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Questions tagged [climate-change]

For questions about planetary climate change.

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86 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 ...
5
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2answers
140 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. ...
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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 ...
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3answers
220 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 ...
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3answers
102 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 '...
7
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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
174 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 ...
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 ...
5
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2answers
262 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 ...
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3answers
200 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
193 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
168 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
134 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
765 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 -- ...
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4answers
470 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
197 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 ...
21
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8answers
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 ...
5
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2answers
169 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
62 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 ...
5
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3answers
199 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
126 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
193 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 ...
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3answers
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Is freeze ray possible?

Set in distant future in order to reverse global warming caused by the depletion of ozone layer, the world no longer release CFC gases into the atmosphere and also vows to repair ice cap in Antarctica....
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2answers
195 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 ...
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1answer
82 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 ...
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2answers
84 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
99 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 ...
3
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3answers
156 views

What is the quickest way to perfect global warming?

The second terrestrial planet orbiting the Sun is shrouded in greenhouse gases, the entire surface of Venus is always scorching hot due to the high concentration of atmospheric carbon dioxide which ...
1
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0answers
91 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
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1answer
226 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 ...
13
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4answers
1k views

How many “years without a summer” can society survive?

In 1815 Mount Tambora erupted throwing so much dust into the atmosphere that the year became known as "the year without a summer". *There were a few other mitigating factors but Tambora is thought to ...
1
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2answers
159 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 ...
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1answer
106 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 ...
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6answers
11k views

What if a portal is opened from the Mariana trench to the Sahara desert?

The first portal is placed at bottom-most point of the Mariana trench (the deepest part of any ocean, located in the western Pacific Ocean) and the second is placed in the Sahara desert in Africa at ...
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1answer
105 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 ...
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4answers
248 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 ...
8
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4answers
461 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 ...
3
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3answers
238 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,...
6
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2answers
209 views

Antarctic Climate on Greenhouse Earth

Scenario: Say we have a massive release of greenhouse gases into Earth's atmosphere, however much for the ocean around Antarctica to get just warm enough for hurricanes to form during the summer (28.5 ...
2
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4answers
282 views

Is it possible to have (near future) satellites that appear to rise and set like the sun and moon?

And if I wanted them to appear about 10 times the size of the sun and moon, would this be possible? Should they lie inside LEO or beyond it? I would like their orbit to be considerably closer than ...
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1answer
113 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 ...
34
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17answers
11k views

Dropping ice in the ocean to stop global warming

In the TV show Futurama, an in-show infomercial mentions that Earthicans started dropping giant ice cubes in the ocean to slow down global warming. Now, Futurama is a show where science is a mixed bag:...
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6answers
3k views

What measures might an ancient civilization take to protect itself from extreme heat?

An ancient human like civilization exists on a planet like our own but warmer, with more deserts and smaller oceans. Climate change is forcing the daytime temperature slowly upwards. What measures ...
8
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1answer
126 views

Maintain atmosphere on moon using global warming

So, a neat thing, depending on how you look at it, about greenhouse gases is that while it's causing a raise in temperature near the surface it actually makes the upper parts of the atmosphere ...
6
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1answer
192 views

Could an earthquake alter weather over the long term, and therefore climate?

I live in Cape Town, South Africa where it is a very real possibility that not a single drop of water will be left in our dams come March 2018. THIS is a news article that suggests that at a ...
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3answers
665 views

Do hurricanes reduce the thermal energy of the water they pass over, and if so by how much? [closed]

This question suggests a theoretical possibility that hurricanes may be disrupted by removing heat from the system. My question concerns the natural passage of a hurricane. Ocean water is warmer ...
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6answers
525 views

At what point in climate change do we reach the Tipping Point?

Assuming we have a world at the same stage in global warming as the Earth, with all other properties similar (population, carbon emissions, general climate, orbit, etc.) How long will it be until the ...
0
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1answer
170 views

What sort of animals would inhabit my world?

This world takes place in the remains of the Eastern United States, devastated by 3000 years of neglect and climate change. The Mississipi river is pretty much a gulf now, which has caused everything ...
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3answers
510 views

What kind of Ice Age would cause an apocalypse?

It's 2070, global warming is a terrifying reality. Coastal cities such as New York and Shanghai has already fallen to rising sea levels and extreme weather. In an effort to stem and perhaps counteract ...