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> Yeah, this is probably best practice for people in regions that are projected to be left mostly uninhabitable

I'd go as far as arguing that _everyone_ should prepare for what's coming. All of us will be affected, be it directly or indirectly, through things like the (most likely) inevitable refugee crisis, or increased food prices and lower standards of living.

> but civilization itself has never, in history, collapsed

I meant individual civilizations and not civilization itself, although I read the original comment as something happening to "our" civilization and not all of them. Total collapse of civilization itself would require something cataclysmic happening on a global scale, and that the effects of said event are so severe that all of humanity fail to restore itself within the time span of several generations.

Some of the more alarmist reports about global warming are indeed pointing at that scenario, although it's more likely that progress will be slower, and that humanity as a whole will be able to adapt in the long run.

Regardless, I am convinced that even if we were talking about the actual end of civilization itself, it would not necessarily be evident to us until it was too late.

The fact that there are alarm bells ringing about the climate now is an indicator of climate changes being either:

a) survivable for humanity as a whole by doing what we can to prevent it and prepare for what happens if we fail

b) the end of the world and it's too late to do anything

This turned darker than I planned. :D

> All of us will be affected

Actually, I'm pretty sure places like Greenland, Canada, Russia etc. will be mostly positively affected. I'm mostly concerned about the changes to the ocean when it comes to affecting all humans. The unfortunate reality is that unchecked global warming will probably lower food prices and increase standards of living in many places that are already rich, while causing destruction in places that are already relatively poor.

> alarm bells ringing about the climate...

The third option you left out is that the alarm is overinflated. With an issue as controversial as climate change, you can be almost certain that both the alarmists and skeptics are both wrong, and the truth is probably somewhere in the middle.

Also, I really don't think the end of the world is a realistic result of climate change. If you really want something to worry about, there are always meteors, gamma rays and the potential for nuclear war, superbugs, or biological WOMD.

> The third option you left out is that the alarm is overinflated.

I agree. I intended that to be implied as a possibility for the first option. Bad things will most likely happen, but it's unlikely that it's THAT bad.

Global thermonuclear war is a likely end stage, as fascists are swept into power in reaction to mass migration from the tropics.

Sane governmental response is a fantastic assumption. The orange baboon, along with present counterparts in Russia, Brazil, India, China, Turkey, Indonesia, Hungary are just a hint at what is to come.

I don't think the people terrible enough to launch nukes all other the place are in the position to do that. If the last 70 years are any indication, people don't tend to nuke other people.

There are nukes in Pakistan, India, Israel, Russia, other former Soviet countries, China, and US, all under increasingly fascistic rule. The orange baboon has publicly entertained using them just for dramatic effect. What do you imagine will restrain them as tensions resulting from mass migration, collapsing harvests, and desertification continue to grow?

Hey, with a bit of luck we'll get a nuclear winter which will counter global warming. -.-

You are being excessive.

First, why do you assume they would migrate north and not further south?

In your model do you expect people to move in or out of Australia, South Africa, Chile, etc. ?

Maybe because most of the land is in the north? This is not rocket science.

How does that change anything? Humanity could fit into a small island with the population density of dt Tokyo. There is plenty of land up, down, left and right.

> it will only cost us 2-4% of GDP by end of century

The projections suggest that it's much cheaper to avert climate change than to deal with the consequences, and much less painful.

If we can afford to lose x% of GDP dealing with the problems, why can't we spend less than that to avoid the problem, and avoid a huge amount of human misery and ecological collapse in the process?

> why can't we spend less than that to avoid the problem

We can, and we are. That's why I do what I do.

You're absolutely right, it is much cheaper to avert climate change than deal with the consequences. It's also necessary to transition to sustainable energy eventually because we will run out of fossil fuels regardless of what happens with the climate.

The solutions to climate change are being worked on right now by many talented people around the world. I'm confident we will reach the IPCC SR15 1.5 degree Celsius goals.

We aren't, and we won't. Coal and oil usage are still increasing, and the US is increasing its subsidy for them. Russia, China, and India are still building new coal-fired power plants. Fascist representation in governments is increasing worldwide.

Action is falling far short of what would be needed to cap temperature rise, and there is no motion toward greater enforcement.

Any developments in fission could only have substantial effect decades after events will overtake them.

> Any developments in fission could only have substantial effect decades after events will overtake them.

We only need 2 decades to fix the energy part of emissions, and the IPCC has given us 3.

> and there is no motion toward greater enforcement.

Enforcement isn't needed to get to net zero emissions. It's profitable long term to swap to clean energy and electrified vehicles and appliances, they're more efficient. Also fossil fuel abundance will eventually drop to the point where prices rise.

Free markets will solve our emissions problem, I'm not sure why you are worried about enforcement or the type of governments when it comes to this.

Gdp is a imaginary number madeup by economists using mg outdated pre computer methods. Gdp will break down under climate change. Heat causes discomfort, toxins cause mental illness. Your great America capitalist machine cant even stop mentally corrupted children from shooting their schoolmates. Wake up.

Egyptians lasted for 5000 years before christ was born, their civilization had expired completely during the rise of rome.

our modern society requires (depends) on specialization. It is not good at adaptation.

Our brains principally stopped evolving 50000 years ago. We're still learning how to use them and enhance/repair our bodies.

Gdp is 100 years old. We're not using gdp for anything in a ClimateChange multiple species foodchain collapse. Capitalism is 150 years old.

We probably aren't even using money in 100 years. A quantum supremacy machine has broken bitcoin satoshi blocks. Elons neurAlink connected by starlink allows us to communicate telepathically. If his hypermind doesn't build it by that time then mine will. Cheers.

Dear friends,

Ahem.. Humans have only had rationale thought for the last 50000 years. We are classified as Greater apes.

Destabilized governments run by extremists and nuclear weapons. Trumps usa deny Climate change. Fuch koch.

It was a good run. Unchecked climate change toxins from unchecked reactors exploding, blabla caused by heAT triggering rising water tables.. Godzilla.

Its a Multi species collapse. Nothing humans have ever experienced. Nothing mammals have ever experienced. Stfu and join r/extinctionrebellion