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environment

Polar bears could vanish from Canada's Hudson Bay if temperatures rise 2C

21 Comments
By Nick Perry

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21 Comments

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Makes visiting Churchill and points north a safer option, eh. No need to worry aboot being mauled by one of them.

-3 ( +2 / -5 )

Well, in the past there was a forest on antarctic and in the Arctic! Talk about global warming! And yet somehow the polar bears survived in the Arctic.

0 ( +4 / -4 )

Well, in the past there was a forest on antarctic and in the Arctic! Talk about global warming! And yet somehow the polar bears survived in the Arctic.

Maybe cos polar bears were not around then. There being millions of years between them. I mean to say, simple reasoning would surely make you realise that white fur is an adaptation to hunting in white environments, not forests. But, of course, you mean to say that polar bears are not really under any threat and likely that there is danger from climate change to anyone or anything.

5 ( +5 / -0 )

"No danger from climate change."

2 ( +2 / -0 )

That forces them to spend longer stretches ashore without their main food source.

How will they spend their time when temperatures rises 10C?

-8 ( +0 / -8 )

I don't have very much hope in humanity, but I'm certain that even climate change deniers would stop burning fossil fuels when the air actively makes them sick.

Climate change is already killing people, and we still burn fossil fuels.

3 ( +6 / -3 )

This will not happen. A 3°C increase roughly requires the doubling of CO2 in the atmosphere. So, to reach an increase of 10°C, the atmosphere would have to contain 8 times as much CO2 as today.

I think that it is possible to infer, relying on system theory, that the situation is much more dangerous and that your linear calculation is too complacent.

-4 ( +1 / -5 )

the Hasselmann model to calculate the constraints of the Equilibrium Climate Sensitivity

Klaus Hasselmann is best known for developing the Hasselmann model of climate variability, where a system with a long memory (the ocean) integrates stochastic forcing, thereby transforming a white-noise signal into a red-noise one, thus explaining the ubiquitous red-noise signals seen in the climate.

-4 ( +1 / -5 )

Did ChatGPT also mention that he received the Nobel Prize for his climate models you are so quick to dismiss?

I do not know: I did not speak with ChatGPT about this. The claim that I dismiss these models is not precise - I did not study them. However, I have the impression that there is a need for more models of the climate system, which study more aspects of this system and use more approaches and more methods.

-4 ( +1 / -5 )

Nature in action.

-7 ( +4 / -11 )

and it is not linear

It looks sublinear.

-6 ( +0 / -6 )

Mother Nature doing what she does best--the cycle of life on the planet--the world has experienced this before.

-3 ( +3 / -6 )

a few singular degrees are more than enough -- not harsh enough for you?

Try "logarithmic" for size.

I do not think the change of state of the climate system, in terms of the temperature and the humidity in the atmosphere, is logarithmic in the inputs, as measured in terms of the added amount of non-condensing gases. It is not even linear. Moreover, I think that the system is not stable in the BIBO sense (Bounded Input Bounded Output).

-2 ( +1 / -3 )

Makes visiting Churchill and points north a safer option, eh. No need to worry aboot being mauled by one of them.

Not exactly a relief in comparison with the huge disaster that is being evidenced by these drastic changes.

Nature in action.

Mother Nature doing what she does best

As even the article explains, this is not Nature in action but human activity derived. At this point the only ones that still want to pretend otherwise are those that are completely ignorant of the situation but still want to say something about it.

-1 ( +2 / -3 )

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