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Questions tagged [environment]

For questions about an environment or aspects of it such as geographical, atmospheric or climate.

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Is this 80.000km-diameter world plausible?

Characteristics: has close to 80.000km in diameter The atmosphere is composed of: -30% hydrogen (cold gas planets have hydrogen but it makes sense it exists in a rocky planet?) -20% oxygen -49% ...
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How would a half-steppeland, half-desert kingdom with only a single river function?

On one of the continents in one of my fantasy worlds, I have a kingdom. The kingdom is comprised of two different geographical regions, a steppeland area in the kingdom's north and a desert region in ...
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Reason why a mountainous Kingdom doesn't have/use much metal

Essentially in my world I have a large and mountainous kingdom, but I have always envisioned them wearing leather armor with cloaks etc. Is there a valid reason I could state for why they don't wear ...
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Open Polar Sea feasibility?

I know it's been proven false in our world, but what is the most plausible mechanism by which an Open Polar Sea could form and persist? I don't mean all the ice melting, but an open sea as it was ...
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How can I prevent holy aura from a human body from radiating too strongly?

When gods descend to the mortal plane, they must inhabit specially built bodies in order to maintain their presence and hold their aethereal energies. These bodies are built in the aethereal realm ...
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Constructing a desert area

I'm trying to construct a most realistic desert possible. I've made a continent with my little knowledge and may ask further questions about climate and similar stuff, but now I want to center on a ...
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Effects of a supermassive ship colliding with a planet

The basis of my story revolves around a single survivor escaping a massive colony ship gone critical above the skies of an alien world. After his escape via escape pod, the ship crashes halfway across ...
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What would life around a hydrothermal vent on Europa be like?

Hydrothermal vents are thought to exist on Europa. On Earth, these vents are surrounded by all manner of freakish and bizarre looking creatures, mainly various worms, crabs and octopodes. Europa's ...
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What factors need to be taken into consideration for a self-sufficient refugee camp

I have been pondering on this for quite a while. With all the recent developments in the world, more and more people are driven from their homes and have to rely for a prolonged period of time on aid. ...
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Planet with infinite overlapping surface on an axis, problems of the concept

I’m beginning to build a world for a story I want to write. The world consists of a planet, roughly earthsized, with a couple of natural satellites (moons), and roughly same orbit and a similar star. ...
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Technology to produce food without land, what will happen with the land next?

Let's say we have the technology to produce all of the human food in factories without the need for land (i.e. Solarfood, Memphis Meats). Right now, there is about 50% of all habitable land use for ...
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Effects of gravity upon weather?

So there are loads of things that are taken into account with weather from geology to water currents to axial tilt etc. But i am wondering what the effects would be on weather on planets with varying ...
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Is it possible for a planet to have few metal ores but an overabundance of gemstones?

Background: The planet is very volcanic, having at least a dozen volcanoes on any landmass and even more in the oceans. I want the planet to have very few metal ores but a complete overabundance of ...
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Living on a Giant Tree - Houses

This is one of a series of questions centered around living on a giant tree. The setting/scenario is described below: In my fantasy world, elves live on a giant tree, very similar in structure to ...
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Could a new auto-immune disease develop because humans live in too sterile of an environment?

In the future, AI systems sanitize humans as they walk through doorways. Home surfaces self-sanitize. Food is mostly 3D printed from cleaned particles, including Vitamin K and possibly some probiotics ...
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What could cause Venus to go from an Earth like state to its current state?

Adhering to natural laws and physics as much as possible[1], what could cause Venus to go from a habitable planet to its current state, and how long would it take ...
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A snow sea: How to make water snow light/smooth enough to obtain fluid properties under 1 gravity

A roughly earth-size planet orbits a cool G-class star, but barely within its circumstellar habitable zone ("Goldilocks zone") allowing liquid water. It has a shallow inclination and and lackluster ...
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What would happen if a volcanic cave was connected by a tunnel to a frozen cave?

Subangea is a giantic cave that stretches below the surface through endless cavities. From oil oceans to volcanic sinkholes and even upside-down forests, the environment is ever changing from one ...
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What is the expected terrain for an arid highly eccentric Earth-like planet?

For this question lets take a trip to Slyo Dacas: Slyo Dacas (sil-yo-dak-iss) is a world roughly the same size of Earth with a decent magnetic field and no moons. The world is a bit drier than ...
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Terrestrial ectotherms outside the habitable zone

Premise We have found extremophiles of the aquatic and microscopic types here on Earth, but so far large terrestrial extremophiles are the stuff of conjecture only. This makes it somewhat challenging ...
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Massive Maelstroms

Maelstroms are ginormous whirlpools. They can exist continuously in an area. They're cool. The question is, how large can they get? As large as an island? Could a maelstrom have a diameter of ...
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Revitalizing a planet formerly locked in an artificial winter — how long would it take?

So I have a planet that has had it's atmosphere clogged with artificial clouds for some five thousand years. Basically a prolonged ash winter; everything died. (Or, almost everything. Would I be right ...
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Struggling god with an unworkable universe [closed]

Background You are a member of a world of super-beings. Not everyone wants to be a god but those who do typically enroll at a Godiversity. They take classes in all sorts of things such as Ethics, ...
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What Color Can the Sky Be?

A good friend of mine, who's a doctor, is very well traveled, and he told me he's seen skies of different worlds take all the colors of the rainbow (and the grayscale to boot). I suspect that he might ...
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Entirely too much mana from the heavens

Time period is renaissance, with the most powerful culture being in a area geographically similar to the middle east. So a cleric was trying to combat a drought in his kingdom using the power of a ...
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What sort of habitats could exist Pre-Zanclean Flood which formed the Mediterranean Sea?

