Questions tagged [environment]

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

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2
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1answer
83 views

What plant crops can grow using only 75% light intensity? [closed]

Are there any plant crops that can grow reliably well at only 75% light illumination?
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0answers
35 views

Enhanced Rock Weathering in the Sahel Region of Africa [closed]

A recent Guardian article "Spreading rock dust on fields could remove vast amounts of CO2 from air" has gotten some attention in the nongovernmental and UN organizations working in the Sahel ...
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3answers
297 views

Threats in a post-apocalyptic world without mutants?

So, today I asked a question about whether or not the mutants in my world were realistic Realistic mutated animals in a post-nuclear Earth? and apparently from the answers I got, they sadly weren’t, ...
37
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17answers
12k views

What society might survive the 3 generation rule

A not widely accepted psycho-social phenomenon but one our descendents might sometime face, the Three Generation Rule states: that the degree of social discipline needed for a space habitat to ...
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2answers
297 views

What environment would Orcs be best adapted for?

In my story Orcs, humans, and a bunch of other fantasy races live along side each other and i'm curious as to what sort of environment (on earth) would best suit them? so basic characteristics of my ...
2
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1answer
70 views

Could a new impact basin be responsible for desiccating an entire planet?

Situation: A planet similar in size to the Earth has a Eurasia+ sized continent at its South Pole. It is hit by a huge asteroid near its South Pole. This would produce a very large crater/basin. ...
2
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3answers
327 views

what is the highest altitude a group of Yetis could live at?

A long time ago a group of proto-giants moved high up into a the Pseudo-Himalayas. Yetis commonly live up on high mountain plains some of basic characteristics of Yetis are: have human level ...
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4answers
2k views

To the World of Death?

In a nearby star system to Earth, there lies an... interesting planet. Thirty thousand atmospheres of pressure, "surface" temperature of 5,500 kelvin, an atmosphere made of gaseous sillicates and ...
19
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12answers
5k views

How can a portal that connects two planets affect the environment?

In my world there are two planets within the same solar system, which are connected approximately every seven cycles through a portal that opens for a few days. The planets are very similar. The ...
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4answers
146 views

Habitable planet with extreme hot and cold regions that is not tidally locked

I would like to create a world with a temperate habitable zone as well as very hot and very cold zones. The hotter and the colder the better, but I don’t want it to be tidally locked. How can I do ...
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1answer
145 views

How would a humanoid species adapt to live in a area that is covered in semiperminant mist/fog?

So I have been working on world-building regarding a humanoid race living in a sheltered archipelago. The archipelago is sheltered from the open sea by the edge of a mountainous, densely forested ...
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6answers
2k views

Minimum housing standards for Single meal self-sufficiency

In my culture we place a high value on self-sufficiency. This means that according to tradition at least one meal a year must be prepared from ingredients that have been grown at home. This is going ...
8
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6answers
2k views

Are there plausible planetary conditions that make aircraft less effective weapons against ships?

IE, atmosphere density, gravity, chemical composition of land, air and sea... Somewhat of a counterpart to my own Are there *plausible* planetary conditions where jet aircraft just don't have ...
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5answers
783 views

What natural defenses might an ecosystem evolve against dragons?

In a world in which dragons (as animals, minus magical associations) existed, what natural defense mechanisms might other animals or plants evolve in response? How would a creature as devastating ...
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2answers
75 views

Effects of a star and planet on human evolution

Possible Human Evolution I am working on a series set in Alpha Centauri where (in the universe) there are 4 main habitable worlds and a couple that have protected surface dwellings. As well, there ...
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1answer
36 views

Could a population lemurs evolve to suite colder climates and fill the niche or similar niche of squirrels?

In my world there is a southern continent that features some of the fauna from Madagascar and this includes the lemur. I’m wondering if the lemurs that live on this warm southern continent could ...
4
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3answers
128 views

How do my plants trap so much carbon?

