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Questions tagged [climate-change]

Questions about changes of the climate system, including questions about global warming.

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3 votes
0 answers
28 views

Does the Earth's ozone layer play a role in maintaining the temperature of places like the arctic?

BGR's June 19, 2024 New study claims Starlink satellites may be killing the ozone links to Ferreira et al. (2024)'s Geophysical Research Letter Potential Ozone Depletion From Satellite Demise During ...
1 vote
0 answers
20 views

Is it possible to cool the troposphere using the stratosphere?

Because of the recent intense heat wave in India, I tried to think about possible mechanisms to mitigate such extreme heat waves. I had an idea that I'm pretty sure it's infeasible in any case, but it ...
-4 votes
0 answers
58 views

Heat domes are causing abnormally high atmosphere temperatures. Should this effect be included in the mainstream GHG theory for global warming? [closed]

A heat dome is explained as being a low-level mass of air at higher temperature, held in place in contact with the Earth's surface by other atmosphere conditions. So, it's temperature is due to "...
13 votes
5 answers
2k views

When will the Final Ice Age happen?

As the Sun's luminosity slowly rises, the Earth's surface temperature will climb. Will Earth ever be too warm to have any more glacial periods? If so, when will that be? Edit: The existing answer ...
-3 votes
2 answers
389 views

Should the increasing energy retained in the atmosphere be considered in relation to global warming?

Atmosphere Energy Heat energy is continuously being added into the atmosphere by the burning of fossil fuels. It is in the form sometimes called “sensible energy”, and is just the kinetic energy of ...
1 vote
0 answers
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Using the CMIP6 ensemble data from the Copernicus Gridded monthly climate projection dataset

I am a wildlife ecologist planning to summarize projections for global heat and drought and how it may affect endangered wildlife species to. My approach was a global study, using monthly data, ...
2 votes
1 answer
68 views

What is the role of stratospheric water vapor emissions in climate change?

Water vapor is the most significant greenhouse gas in the Earth's atmosphere. However, tropospheric water vapor has a short atmospheric half-life. Therefore, anthropogenic surface-level water vapor ...
4 votes
4 answers
3k views

What is technically wrong with Wijngaarden & Happer's paper claiming to show that CO2's contribution to surface warming is saturated?

The paper, Dependence of Earth’s Thermal Radiation on Five Most Abundant Greenhouse Gases1, has been reportedly rejected from several major journals. By analysing absorption spectra of greenhouse ...
17 votes
5 answers
3k views

Could the Paleocene–Eocene thermal maximum have been caused by intelligent life forms?

I was intrigued to learn recently of the Paleocene–Eocene thermal maximum from this blog of John Baez. For those who haven't seen, it's the sharp spike labelled "PETM" in this graph (from ...
4 votes
1 answer
738 views

3 Billion years ago, the earth was covered with Carbon Dioxide. Where did it go?

Oxygen gas began to appear on the earth surface about 2 billion years ago by photosynthesis. Carbon Dioxide was converted into carbohydrates in the process. Where did these carbohydrates go? If they ...
1 vote
1 answer
39 views

Effect of carbon dioxide on past ice ages

If anthropogenically produced carbon dioxide has prevented the earth from entering a new ice age, why were past ice ages not prevented from occuring since carbon dioxide levels were much higher in the ...
12 votes
3 answers
3k views

Have there been any studies on how vehicles directly contribute to a rising global temperature?

I've tried searching for this myself, but Google is saturated with the Greenhouse Gases angle of Rising Global Temperatures. What I'm interested in is the following: Greenhouse gases aside, to what ...
5 votes
1 answer
1k views

Do perfumes and deodorants contribute to global warming?

If perfumes and deodorants cause air pollution, does that mean they also heat the planet?
1 vote
2 answers
144 views

How do we allocate partial CO2 doublings for Empirical Climate Sensitivity?

How do we allocate partial CO2 doublings for Empirical Climate Sensitivity? I applied partial doublings on a linear basis, is this correct? Climate Threat to the Planet:Implications for Energy Policy ...
1 vote
2 answers
57 views

Extracting CO2 from the atmosphere and injecting it into fracking wells

Assuming you could extract CO2 from the atmosphere, could you inject it in fracking wells to store it? Would CO2 likely escape? What would the effect of this be on ground stability etc. and on the oil ...
11 votes
1 answer
547 views

What would happen if we could revert $\mathrm{CO}_2$ production but took it too far?

So recently, scientists managed to produce fuel basically out of thin air (water, air and sunlight). And in a discussion I had with a friend, the question came up, what would happen if you took that ...
1 vote
0 answers
17 views

CMIP6 ts versus tos for Pontential Intensity calculation

As per the title, I am interested in computing the potential intensity (PI) and wondering what the difference between surface temperature (ts) over the ocean and sea surface temperature (tos) in CMIP6 ...
3 votes
1 answer
318 views

Is there any natural phenomenon that can account for the 100 fold faster CO2 rate increase?