There is a lot of information on drying up a Mediterranean sized depression. However, there is not a lot of information on drowning such a large area or what sort of habitats could exist before the ...
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How would an ecosystem based around chemotrophs produce oxygen?

Outline A planet which is heated tidally by its Brown Dwarf parent and permanently dark needs to have native alien life which has [somewhat similar biochemistry to Earth] and also be [permanently ...
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What would happen if a large area had permanent cloud cover?

This question is not a duplicate of this question. They're similar, but this one has one very large difference: only a large area has permanent cloud cover, not the whole planet. If low clouds or ...
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Human caused apocalypse other than nuclear winter or climate change [duplicate]

I am writing a post apocalyptic story in which a large amount of the foliage is dead and agriculture has become much more difficult. My original idea was to say that this was caused by an ancient ...
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Detritivore farming

So I have this intelligent alien race of detritivores and I was wondering if it would be more practical for them to be a farming society or a hunter-gatherer society. I don't know if this is very ...
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How can I explain rainforests in a world with little, localized rain?

On the world I am building (Let's call it Bob for simplicity's sake), the days last 9 years. As a result of this, the living beings on Bob must migrate across the planet to avoid the encroaching night....
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Would a “city on a bridge” be friendlier to the environment than a more typical city on land? [closed]

The "city on a bridge" that I'm envisioning has the entire population living their entire lives on a habitable bridge or a series of such bridges over major rivers, only going on land for recreation ...
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How to go from Australia to Europe using correspondences?

I am writing a story where we have our real science-based world, and a parallel world where magic is the more dominant principle. In fact the principle of magic is so dominant, that one cannot travel ...
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Cave/Subterranean Lighting

I have a cave that is ravine like and stretches approximately one kilometer down into the Earth. Let's assume that the cave has a clear, crystalline roof allowing some light in. Is there any sort of ...
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A city where it doesn't rain in the day, for a month, and can farm on the outskirts

I'm trying to figure out if a certain city, with these characteristics, is possible, geographically: Assume the city's the size of Renaissance London... With Renaissance London technology Doesn't ...
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Can a planet with a dead core still generate a strong magnetic field?

Imagine a world with a dead core, like Mars, but covered in water. This world has managed to hold on to its atmosphere and quite a bit of its water as well. I'm sure the prodigious life there would be ...
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If Earth's atmosphere were to be enclosed, what effects would what have?

A universe-destroying parasite is set loose, and basically earth is placed under magical quarantine. (Think of it like the world is wrapped in magical cellophane.) My question is, how would earth's ...
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How might a life-sustaining planet exist with an “atmospheric ocean”?

This might be a little difficult to explain, but basically: the concept of "atmospheric ocean" is a gas that is found pretty much everywhere on the planet. Probably very dense and sinks to the surface,...
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What would happen if there was no wind?

Assuming that during the middle ages on Earth, all wind stopped. Some magic spell has made it so that air will no longer move faster than a gentle breeze from thermodynamics (the speed air moves out ...
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What changes would be needed for humans to live in an ocean?

Taking genetic manipulation of humans to change them to live in other environments, besides maybe gills what other physical changes would need to be done for a human to spend 95+% time living in the ...
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Salty or fresh or brackish waters?

So this is a small map of all the continents on the small planet of Parsas Decem. As far as most of the rivers go, I’ve got it figured out. What I’m wondering is, can salt water flowing in from the ...
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Aside from low gravity, what conditions favor dramatic terrain?

Fantasy and sci-fi works often are set in worlds of dramatic terrain, because, well... it's dramatic. A few examples of the kind of thing I'm talking about: I understand that Earth has some ...
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Gravity/Ecosystem on a peanut-shaped planet?

I'm interested about whether or not and how gravity would be affected on deformed planets. You could think of this as whether or not mega-asteroids would be able to sustain life? If so, would ...
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How would a floating island work? [duplicate]

Your basic, average floating sky island. How would a floating island 1. Get up high, and 2. Stay up. Here's the info you need to work with: The planet is Earth-like (supports earth like life) The ...
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Is waterwalking possible?

I am working on a world situated on the Earth. There is normal gravity, normal conditions of living - normal everything, except the human population itself. The situation: Humanity as a species ...
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Could a nomadic hunting society survive in a country without wind?

This question is similar to What would happen if there was no wind?, but the lack of wind is confined to a small portion of the planet. To make things concrete, the affected region is roughly circular ...
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Could “normal” human development lead to a sufficient air pollution to make gas masks mandatory?

I'm starting a story taking place around 2080, and I'm wondering if the key element -global pollution- is plausible. In my storyline, the XXIst century brings no huge technological advances (I mean ...
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How to remove most signs of past civilizations without destroying all life? [duplicate]

I am trying to generate broad ideas as to how to create a society with a refresh start. Where most signs of an advanced society (slightly more advanced then today's society) are gone but without ...
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What would a world with a 45 degree axial tilt look like

If an alternate Earth had an axial tilt of 45 degrees, what would the seasons look like? Being the most extreme tilt a planet can have before simply replacing North/South with East/West, obviously ...
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Can a planet have warm or temperate climates within its polar regions?

Note: an edit has been made to the main question at the bottom A couple of years ago, I had a worldbuilding project which I have recently revived. I was relatively new to worldbuilding back then, ...