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Questions tagged [climate-change]

For questions about planetary climate change.

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-2
votes
2answers
91 views

What will my grandson see? [closed]

It’s the year 2109, despite the efforts of the heroic climate change campaigners of my childhood the tide of human progress was too much to halt. Humanity didn’t change its ways and everything ...
1
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1answer
63 views

Could a Puma survive an Impact Winter?

I'm doing some researches for my book. I've read that the impact winter which lead to dinosaurs extinction was 18 months long. Long enough to kill plant life, big herbivorous and big carnivorous. I ...
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2answers
88 views

What would happens if global warming cause enough atmosphere loss?

What would happens if due to increased volume and reduced density, the global warming cause consistent loss into space of certain gases of atmosphere? What would we observe?
6
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4answers
1k views

What adaptations would be advantageous given a regular, but extreme variation in climate?

In a fantasy world I am constructing, a planet goes through regular, but extreme temperature cycling. Roughly every 500 years, the planet begins to heat or cool, dependent on its current temperature. ...
5
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2answers
178 views

Would building a large underwater dome be possible with European Renaissance technology?

So my novel setting is a pseudo-European continent that is at a Renaissance level of technology, and over the past century has experienced rampant sea level rise. I’d imagine that this would present a ...
3
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3answers
322 views

The Earth-like world's been shrouded by darkness. For how long would the civilization be able survive?

In this setting, the Continent has been hit by several catastrophes, caused by the inner workings of planet's tectonics, and the eruption of a volcano far on the other side of the world. Gravest of ...
26
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9answers
5k views

Keeping an “hot eyeball planet” wet

Consider such a tidally locked planet: Many issues with tidally locked worlds have been discussed, but I'm not clear on how the water cycle for an otherwise Earth-like tidally locked world, would be ...
3
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10answers
8k views

Would using carbon dioxide as fuel work to reduce the greenhouse effect?

I'm trying to find a plausible way to reduce global warming in a world past the tipping point. I recently read this article : https://www.sciencedaily.com/releases/2017/11/171127173225.htm. It ...
6
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3answers
382 views

Are there semi plausible scenarios where Nuclear Winter could last a thousand years or trigger an ice age?

Trying to develop a fictional scenario with a 'believable' theory as to how a Nuclear War and resulting Nuclear Winter could turn into a millennial scale ice age. By 'believable', I mean that it ...
7
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3answers
178 views

Preserving the mammoth steppe

During much of the Late Pleistocene stage, the world's most widespread biome was the so-called "mammoth steppe" - a cold, dry grassland which spanned eastward all the way from Spain to Canada. It was ...
8
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4answers
631 views

Is a post-climate apocalypse city in which many or most insects have disappeared realistic?

Supposing climate change continues at its current "worst case" projected rates, would we see a noticeable reduction in insects down the line? I am wondering if it makes sense to have a character who ...
13
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13answers
6k views

Is this state of Earth possible, after humans left for a million years?

It is the year 4056 (or probably later). The rocket with the last residents of Earth just took off, because global warming and pollution couldn't be stopped nor reverted and Earth became uninhabitable....
-1
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1answer
169 views

Do any of the things happening on this world actually have a chance of happening? And if they do, how long would humankind survive? [closed]

In this world, global warming has reached a tipping point. The equator has reached temperatures well over 212 degrees Fahrenheit (100 Celsius, 373 Kelvin), resulting in the "Boiling Sea". Global ...
0
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2answers
141 views

What are the logistics of wiping out the current world to the point a “new” generation of humans would not be able to find it? [closed]

Backstory I have a race of biologically advanced aliens that develop by fighting, adapting, and growing immune to the current highest standards of technology a species has to offer. By doing this they'...
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2answers
102 views

Underwater City- Applications of Nanotech

With the rise of global warming and our leaders not seeming to do enough about it, expanding our ranges past the earth's ground seems like something we must do eventually. Everyone always points to ...
2
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0answers
89 views

Post Apocalyptic world [closed]

Im a Film student and I'm currently working on a idea for a film involving a world after global warming and the deconstruction of civilisation. Whilst my ideas won't all be realistic to the Nature of ...
5
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2answers
169 views

Would a More Extreme Icing of Antarctica Create an Extinction Event?

