Will not completely go extinct is not the same as fine. Even ignoring climate refugees and all that, let’s look at a simple thing: food supply.
The mathematics of global famine are quite simple. Add all the calories that earth produces in one day on average and divide it by 1500. That’s the amount of people that can exist.
Now, like 70% off all calories come from just 3 crops: rice, corn and wheat. As a good approximation, all of those lose about 10% harvest yield for each 1 degree C in temperature rise. It’s not really linear and is better at the beginning (so like 5% for the first degree), and much worse further on. But in general the approximation works.
Humanity now produces about 1.5x of the food supply we need, and even with super-optimized logistics we’re not going to get it lower than 1.2–1.3x population, since a lot of food gets wasted by cafes/restaurants and people themselves. Some just gets bad because it’s not consumed in time or takes too long to deliver or sell.
And with the current temperature rise estimations we’re looking at losing caloric supply for about 20% of the entire population in the next 20 or so years.
And that’s just one example. Have you seen rivers of dead fish in Australia and the states? For each species there is a point when the water gets too hot to hold enough oxygen or to cool down their bodies, and then bam — the whole species dies in a day. Right now, some algae, corals and plankton are like 1.5 degrees away from mass death.
That’s bad. 38 is at the upper limit of survivability in general. Might not be survivable for more than a few hours for elderly/sick/children.
To clarify for anyone reading, human bodies lose the ability cool themselves via evaporation/sweating at around 36 wet bulb degrees C, and body temperature starts to rise to match its surroundings. So it’s like having a constant high fever. 40 WB is survivable for like a couple of hours.
I use a lot of stuff that was already mentioned, but to mention a couple more:
Things is my favourite todo/project management app. It’s quite simple and wouldn’t work for large projects, but it fits my requirements perfectly, so I suggest to check it out. Has an iPhone app as well.
So if you were to choose the best system for multi-candidate voting that would work for most real-life elections or multiple-choice rankings, which one would it be?
We have this property in our universe where simple things with simple rules can create infinitely complex things and behaviours. A molecule of water can’t be wet, but water can. A single ant can’t really do anything by himself, but a colony with simple pheromone exchange mechanisms can assign jobs, regulate population, create huge anthills with vents, specialty rooms and highways.
Nothing within a cell is "alive", it’s just atoms and molecules, but the cell itself is. One cell cannot experience things, think, love, have hopes and dreams, or want to watch Netflix all day, but a human can.
The fact that lots of tiny useless things governed by really simple rules can create this complexity in this world is breathtakingly beautiful.
Idk, I drink like 3L of liquid a day, especially during the summer. Doesn’t seem that infeasible.