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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

Replying to joshdykgraaf (#438,012)

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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Cover_Some t1_iuye2jy wrote

This is gorgeous and I love it.

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mostlydeaf t1_iuyesdy wrote

Earth is flat? No. Earth is sea turtle.

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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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brocomb t1_iuyj64s wrote

It's turtles all the way down

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attarddb t1_iuyn4sn wrote

This is amazing. Great job!

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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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Nawnp t1_iuyuxxs wrote

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

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joshdykgraaf OP t1_iuyv5ai wrote

Replying to deepoutdoors (#438,869)

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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Piccoroz t1_iuyx7js wrote

Always made it to turtle in golden axe.

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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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TikkiTakiTomtom t1_iuz7i7e wrote

Is that a lion turtle? Wait… it’s just a turtle…?

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LiquidOcelot41 t1_iuzabkl wrote

I turTotally understand how this became a popular creation myth.

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Novaskittles t1_iuzdbdk wrote

Thought it was a DnD battlemap at first lol

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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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what_on_roshar t1_iuzgr59 wrote

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

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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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doodle02 t1_iuzp57c wrote

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

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DasBiermann t1_iuzput7 wrote

This is gorgeous. I love the sandbar flippers.

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joshdykgraaf OP t1_iuzpxof wrote

Replying to doodle02 (#440,216)

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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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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rwidebrant t1_iuzt4ib wrote

Where are your elephants A'tuin?

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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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Tank7997 t1_iv02h71 wrote

Quit lying, this is obviously fake

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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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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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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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SARCX2019 t1_iv0i3le wrote

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

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orlock t1_iv0iq13 wrote

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

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WisdomDota t1_iv0iqeh wrote

Wow this is seriously awesome!

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Woodstock_PV t1_iv0k5z4 wrote

Replying to joshdykgraaf (#438,988)

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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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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TitaniumDragon t1_iv192de wrote

Replying to joshdykgraaf (#438,012)

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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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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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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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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jeff89jdf t1_iv1shfy wrote

Is this the next UAE island? /s

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Pixel_Mag t1_iv20z5d wrote

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

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TitaniumDragon t1_iv2e13y wrote

Replying to DeathByLemmings (#443,022)

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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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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TitaniumDragon t1_iv2zgne wrote

Replying to DeathByLemmings (#445,619)

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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TitaniumDragon t1_iv3qs43 wrote

Replying to [deleted] (#446,559)

> 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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TitaniumDragon t1_iv3ywjv wrote

Replying to [deleted] (#447,469)

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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