The boom-bust cycle answer I took for my question: Sustainability of Regular Global Wildfires due to Oxygen Rich Atmosphere pends on the atmosphere being rich in oxygen but poor in CO2. I, however, ...
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3answers
112 views

What are the consequences of an earth overgrown with plants?? [closed]

Imagine if humans solved the climate crisis by developing plants that grew almost like a cancer. Imagine the growth as exponential, uncontrollable, and any chances of cutting down the trees would be ...
4
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3answers
327 views

When earth is filled to the brim with plant-life, can it cause a hyperoxic environment?

Say humans found a way to exponentially increase the capability of plants to grow. Is it possible for it to cause an environment that can cause oxygen toxicity in humans?
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13answers
2k views

What would our planet look like with unlimited and cheap (i.e. almost free) energy?

Imagine the population of our planet is given free (almost) and unlimited energy. What kind of technologies would go mainstream which are not feasible today due to prohibitively high energy ...
2
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1answer
85 views

How would Aliens care for “endangered” humans? [closed]

Sci-fi novel. Book is told from the POV of a alien that works at the sanctuary. I don't think this is too important, but the aliens are sort of an anthro-snail that lives on the underground and ...
10
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6answers
1k views

How can a nation that preys on its neighbors survive in the long term?

There is a veil which separates our reality from a parallel dimension that contains Eldritch abominations. An predatory empire has discovered that they can harness the power of this realm by summoning ...
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2answers
77 views

What new types of environments are possible on an intelligently designed habitat? [closed]

Humans have taken the stars and are capable of building pretty much anything they want(but the laws of physics are still the same), and a group of them decide they want to make a habitat with a ...
8
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4answers
629 views

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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7answers
765 views

How to survive outside a bunker during nuclear winter?

Nuclear War has just destroyed much. You’re a human living far out in a rural community in the US, or Russia or wherever. You’ve managed to avoid the direct destruction caused by the bombs going off. ...
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1answer
140 views

How Would Hominids Evolve to a Mountain Environment

My non-magic fantasy world has a species of hominid that lives in a huge and wide sierra of mountains. If they had split off from the (now dominant) human species a couple million years ago, (say ...
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3answers
346 views

Where could Elves build a self sufficient stronghold?

light Elves now a days are mostly peaceful but they weren't always. a long time ago their was a mighty Elven empire being the first to smelt steel while the other races were still using bronze armor ...
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3answers
643 views

What environment would Giants be best adapted for?

In my story Giants, humans, and a bunch of other fantasy races live along side each other and i'm curious as to what sort of environment (on earth) would best suit them? some basic characteristics of ...
9
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6answers
4k views

Could a red tree exist?

I recently started to wonder what a tree would be like on an alien world, and one thing that popped in mind for these trees was their color. The hosts star and environment would have a effect on said ...
4
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1answer
121 views

Without powered greenhouses or trade, what's the coldest possible climate for a sustainable nation?

In a setting where an empire establishes an island colony far to the north, what is the coldest climate such a colony could sustainably survive were that empire to collapse and stop sending supply ...
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2answers
198 views

Plausible reasons for a whole planet to have a temperate oceanic climate?

In my book series, I’m worldbuilding a planet whose culture is based on Celtic mythology and history, and in order to be consistent with real life I feel like the whole planet’s environment needs to ...
4
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2answers
87 views

Effect of high frequency of impact events on geography,climate, and environment

Earth sized planet in the goldilocks zone. Similar mineral composition and surface water. Photosynthetic life evolves and thrives on land and sea. Atmosphere and climate comparable to the beginning ...
6
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3answers
137 views

In an Ice Age Extinction, Which Latitude Would Be Hit Harder--Tropical or Temperate?

Back home, five million years ago, the warm, wet climate of the Miocene sloped downwards into the cooler, drier Pliocene before descending even further into the more so Pleistocene. The slope was so ...
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4answers
193 views

How can natural chimerism be advantageous to a species?

