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Humans have caused 1.5 °C of long-term global warming according to new estimates

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399 points gmays | 1 comments | 17 Nov 24 18:49 UTC | HN request time: 0.001s | source
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urduntupu ◴[17 Nov 24 19:54 UTC] No.42166612[source]▶
We are on the natural rise after a natural ice period. Just check long term temperature curves and stop looking short term, making it look like there has ever been the same average temperature on earth.
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thrance ◴[17 Nov 24 20:02 UTC] No.42166671[source]▶
Simply wrong. Intuitive visualization: https://xkcd.com/1732/.
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blumomo ◴[17 Nov 24 20:27 UTC] No.42166925[source]▶
It’s you who’s simply wrong.

You have to look before the ice period, that’s what OP refers to as long term.

https://scitechdaily.com/66-million-years-of-earths-climate-...

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mariusor ◴[17 Nov 24 20:59 UTC] No.42167186{3}[source]▶
And we all know how well adapted humans were for that period, right.
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blumomo ◴[17 Nov 24 21:36 UTC] No.42167528{4}[source]▶
That is to say what?
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mariusor ◴[18 Nov 24 07:42 UTC] No.42170540{5}[source]▶
That mammals were not in existence for the larger part of that very warm period. So the fact that life existed through it has little bearing on human civilization thriving through a similar one, as parent seemed to imply.
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urduntupu ◴[18 Nov 24 10:07 UTC] No.42171138{6}[source]▶
Let's, I am not afraid of the earth getting much warmer, I see it as mostly fear mongering. If it's really getting _that_ hot that we mammals can't survive, then let that be it. There's the notorious idea of some humans that we can control everything. Let's continue keeping the earth a clean, healthy space, let's stop producing so much waste, let's clean the water, I am all in. But to believe that we are heating up the earth, I'm glad that not all agree to that nonsense.
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1. defrost ◴[18 Nov 24 10:16 UTC] No.42171179{7}[source]▶
> But to believe that we are heating up the earth, I'm glad that not all agree to that nonsense.

We are not heating up the earth.

The sun is heating up the earth.

That's occurring as we are adding 11 billion tonnes per year of additional insulation to the atmosphere. That's like throwing more blankets on the bed, trapping more heat.

This is well documented. The gas properties are understood and can be demonstrated in science labs to children. The gas sources are well understood and derive from documented fossil fuel extraction and confirmed by both isotope records and now by orbiting satellites.

> I'm glad that not all agree to that nonsense.

Physics isn't for everone.

But heat equations work regardless.