- cross-posted to:
- lemmybewholesome@lemmy.world
- cross-posted to:
- lemmybewholesome@lemmy.world
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My grandfather would tell stories of how the planet used to be covered in plants and you could breathe the air outside. Back when the sky was blue.
A time traveler’s survival guide. The vertical green bars are the only times in Earth’s history with enough oxygen to breathe (hypoxia) and low enough to avoid oxygen toxicity (hyperoxia):
That blue bar is extremely pessimistic. Humans can survive pretty well with 15% oxygen, and do so in several places in the Andes mountains, China and India. I wouldn’t recommend doing it without lengthy acclimatizing, especially not considering my last paragraph, but it’s completely survivable by itself.
Humans also don’t really have a problem with 25% oxygen, although that will definitely bring down the life expectancy.
On the other hand, note how those pointers talk about giant insects, megafauna and other scary things. Those are a much bigger problem than the air you’re breathing.
“No parenting class would have ever prepared me for having my kid ask me why we don’t need artificial oxygen storage.”
No, but a grade school science class would have…
Yeah this is mindboggling. It wouldn’t have ever crossed her mind to tell her kid that they don’t need oxygen canisters on this planet? I mean, what the dad said is good, as it opened the door to some more learning… but wow.
You completely missed the point.
This was about the elegance of the answer, not the answer itself.
Sounds to me like Dad needs a little credit here.
Get some perri-air
First off, weird to point out that they’re “age appropriate”
If your kid reads above the age level and understands it that’s generally a good thing
Number two I don’t get why this is such a weird concept on how to explain things to a child. Seems pretty normal and “age appropriate”
I’m very disappointed there was no praise for dad at the end of all that.
As far as I can tell, the whole thing was praising the dad.
Isn’t the ocean that produces most oxygen?
yes, fytoplankton, but those are plants too. THey’ll be extinct in +/-500 years because of the ocean acidification, which is a result of the sea absorbing CO2 from the atmosphere.
What can I do to prevent this?
Fight for a socialist future or join organisations/actions which do direct action against large pollutors, I’m thinking for example about Ende Gelände in Germany.
So, where do I find this dad, as opposed to, “Dunno, ask yer mom, and fetch me a
bud lightcoors.”?