55 million years ago, the world was literally a jungle. It was so warm that plants like the bald cypress and the dawn redwood have been found at Ellesmere Island, right inside the Arctic Circle. ...
3
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3answers
266 views

What kind of extinction event could solve Global Warming?

The world I'm creating will be referred to as E. Current E population is growing exponentially, and the population will become completely unsustainable soon. Global Warming is also increasing ...
1
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3answers
118 views

Government power in an Ice Age [closed]

The setting of my story takes place during a future Ice Age, where the equator and parts of the southern hemisphere are a safe haven for humans. Which countries or regions would most likely be the '...
6
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5answers
2k views

Could Comets or Meteors be used to Combat Global Warming?

The running theory is that if the Earth is hit by a sufficiently large meteor, that the impact would create an ice age from all the dust it would put into the atmosphere. While this has been ...
6
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2answers
192 views

Can enough CO2 be captured, in order to reduce global warming, to reduce oxygen levels to suffocating levels?

In a comment to a recent question, it was pointed out that Biosphere II failed in part because too much CO2 was absorbed by the concrete, leaving insufficient oxygen in available CO2 to be released by ...
5
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2answers
299 views

Reducing atmospheric pressure on Snowball Earth

A Snowball Earth is a global condition (which may have occurred many times) in which the temperature everywhere on the surface was, for extended periods (up to tens of millions of years), below the ...
43
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27answers
14k views

How could a time traveler have prevented climate change [closed]

Let's say a Moon colonist in the future has discovered an alien time machine. A small remnant of humanity still exists on colony worlds in the solar system, but due to runaway climate change, they are ...
4
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3answers
209 views

How large can a magical cold region be before it dramatically alters global climate?

In the setting I'm working on, I want to have a vast 'sea' of diamond dust that is sustained by some kind of chilling magic effect that's spread across the surface of the land. Since magic is ...
7
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3answers
228 views

Can black algae promote a global warming on a cold planet?

My world is at the outer edge of the habitable zone. There is enough heat and geological activity to start life, but a snowball earth is looming and threatens to freeze it all. There is some spring ...
7
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3answers
213 views

Plausible futuristic infrastructure for an underwater micronation built 300-500 feet below the surface

My story takes place hundreds of years in the future after global warming has made life at the surface uninhabitable for most life forms. What’s left of mankind survived because it became popular to ...
5
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4answers
238 views

How might a naturally-occuring geographical barrier between two areas *suddenly* become permeable so that a few people can cross it?

The world is Earth, probably west coast of the USA, in the throes of severe climate disaster; major storms, earthquakes, droughts, fires and floods are the norm. I am looking for a way to suddenly ...
6
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4answers
838 views

Can satellites decrease global warming?

An island nation has a lot of coastal territory and has become gravely concerned about the threat of global warming. They've decided to fix this by launching reflective satellites into orbit -- ...
1
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4answers
503 views

Would moving Earth around solve the rise in global temperature problem? [duplicate]

Without worrying about the other issues of global warming like rise in CO$_2$ level, hole in ozone..etc, lets assume that we're facing with rise of global temperature. And assume there's an efficient ...
3
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3answers
223 views

Could a comet cool down global tempatures? [duplicate]

In warlords I wanted Terrans to have a fad of big (synthetic) fur jackets, but I didn't want too have everyone running around in winter clothing for no good reason so the solution my mind instantly ...
5
votes
2answers
185 views

Would the melting of ice islands affect the weather across the seas?

I've studied a little about glacial melting and temperature changes in sea currents and worldwide. I couldn't find any definitive answer and since I'm no expert on this matter I'm a bit confused. The ...
3
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2answers
66 views

Opaque Solar Shield in Geosynchronous Orbit: Plausibility + Challenges of Maintaining Orbit

Suppose humans of the late 21st century or beyond began constructing a solar shield as a solution to climate change. Suppose for some reason (open to suggestions) they choose to build the shield in ...
6
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3answers
275 views

What would happen to the climate if Earth's sea-levels rose 2000m?

