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joshdykgraaf OP t1_iuy8o49 wrote

This image is a manipulation of satellite photos of the Great Barrier Reef off the Australian coast and Islands along it, shaped into the form of a Green Sea Turtle. The satellite images are sourced from Digital Earth Australia.

Of the animals being impacted by climate change, Green Sea Turtles have probably the most unusual extinction path I've read about so far. The gender of animals such as turtles and crocodiles is determined by the temperature experienced during egg development. Green Turtles develop into females if the temperature of the nest is more than 29°C (sand temperatures above 34°C are fatal).

As ambient and ocean temperatures rise due to climate change, recent surveys have found that turtles hatching from beaches in the southern Great Barrier Reef are 65-69% female, but those hatching from northern beaches are 99% female.

The researchers concluded that the northern rookeries have been producing primarily females for more than two decades, and that complete ‘feminisation’ of the population may occur in the very near future, with disastrous consequences.

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kelvin_bot t1_iuy8p4y wrote

29°C is equivalent to 84°F, which is 302K.

^(I'm a bot that converts temperature between two units humans can understand, then convert it to Kelvin for bots and physicists to understand)

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DePraelen t1_iuy8wzt wrote

Haha did not expect to see this bot active in r/art

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joshdykgraaf OP t1_iuy9noe wrote

I guess it could make sense to have it active for posts discussing ceramic art?

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Candyvanmanstan t1_iuzwzio wrote

Makes sense everywhere, imo. With Reddit's split of US/Intl users.

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jam-and-marscapone t1_iuzli77 wrote

I wonder whether we can dig up a bunch of eggs and incubate at 27°C and then deliver them to the water upon hatching.

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TheMadTemplar t1_iuzo8y2 wrote

This is likely to happen if we want to preserve various species around the world which have temperature determined genders.

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TitaniumDragon t1_iv192de wrote

Back during the last ice age, global temperatures were far lower than they are today, but many species used this sort of temperature dependent gender determination.

These species still exist today, even though global temperatures have changed by more than 4C since the last ice age - well beyond the range in question.

If you spend a few moments thinking, you'll realize immediately that these things don't match up. Why aren't these species already extinct? The Bølling–Allerød interstadial and Younger Dryas surely would have killed them off.

The answer is, of course, that the "logic" is wrong.

IRL, what actually happens is a few things.

First off, species can migrate north/south. When temperatures go up, they can go to more southerly areas that were previously too cold for them; when they go down, they can go to more northerly areas that were previously too hot for them.

Secondly, if you have a mutation that gives you the ability to produce the gender that is less common, your offspring will hyperproliferate. This is especially true in this case, where you end up with more females than males; the males that exist have a ridiculously huge reproductive advantage, which results in extremely strong selection towards producing more male offspring.

It's actually pretty unlikely it will lead to their total extinction, given that they've survived previous large temperature swings in the past.

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DeathByLemmings t1_iv1aycv wrote

While comforting if true I feel like you have a subtext, please correct me and say you were just setting peoples mind at ease on the subject of turtles

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TitaniumDragon t1_iv2e13y wrote

It's really more of a general thing about global warming. Most people don't understand what effects global warming will actually have very well; they don't have a good grasp of what it entails.

Most people have little understanding of the science behind global warming, and instead get their impressions from the popular press, which does a poor job of covering it because journalists aren't scientists. So you get very sensationalist stuff about how everything is going to die, or on the other side, articles about how it is a big nothingburger because the sensationalist stuff doesn't happen or blames every single weather event on global warming.

The actual science of global warming and climate change and modelling the effects is very interesting, but most people don't (and really, can't) read science papers, so they have to rely on intermediaries.

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DeathByLemmings t1_iv2pvvi wrote

Ok, and what are the implications to you then?

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TitaniumDragon t1_iv2zgne wrote

It's an expensive annoying long term problem.

The biggest problem in the extreme long term (hundreds to thousands of years) is the ice caps melting; we aren't sure exactly how long it will take, but it will take a long time (present models suggest we will likely see less than 1 meter of sea level rise in 2100). In the long run, having much higher sea levels (tens of meters higher than present) will be the largest negative consequence due to loss of currently desirable land area.

It will cause a net increase in arable regions and overall increase precipitation, but some areas will get drier and undergo desertification due to a higher evaporation rate and shifts in rainfall patterns. The increase in precipitation will also likely cause increased flooding in some areas, while the increased rate of evaporation and higher temperatures may cause more wildfires.

It will make winters more mild, but it will make summers hotter as well. Ironically, this will probably cause a net decrease in human deaths due to inclement weather; winters kill more people than summers do, and with the continued proliferation of air conditioning, that's likely to get even more extreme. However, it might cause some pests to expand their regions poleward.

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[deleted] t1_iv3a7k2 wrote

[deleted]

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TitaniumDragon t1_iv3qs43 wrote

> The BIG thing you are missing here is the time scale. The transition into and out of the last ice age lasted tens of thousands of years.

