this post was submitted on 01 Jun 2024
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Science Memes

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[–] chetradley 148 points 5 months ago (22 children)

We're undoubtedly in the midst of another mass extinction, caused by human activity. Here's another one that will freak you out:

[–] [email protected] 108 points 5 months ago* (last edited 5 months ago) (4 children)

Here's a fun one about the fish:

[–] [email protected] 60 points 5 months ago (1 children)

That is not fun. That is the opposite of fun 🤕

[–] [email protected] 18 points 5 months ago
[–] [email protected] 21 points 5 months ago (1 children)

You can see where they decided "Profit, with no consideration of anything else!" was the answer

[–] [email protected] 9 points 5 months ago (2 children)

I'm going to guess it wasn't a decision, so much as tech availability and pricing. radar, sonar, more powerful boats with bigger trawl nets.

If they'd had that stuff earlier it'd be the same tragedy of the same commons.

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[–] [email protected] 15 points 5 months ago (1 children)

This is kind of misleading since they closed the fishery (I think in the 90s), so the amount of cod catch would naturally plummet. The fishery did, however, need to be closed due to overfishing.

[–] [email protected] 52 points 5 months ago (1 children)

Not exactly; it collapsed, then they closed it once it was too late, and now it's still fucked, 30 years later.

In the early-1990s, the industry collapsed entirely.

In 1992, John Crosbie, the Minister of Fisheries and Oceans, set the quota for cod at 187,969 tonnes, even though only 129,033 tonnes had been caught the previous year.

In 1992 the government announced a moratorium on cod fishing.[12] The moratorium was at first meant to last two years, hoping that the northern cod population would recover and the fishery. However, catches were still low,[16] and thus the cod fishery remained closed.

By 1993 six cod populations had collapsed, forcing a belated moratorium on fishing.[14] Spawning biomass had decreased by at least 75% in all stocks, by 90% in three of the six stocks, and by 99% in the case of "northern" cod, previously the largest cod fishery in the world.[14] The previous increases in catches were wrongly thought to be due to "the stock growing" but were caused by new technologies such as trawlers.[13]

[–] [email protected] 11 points 5 months ago (1 children)

That's a fair point. It still is a misleading plot since it isn't an estimate cod population, and isn't representative of population after 1992. As you said the numbers are still bleak. I found this plot , Source , which does tell a similar story around the early 90s but indicates greater recovery in more recent years.

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[–] [email protected] 10 points 5 months ago (1 children)

Dude. This is loaded as fuck misinformation and you should be ashamed of yourself.

Cod fishing on Canada's eastern coastal area has been banned since 1992. That's why it's flattened out to nothing all of a sudden. They stopped Cod fishing there.

[–] [email protected] 55 points 5 months ago

Cod fishing on Canada's eastern coastal waters was halted in 1992 for two years, with the plan being that the population would recover and they could start fishing again. Did you think the population recovered and they just decided not to start fishing again because they forgot? Or that they just had woken up one day and decided to take the drastic step of banning fishing and throwing 30,000 people out of work and destroying one of their thriving industries because nothing had happened to the fish?

The collapse happened before the ban, not after. And they took long enough to notice and implement it that the fishery was driven to total, semi-permanent collapse before the ban, to an extent that they didn't fully realize until several years had gone by and the fish still hadn't recovered.

Here's a pretty detailed summary of the before and after. In 2005, after 13 years of the ban, the cod biomass off Canada's coast was still about 3% of its pre-industrial-fishing levels. That's why there's still a ban: Not that they just hate sending out boats and bringing in fish, but that the population's still fucked and not really recovering, and so any fishing would be simply giving some additional cleaver-whacks to the already dead golden goose. I don't know what the numbers are now, but I would be surprised if they are dramatically better, and I think the chart I cited is an extremely honest and vivid picture of the results of overfishing, and not loaded or anything else as-fuck.

[–] [email protected] 21 points 5 months ago* (last edited 5 months ago) (1 children)

There's something wrong with this data.

The fraction of asses should be way higher.

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[–] [email protected] 113 points 5 months ago (4 children)

Oh, my. I hadn't even noticed how much less I've had to clean my Windshield lately. That is a very bad sign...

[–] [email protected] 46 points 5 months ago (2 children)

It’s been a couple years since I’ve had to scrape the bugs from my windows.

[–] [email protected] 13 points 5 months ago (1 children)

I had to last week. It was the first time in years.

[–] [email protected] 10 points 5 months ago (2 children)

In Sacramento I clean mine almost daily. Just depends where you are really. Lots of farm land will always have lots of bugs.

[–] [email protected] 11 points 5 months ago* (last edited 5 months ago)

Let me give another example:

Traveling from Central Europe to Southern Europe to spend your holiday. In 1980/1990 you had to clean your windshield a couple of times when driving there.

Not any more.

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[–] [email protected] 70 points 5 months ago (4 children)

I'm 51, I spent the 90's in Louisiana, and since my wife doesn't fly, we have driven across the USA more times than we can count. In the 90's, if you didn't have a bug screen on your grill, the LoveBugs would clog your radiator and you would over heat. You also needed the windshield scrib and squeegee to scrub off the bug splatter every time you filled up. Now, you don't need either of them.

[–] [email protected] 17 points 5 months ago (1 children)

I have been thinking about this recently. How much of this is lack of bugs vs aerodynamics. I mean back in the day we all drove big rectangles. I'm not denying the fact that it could be a mass extinction of bugs. Just curious.

[–] [email protected] 39 points 5 months ago

Nope, seems to purely be the mass extinction thing. In fact:

modern cars hit more bugs, perhaps because older models push a bigger layer of air – and insects – over the vehicle.

https://www.theguardian.com/environment/2020/feb/12/car-splatometer-tests-reveal-huge-decline-number-insects

[–] [email protected] 11 points 5 months ago

Same in Europe.

