I just thought it was an interesting video that challenges what I previously understood about one specific thing 😅 I’m not advocating against the environment, neither is the video, that’d be terrible for many reasons. It’s just that the video is from PBS and seems pretty evidence based in why photosynthesis is quite terrible at converting CO2 to oxygen due to the shortcomings of the enzyme Rubisco and how we could improve that. Nothing more than that. Give it a watch, it’s not some anti-environment conspiracy video
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I love nature, but interestingly apparently photosynthesis doesn’t actually contribute all that much oxygen and Earth’s levels would stay stable for millions of years if all organic matter disappeared. We’d have many, many other problems, but not that one specifically:
I’ve seen Electron based apps do this sometimes. GitHub Desktop, for instance
Until an app decides to install in the hidden AppData folder with the confusing sub-folder names, or even the root of the user folder, or god forbid in a folder in the root of the C drive
guy@lemmy.worldto United Kingdom@feddit.uk•Librarians in UK increasingly asked to remove books, as influence of US pressure groups spreadsEnglish45·1 年前Just as they say they do not want Sharia law in the UK, we should not support the spread of other extremist religious laws
guy@lemmy.worldto No Stupid Questions@lemmy.world•Why doesn't phones numbers have a "DNS" server so we can just type in words like we do with the internet?2·1 年前In the first place? We kinda did to begin with, you would phone the operator and say the name of who you wanted to phone.
Introducing phone numbers simplified this, given the operator would have to know or lookup their name, and allowed for the future introduction of automated systems. Such systems were analogue and DNS was far more advanced than them. I guess the telephone becomes so widely used and integrated under that system that it still uses a similar interface today, albeit with a cluster of different modernised interconnected backends
guy@lemmy.worldto World News@lemmy.world•UK could avoid US tariffs that the ‘atrocity’ EU is facing because Starmer has been ‘nice’, Trump suggestsEnglish6·1 年前The UK and US have pretty balanced trading, both reprting surpluses. Isn’t that the real reason? Tariffs would be really stupid here
guy@lemmy.worldto News@lemmy.world•Justices take up case on right to sue over mistaken SWAT raid.2·1 年前Do Americans really have a right to bear arms? It’s technically legal, but if police can murder you and get away with it when they catch you with a gun, that sounds like the consequences are a possible defacto death sentence.
They only sometimes murder you for it. But there’s plenty laws where I’m from that are only sometimes enforced when the police catch you, and not by death.
guy@lemmy.worldto Political Weirdos @lemmy.world•There are solo many things wrong in this weird conversation...46·1 年前So the original tweet logically suggests that human men and woman are different species and that human babies are produce, a sellable raw material, perhaps edible.
I’m pescetarian, so I will eat fish, most of what I eat is either vegetarian or vegan. So it’s certainly easier for me than you. But here’s the thing, I was brought up this way, therefore I don’t like the taste of meat and don’t want imitation stuff either.
But I have no difficulty with this at all. A lot of dishes just have meat in them, but they really don’t need it, they’re good without it, it’s not the base of the dish. The foods in shops that are prominently labelled “vegan” or “plant based” are primarily meat and dairy alternatives, because there’s no need to label all the other things that have always been inherently plant based. At least in recent years it’s becoming trendy to label these foods “plant based” that would never have had meat in them anyway, it makes it clearer, but it’s not always the case and there’s no real need to.
guy@lemmy.worldto Linguistics Humor@sh.itjust.works•Hard time to be non-binary Spanish personEnglish7·1 年前Or just “Latin”. A word Latin Americans actually use. Really don’t need the X.
guy@lemmy.worldto Denver Post Comment Section@lemmy.world•Trump names Denver fossil fuel executive Chris Wright as energy secretaryEnglish2·1 年前Man’s fast tracking “create the most corrupt government possible”.
guy@lemmy.worldto politics @lemmy.world•Democrat moves to clarify the 22nd Amendment after Trump refers to running for third term6·1 年前Ah, but what if he simply gets rid of democratic elections, then he needn’t worry about the issue of being elected more than twice
guy@lemmy.worldto Parenting@lemmy.world•In ref to parents bringing their kids to Hazbin Hotel panels1·2 年前If it’s an issue, then the organisers shouldn’t let kids in, otherwise it’s at the parent’s discretion, not yours
Yeah, sure, just as easily as people switched from saying “Twitter” to saying “X”
guy@lemmy.worldto World News@lemmy.world•Russia submarines and naval ships cross into buffer zone off Alaska, U.S. Coast Guard saysEnglish3·2 年前To avoid sea ice, they entered an area they are legally allowed to enter… okay
That’s not what I meant, I meant if all organic life that produces oxygen disappeared.
Photosynthesis is generally so slow at it’s job that the current oxygen levels were only built up over hundreds of millions of years. Furthermore, Rubisco, a key enzyme in photosynthesis, surprisingly, is slow and not very good at distinguishing oxygen from carbon dioxide, because it evolved before there was much oxygen on Earth. Therefore a lot of oxygen was produced at the beginning, most of the oxygen we have today in fact, and then not very much thereafter.
Additionally, the Earth’s oxygen levels stay stable due to the release of oxygen trapped in minerals. Over those hundreds of millions of years, they absorbed it. This absorption and release has kept levels stable for well beyond our existence.
At least that’s what I got from the PBS video. If you don’t agree, go argue with them, I’m no expert. I’m just forwarding what I learned.