This is incorrect, actually.

The transition from ice age to not ice age took only 3,000 years.

But it was actually uneven and even faster than that; I'd recommend clicking on those Wikipedia articles.

The last ice age shifted from glacial conditions to not at the start of the Bølling–Allerød interstadial occurred in perhaps 200 years.

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[deleted] t1_iv3vu83 wrote

[deleted]

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TitaniumDragon t1_iv3ywjv wrote

If you want to extend that out to the full 10C change, that happened between ~17.5kya and ~11.5 kya - a period of about 6,000 years. You could extend that back to 19kya if you are generous and count from the very earliest glacial retreat, which is about 7.5kya

Moreover, there was massive acceleration in the glacial retreat after 15kya. That's what really marked the start of the end of the Ice Age; the vast, vast majority of the melting occurred between 15kya and 11.5kya.

And as noted, there was a massive warming event, that I literally linked you to in my post and that is visible in that graph you linked to, that saw 3 C of warning take place in just a couple centuries.

The idea that the climate only changes very slowly is actually false, and it is the sort of thing that no one with any real comprehension of science claims. It can happen quite fast; 1 C variations in temperature in a century are common, and 3C in a couple centuries has happened.

I'm not sure why you're lying about this, other than because you don't want to admit you're wrong. Even the graph you linked to shows you are wrong.

https://en.wikipedia.org/wiki/B%C3%B8lling%E2%80%93Aller%C3%B8d_warming

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brocomb t1_iuyj64s wrote

It's turtles all the way down

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Millikan t1_iuyiz3m wrote

See the TURTLE of enormous girth. On his back he holds the earth.

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CreationismRules t1_iuz35ts wrote

His thought is slow but always kind; He holds us all within his mind.

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Gnarbuttah t1_iv085xe wrote

See the turtle, ain't he keen. All things serve the fuckin' beam.

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RickMacd1913 t1_iv0wik6 wrote

On his back all vows are made; He sees the truth but may not aid. He loves the land and loves the sea, And even loves a child like me.

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mostlydeaf t1_iuyesdy wrote

Earth is flat? No. Earth is sea turtle.

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RegularHousewife t1_iuyjbrj wrote

Definitely, we need to move around the orbit somehow. Maybe one day we could do space travel-

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BurnTheBoats21 t1_iv10d8k wrote

im Ojibwe and it's not uncommon to hear north America referred to as turtle island. always loved the sound of it lol

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Nawnp t1_iuyuxxs wrote

Remind me of the Lion Turtles in Avatar the Last Airbender.

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rwidebrant t1_iuzt4ib wrote

Where are your elephants A'tuin?

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Choco-waffler t1_iv0rs61 wrote

Came here for the discworld reference. Was not disappointed, cheers.

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deepoutdoors t1_iuyrv6z wrote

A very nice Aspidochelone.

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joshdykgraaf OP t1_iuyv5ai wrote

Huh. TIL that's what they are actually called. I'm familiar with the concept obviously, as these type of creatures are in mythology all over the world - no idea the general concept had its own name (of course it does I guess).

I like that word a lot.

Also, thank you!

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Woodstock_PV t1_iv0k5z4 wrote

I know it by the name of Zaratan as featured in "The Book of Imaginary Beings" written by argentinian Jorge Luis Borges. This work is like a medieval bestiary gathering folktales from around the world.

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Schmancer t1_iv2pyrh wrote

I know it by the name of Zatarain’s, a delicious box of rice gathered from New Orleans

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Cover_Some t1_iuye2jy wrote

This is gorgeous and I love it.

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Chromattix t1_iuyofcf wrote

Stunning! I can't believe how real this looks. Also reminds me of Super Mario Sunshine with the dolphin shaped island which on the map you see briefly is near a turtle one. I always wanted a sequel where the turtle island and others could be explored. Nice job!

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DePraelen t1_iuz8l3d wrote

There's so much detail too. It's worth zooming in on it.

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what_on_roshar t1_iuzgr59 wrote

r/stormlightarchive might like this. Looks like a Reshi Greatshell!

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Criticalhit_jk t1_iuzqygw wrote

These guys are all over Chinese literature as well, I'm most familiar with a turt city as Patriarch Reliance from Er Gen's I Shall Seal the Heavens. Which, by the way, is fantastic

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Novaskittles t1_iuzdbdk wrote

Thought it was a DnD battlemap at first lol

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joshdykgraaf OP t1_iv08j73 wrote

I don't mind that at all really. I might use it as a campaign map at some point actually.

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orlock t1_iv0iq13 wrote

Little A'Tuin. I suppose the elephants form at puberty.