Genetic chimerism is a condition in which a single organism is composed of cells with more than one distinct genotype. In animals, this means an individual derived from two or more zygotes, which can ...
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3answers
310 views

How do I stop Megalodon from going extinct?

A long time ago, the 60 foot long Megalodon roamed the oceans. Fast forward to 2.6 million years ago and they went extinct. In the story I'm writing Megalodon hasn't gone extinct surviving at least up ...
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2answers
117 views

What is colder a cold planet or vacuum of space? [closed]

Considering a cold planet , very cold one, would an environmental suit be specifically needed for such an environment or a spaceuit would be enough? Considering the planet has an atmosphere to ...
1
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1answer
204 views

What would be the repercussions of Megalodon never going extinct? [closed]

A long time ago the 60ft long Megalodon roamed the oceans, fast forward to 2.6 million years ago and they went extinct (and yes they definitely went extinct don't let the discovery channel fool you). ...
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4answers
213 views

What circumstances would encourage polyandry across a species as the most likely outcome? [duplicate]

In this world, the nuclear family took a different route. The wife of a household would marry multiple husbands. This would usually be two, although wealthier wives might have more if they can support ...
8
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2answers
97 views

How long would it take for wildlife to colonize a newly exposed habitat?

A magical calamity has wiped out an area about twice as big as Germany. The calamity also altered the climate in the region from one supporting forests and grasslands to a desert similar to the ...
8
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3answers
250 views

How quickly could a rogue Earth return to habitability after a deep freeze?

Background A large star makes a relatively close approach to a solar system like our own and the orbits of many of the planets are badly perturbed. A planet similar to Earth is in the wrong place at ...
6
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2answers
564 views

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 ...
10
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3answers
3k views

Is it possible to farm in a swamp?

In my world they live in a swamp similar to the Okeefenokee swamp in Georgia. My question is, would it be possible to farm certain plants like wild rice, milkweed, and lilypads in these conditions? ...
8
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1answer
237 views

The Great Oxidation Event…Artificially Imposed on a Tharn-Like Alternate Earth

From 2.4 to either 2.1 or two billion years ago, Earth underwent a surge in a waste product that we know as "oxygen". Before that, life thrived in an ocean rich with iron under an atmosphere loaded ...
4
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2answers
202 views

How to construct an Earth-like world with very high wind speeds

I want to create a world where humans can live outside (perhaps with some protective clothing) but where very high winds exist in almost all potentially habitable areas making life outside impossible ...
3
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2answers
156 views

Feasibility of a massive and nigh-permanent sandstorm?

In my military sci fi story in which a squad of private contractors have to contend with hostile creatures reliant on scent and mechanoreception to hunt, I wanted to keep the sci-fi 'hard' and ...
1
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0answers
62 views

What would a planet with a notably high sulfur content but otherwise Earthlike composition be like? [closed]

I'm currently working on making a planet with mostly Earthlike chemistry, but I want to throw something into the mix to make it distinctly different from Earth and most likely uninhabitable to ...
9
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8answers
9k views

If people were the size of cats, and the land was scaled down accordingly, what would the size of England be?

So imagine people were the size of house cats, and the world's land masses were scaled down accordingly (in volume). In comparison to the original size of the landmass, how big would England be? And ...
3
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3answers
320 views

Which human-made monuments would still be standing thousands of years after an apocalyptic event? [duplicate]

It has been several thousand years since an apocalypse happened. The cause was some kind of explosion, be it nukes or a extinction-event meteor. Humans have persisted, as they do, and have effectively ...
3
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1answer
101 views

Reality Check on Forest Placement

I'm trying my hand at this new map-making program and while I know the basics of rivers and mountains, I realized I don't know the fundamentals of where to put forests. I've tried to follow the rules ...
3
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2answers
222 views

How Could People Utilize a Hypereutrophic Sea?

In a previous post I asked about the feasibility of connecting the ocean to a dried sea bed with hand tools and it was pointed out how environmentally disastrous this would be. So the bronze age ...

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