[–] [email protected] 9 points 5 months ago (1 children)

Drove a ton in the 90s all across the US as well every year there was a couple several thousand mile vacations starting from near Kansas city.

The bugs were bad, but we never needed a bug screen on the grill. I never even remember seeing something like that exist, actually. Definitely less bugs now, though.

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[–] grue 62 points 5 months ago (3 children)

When I was a kid, there used to be hundreds of fireflies in my backyard in the summer. Now, I get excited to see even two or three.

I blame the anti-mosquito pesticide services half my neighbors seem to hire.

[–] [email protected] 44 points 5 months ago* (last edited 5 months ago) (2 children)

Where I grew up, the city wanted to hire a bunch of trucks to drive around spraying malathion into the air. They had a vote, and the town voted overwhelmingly that, fuck no they did not want that, please don't do that, that sounds awful. Then they did it anyway.

Same thing; now there are pretty much 0 fireflies.

[–] [email protected] 11 points 5 months ago (2 children)

Why did they even have a vote then? They just hoped everyone would say yes?

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[–] [email protected] 62 points 5 months ago* (last edited 5 months ago) (3 children)

This has bothered me for years. It's a really strange thing to be telling younger relatives about how you legitimately could not drive any substantial distance without windshield cleaner at certain times of year. I remember them being plastered across the front edge of the hood and against the radiator after a long trip.

It's one of the most visibly different things about the world today, IMO, and it's a little eerie.

[–] [email protected] 33 points 5 months ago

The sounds, too.

I was talking with my dad walking near to a place that had frogs croaking, and he got a little emotional and excited to hear them over the phone. Normally it's just traffic noises now, and silence.

[–] [email protected] 11 points 5 months ago

I remember the wasps always buzzing around the vehicle grills munching on all the dead bugs too. Now it's just shiny and chrome.

[–] [email protected] 8 points 5 months ago

I still remember 10 years ago when I was driving on the Autobahn at 130 km/h and a juicy bug hit the windshield. It was literally a loud splat. Besides the grill always being covered in bugs.

Hasn't happened since, nowadays I can count the number of bugs on the grill with one hand. And that's after months of driving.

[–] MIDItheKID 29 points 5 months ago (2 children)

Not quite correct. The 2020 image should have a car completely covered in a dust of green pollen because city planners only planted male trees for decades because female trees would produce fruit or seed and be a "nuisance" and/or create trash/animal bait etc...

But if they only planted female trees, they would never get fertilized, so they wouldn't produce fruit anyway... Or pollen.

Worst case scenario, they would produce fruit, and cities would still smell bad and have rodent problems. But without the allergies.

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[–] [email protected] 23 points 5 months ago* (last edited 5 months ago) (7 children)

I'm so dopey. I thought this was suggesting that we'd invented some clever formulation to stop dead bugs sticking to windshields in 2020 and that we'd all have fully autonomous cars by 2050.

[–] mipadaitu 13 points 5 months ago* (last edited 5 months ago)

There ARE fewer bugs, and that's a problem, but also cars are more aerodynamic and would kill fewer bugs these days regardless.

Hmmm... This article suggests the opposite.

https://www.theguardian.com/environment/2020/feb/12/car-splatometer-tests-reveal-huge-decline-number-insects

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[–] [email protected] 19 points 5 months ago

Whoa, this is disconcerting. My folks used to run a rental car agency and I helped out every now and then by cleaning cars. I remember cleaning so many bugs off of cars 20ish years ago, and now on my own car - barely nothing. :(

[–] [email protected] 17 points 5 months ago (5 children)

Idk but I’m reminded of the 2002 adaptation of The Time Machine. One of the great achievements of our civilization was an advanced AI with all of our collective knowledge that you could converse with. Feels like our AI tech is on track to get there by the time we start dying off en mass lol

[–] [email protected] 13 points 5 months ago* (last edited 5 months ago) (3 children)

There are quite a few wonderful stories about the AIs continuing after humans are gone. "For a Breath I Tarry" by Roger Zelazny, and the whole of the Cyberiad by Stanislaw Lem, are some great ones.

That being said one of the critical points of "For a Breath I Tarry" is that the machines are just doing what they're programmed to do, maintaining the infrastructure for no one and just sitting in their orbits keeping the power grid going and all, and are actively hostile to any effort to bring the humans back because that would make things complicated and isn't in their programming (since although superficially they can converse and act "intelligently," more so than humans, they can't really grasp the purpose of things.) Also, "With Folded Hands" by Jack Williamson is another perfectly realistic one.

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[–] [email protected] 16 points 5 months ago* (last edited 5 months ago) (1 children)

I'm [emotionally*] ready for the hyper-industrialized moon-scape our planet will become once our environment completely collapses. I think there will be a point past which any environmental protection measures will be useless because there's nothing left to protect so industrial landscapes will become the norm.

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[–] [email protected] 16 points 5 months ago (12 children)

My parents never gave me money unless I worked for it and washing their cars was one of those few things they did pay me to do. I remember always having to scrub bugs off the front, it was the hardest part. I've literally never washed my road cars because its just dust.

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[–] [email protected] 13 points 5 months ago (2 children)

Last panel should have one of those stock scanning robots behind the wheel.

[–] [email protected] 16 points 5 months ago (1 children)

With a human body on the windshield?

[–] [email protected] 9 points 5 months ago

And a tesla logo on the bonnet for absolutely no reason at all wink wink

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[–] Luvs2Spuj 11 points 5 months ago (1 children)

Stop cutting your lawns and dig a pond. It's not going to stop industrial scale destruction, but it's something actionable that you can do yourself and see the positive impact right at home. If enough homes do it, a network of gardens can become a macro system.

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