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jeremy4a t1_iv14rtb wrote

There’s good eating on one of those

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thermidorthelobster t1_iv0bypz wrote

I give it a day before I see this all over Boomer Facebook as proof of God’s beauty

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attarddb t1_iuyn4sn wrote

This is amazing. Great job!

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okram2k t1_iv1ay3e wrote

I love almost everything but I can't help but feel those birds are way too big compared to the size of everything else.

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joshdykgraaf OP t1_iv39bjr wrote

Yeah I had that thought, it was a matter of if I made them "real" size they wouldn't be visible, but I wanted the detail there

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GreaterThanLurker t1_iuz2kfj wrote

Play a song for the mask waits, on that final day, we will take on Majora.

Wonderful take on the reef, your perspective reminds me of one of the best Zelda titles. Thanks for sharing the knowledge, I have high hopes your art will garner attention for the better and inform many, so surreal.

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Lunarken t1_iuze4q4 wrote

When it dives down while you're doing laundry ( . _ .)

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iknowkungfoo t1_iuzexzl wrote

Dude! Literally watching Finding Nemo as Marlin & Dory exit the EAC & saying goodbye to Crush.

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midromney t1_iuzjcfn wrote

Your 2023 #1 pick in the NBA draft, ladies and gentlemen.

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Rokekor t1_iuzk5ar wrote

I feel shame but that looks like a great tax haven.

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Mediocre-Cattle-9867 t1_iuzmff8 wrote

I see this and assumed it was depicting life in the form of life on the back of a sea turtle, like that “island” from dreamworks Sinbad

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Panman6_6 t1_iv089oc wrote

This is awesome. In my d&d campaign, a whole island is literally a giant turtles back. The island moves around (obvs)

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joshdykgraaf OP t1_iv09xnm wrote

I had the thought after I finished that I might use it for a DnD campaign map too. You'd be welcome to use for that.

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Panman6_6 t1_iv0aiq6 wrote

thank you for the permission to use.

Its a pirate themed campaign and the island is Tortuga. I thought it was fitting.

Thanks so much!

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MaxHannibal t1_iv0o1cy wrote

In real life we are all floating on the back of a space turtle.

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Panman6_6 t1_ivasfjv wrote

I thought we were just in a turtles dream in outer space

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PsiHightower t1_iv08zrf wrote

It’s turtles. ALL the way down.

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WisdomDota t1_iv0iqeh wrote

Wow this is seriously awesome!

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ClaudioHG t1_iv197fp wrote

Ok, great artwork, but let's talk seriously now: where can I book for my holidays there?

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joshdykgraaf OP t1_iv39iob wrote

Haha most of the images/textures are around Whit Sunday Island and Hamilton island if you want to see the real life version

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COINTELPROfessionals t1_iv1adk5 wrote

I thought this was r/dndmaps for a second. I might use this on my Roll20 campaign sometime!

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Piccoroz t1_iuyx7js wrote

Always made it to turtle in golden axe.

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doodle02 t1_iuzp57c wrote

what’s that pole sticking out from the right side? a space elevator?

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joshdykgraaf OP t1_iuzpxof wrote

It's an LPG pipeline and ship terminal, most of the 2,000km+ of the coastline along the Great Barrier Reef is inaccessible to deepwater shipping so they build these for access

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doodle02 t1_iv14bxa wrote

extremely cool work. i figured the elevator thing was wrong given that we don’t have one and this is satellite sourced.

thanks :)

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DasBiermann t1_iuzput7 wrote

This is gorgeous. I love the sandbar flippers.

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uruguay2609 t1_iuzq011 wrote

This is a nice idea for a game, I'll think about it more

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S-EATER t1_iuzr6oa wrote

Gulf state leaders seeing this: write that down write that down

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carriesonfishord t1_iuztfpu wrote

This is where Killer Bee trained Naruto to control his tailed beast.

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Kalimatai t1_iuzypvw wrote

Didn’t this dude teach Aang how to chi bend?

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run_bike_run t1_iv08ttp wrote

This feels like a Cities:Skylines map waiting to happen.

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tor-e t1_iv09hw3 wrote

This would be an amazing City Skylines map

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SARCX2019 t1_iv0i3le wrote

An island turtle. Great. Can't wait to see its inhabitants

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gmb87 t1_iv0toiv wrote

It's fun to stay at the WayambCA

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Matayas42 t1_iv13304 wrote

This is cool and all but where are the elephants?

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jeff89jdf t1_iv1shfy wrote

Is this the next UAE island? /s

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reusernames t1_iv1w3wg wrote

Top fire. This is sooo good.

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Pixel_Mag t1_iv20z5d wrote

Is it panda's island from World of Warcraft :D ?

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LawTider t1_iv2gmtm wrote

Ah yes, I love these “giant turtle = island” things.

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taavidude t1_iv2k35n wrote

Oh hey, it's the Wandering Isle from World of Warcraft.

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Tank7997 t1_iv02h71 wrote

Quit lying, this is obviously fake

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