all power and racism.

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 17h

so, smoked fish is good for you.

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 17h

Is there an APP where you can film and stream it out to an outside source (off your phone) while doing it?

This could help give activists some security, or maybe they're doing it already..

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 18h

the graph they understand best has time on one axis and them staying in power on the other..

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 20h

7.5D-Chess = kiss up, hope for the best

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 20h

tap out, quick!

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 22h

isn't it tho

Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 22h

So this brings up for me a question I have never found an answer to (for the climate scientists out there):
What is the PPM level we need to get to for temperatures to start coming down?

Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 22h

Yeah, exactly. 1.5 is not okay, it's just less of an emergency than 2.

But - the PPM level that got us 1.5 will get us 2, and beyond. It needs to come down. It's currently going up.

MEER @meercool.bsky.social · 23h

The idea that 1.5°C is safe is a dangerous illusion. We’ve already crossed multiple tipping points — the Great Barrier Reef, West Antarctica, Greenland. These shifts aren’t future risks. They’re happening now. — David Spratt

#ClimateCrisis #Globalwarming #Heat #MEERPodcast

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 22h

They called them "mere busybody"s in order to keep them out, and as an expression of their disdain for people caring about the Earth and one another.

This goes on here in Canada too, standing is a major hurdle, especially in environmental litigation.

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 22h

"Standing" is the right of a plaintiff to bring their case before court.

I found it interesting while studying US law how many standing cases are environmental - WHY?

Because the courts didn't want them. So they narrowed the test for standing as a way to keep from addressing the real issues.

Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 1d

suddenly a "mere busybody" is just fine. Someone tell the people challenging oil & gas projects!

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 22h

Yeah, exactly. 1.5 is not okay, it's just less of an emergency than 2.

But - the PPM level that got us 1.5 will get us 2, and beyond. It needs to come down. It's currently going up.

MEER @meercool.bsky.social · 23h

The idea that 1.5°C is safe is a dangerous illusion. We’ve already crossed multiple tipping points — the Great Barrier Reef, West Antarctica, Greenland. These shifts aren’t future risks. They’re happening now. — David Spratt

#ClimateCrisis #Globalwarming #Heat #MEERPodcast

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 23h

Carney succumbs a little bit with a smile at Trump's fishing boat joke, and then realizes he shouldn't be smiling while trump confesses to murder.

Aaron Rupar @atrupar.com · 23h

Trump: "We call them the water drugs. The drugs that come in through water. They're not coming. There are no boats anymore. Frankly, there are no fishing boats. There are no boats out there period, if you want to know the truth. Does anybody go fishing anymore?"

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Patrick Canning 🇨🇦 @patrickcanning.bsky.social · 1d

great thread on @paulmac.bsky.social's work tracking climate disasters. Worth a follow!

Paul Macdonald @paulmac.bsky.social · Nov 15

That the global population is not terrified for the wellbeing of their own offspring, let alone the wellbeing of others, to the point of rising up en masse to demand a global moratorium on fossil fuel expansion, would be utterly inconceivable,…

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