This is the first of possibly several posts about the following scenario, in which Earth's sea-level rises 2 km overnight, generating a world map looking like this: Question: What would be the ...
5
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1answer
138 views

What might the political climate in the United States look like in twenty or thirty years? [closed]

I wrote a speculative science fiction novel in 2014, and last week I met a copy editor who suggested that I do some digging to find out how the society in which my character would be integrated would ...
3
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2answers
247 views

What might India look like in 2070 in terms of climate change? [closed]

In terms of climate change, what are some reasonable / speculative scenarios for the Indian sub-continent in the general timespan of 2070 - 2100? Hotter patches? Flooded areas? I am basically looking ...
0
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2answers
286 views

What would happen to Earth's climate and sky if the ozone layer was completely distroyed? [closed]

It would be very interesting to have sci-fi stuff showing our planet lacking the ozone layer due to deterioration of biodiversity and pollution. I read that Earth could not have life if there wasn't ...
-3
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1answer
99 views

Could the city of Boston, Mass avoid rising sea levels by building levees? [closed]

I have seen similar proposals to deal with potential sea level rises in New York City, which would work by constructing levees around the east river and the barrier islands surrounding Staten and Long ...
1
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2answers
100 views

What are some of the global impacts of technologically converting desert biomes into grasslands? [closed]

As per the Koppen climate model, for the purposes of this question deserts are dry, non-polar climates. https://en.wikipedia.org/wiki/Desert_climate At a hypothetical time in near future, the human ...
0
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2answers
123 views

What would the consequences of a longer glacial period be for modern Earth? [closed]

How would a generally colder climate effect the growth of horse-nomad cultures out of the Eurasian Steppe? Could similar cultures have simply developed further south, or would it have put a hold on ...
1
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0answers
95 views

What would be the effect of gas giant was turned into a sun on a planet with no axial tilt [closed]

Scenario: A star system with multiple planets, in particular a habitable planet which has no axial tilt such as this, and the next planet out being a gas giant. The gas giant is ignited using a ...
6
votes
1answer
235 views

Underground cities in a Glacial Climate Transition?

My story is based on a Glacial Climate setting or an Ice Age. However the transition is gradual and humanity was given some time to adapt. The transition began in our real-world technological ...
1
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2answers
162 views

Destroying an earth-like planet with a green-house

Due to global warming, Earth has become uninhabitable. The rich left off to colonize 'New Earth' while everyone else is left behind. For whatever reason, the people left behind have survived, but out ...
1
vote
1answer
114 views

If there were giant irregular mirrors above cities that would reflect sunlight, would that heat the atmosphere and cause global warming? [closed]

Or would the heat dissipate back into space? For my world building purposes, I need it to cause global warming, I just don't really know if it would work. Maybe the cities would need to be bigger then ...
0
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1answer
118 views

How much sunlight would I need to block to stop / reverse climate change?

Using this handy dandy graph, I estimate that by the time climate change forces a response we will need to reverse 2° Celsius of heating. The method for temperature control is described in here - a ...
21
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9answers
6k views

How big would a satellite need to be to block out the sun?

I have a story idea that involves a human attempt to halt and reverse global climate change. The idea is a simple one - a satellite that partially blocks out the sun. The satellite is located at the ...
8
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4answers
488 views

What kind of natural disaster could create a permanent, global cloud cover?

“Permanent” here meaning “significant over geological timespans”, so it would have to last at least 10,000 years and produce a thick enough layer of clouds that it would cover the entire planet in an ...
1
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4answers
260 views

How to make all ice caps melt before the end of 21th century

Sorry for any bad English In order to give a reason for humanity to get out of Earth or hide in their floating city shelter, what is the best way to rise up sea level fast and furiously? I am ...
2
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3answers
343 views

Climate Change after a Sudden Drop in Emissions

Suppose we have a world that saw a sudden collapse of civilization, not so violent that humans are suddenly struggling to survive but severe enough to cause humans to revert to a mix of city-state, ...
5
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7answers
2k views

The possibility and possible backlash of a thruster large enough to move a planet

Inspired from the game "Planetary Annihilation" a Halley Delta V Engine is a engine built in the ground that is big enough to move the planet when used. This can be used for two things in my mind. War,...
-3
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1answer
117 views

Would it be possible to see large satellites in the sky through the smog in 2145? [closed]

If it's around 2145, given the current rate of climate change (and atmosphereic pollution build-up), would it be possible to see large satellites in the sky? Or would they be completely obscured by ...