"Based on the best historical data that we have available CO2 is probably increasing at a rate at of least 100 times faster than at any time in the last 800,000 years." Pieter Tans lead ...
2 votes
3 answers
88 views

What are the state-of-art techniques in capturing carbon dioxide and/or converting it to oxygen and their challenges?

It seems there are multiple chemical reactions (from this question and internet in general) where $CO_2$ can be converted to $O_2$. If this is the case, can someone please explain the challenges (...
1 vote
0 answers
49 views

How the salinity of the North Atlantic is changing

The Arctic has lost 3.6 million km^2 of sea ice due to climate change. This is also referred to as freshening. Are there any studies focussing on the development of the salinity of the North Atlantic?
1 vote
0 answers
45 views

Since when are there global air temperature measurements?

I keep reading that global air temperature has been recorded since 1880, but considering that it wasn't until 1911 that Amundsen became the first person to reach the South Pole, it cannot be assumed ...
6 votes
2 answers
329 views

What caused the Carbon Dioxide Variations observed in the 800,000-year polar ice record?

I have seen several graphs showing the prehistoric temperatures and CO2 concentrations derived from ice-core data. My understanding is that CO2 and temperature correlate. I assume that Milankovich ...
3 votes
1 answer
124 views

What 18O indicators are there besides foraminifera?

It is now standard practice to use foraminifera to represent paleo 18O signatures from a marine system. However, there are some problems if you want to show 18O variations in the last 100 years using ...
9 votes
2 answers
886 views

Are cattle really contributing to global warming?

Let me be straight up. I'm a physicist, I've no doubt about climate change and the part we play in it. I had been reading about cattle being one of the alleged main causes of climate change. I get ...
2 votes
2 answers
463 views

Would covering part of Lake Mead with large sheets of bubble wrap reduce the amount of water lost to evaporation?

I have been recently thinking about how the water level of Lake Mead keeps dropping due to its high water evaporation rate brought on by recent years of historical drought conditions. The continuous ...
2 votes
2 answers
1k views

Is ocean pasture restoration a real solution to quickly mitigate climate change?

In this youtube video American entrepreneur Russ George claims that - based on research of oceanographer John Martin and some experiments he made in British Columbia - pouring mineral dust into the ...
6 votes
3 answers
4k views

Can ice caps reform if they disappear?

Excuse my ignorance. I'm under the impression that there are various types of ice at the poles, but I don't know the difference or the significance of each type, so, in terms of whatever is actually ...
4 votes
2 answers
901 views

Why is the creation of water from the combustion of hydrocarbons not listed as a cause for rising sea levels?

According to Accounting for water formation from hydrocarbon fuel combustion in life cycle analyses, water is created by burning hydrocarbon fuels. It seems like a major thing to exclude from "...
4 votes
1 answer
122 views

Can a collapse of the AMOC lead to suboxic conditions?

For a couple of years The Atlantic meridional overturning circulation AMOC has been under observation. There have been examples in the past, when sudden state changes of it lead to short term and ...
0 votes
1 answer
93 views

Controlled studies of CO2 as a greenhouse gas

Since climate change is such a big topic and the world is investing billions of dollars each year. Are there any controlled studies of CO2 as a greenhouse gas? It's quite simple: build two 3mx3mx3m ...
2 votes
6 answers
480 views

How to design an experiment to quantify back radiation from atmospheric carbon dioxide?

Based on our current knowledge of CO$_2$ and current instrumental techniques, how big would a laboratory sample of air with 400ppm of CO$_2$ need to be in order to quantify the back radiation from CO$...
2 votes
0 answers
26 views

Is increased erosion due to flooding part of a negative feedback mechanism for global warming?

I have read that alkaline rock dust added to the sea can increase algal growth and sequestration of CO2. Is this part of a natural negative feedback for global warming because a typical scenario for ...
0 votes
0 answers
28 views

Do military conflicts have tangible effects on climate change? [duplicate]

Surely wars cause emission of a huge amount of CO2, but does that have a tangible effect in the short-term? For example, can someone claim that while currently there are 2 active wars (in Ukraine and ...
-2 votes
1 answer
186 views

What portion of global warming is caused by radioactive CO2 produced from cosmic rays?

The Earth's magentic field has been weaking recently, and the sun's magnetic field has been weaking recently, and it is a known fact that when either of these magnetic fields weaken (let alone both of ...
0 votes
0 answers
38 views

Question about calculating cloud raditiave feedback by adjusted cloud radiative forcing

from https://link.springer.com/article/10.1007/s00382-022-06369-z from https://link.springer.com/article/10.1007/s00382-022-06577-7 These two formulas aim to calculate cloud radiative feedback by ...
2 votes
0 answers
45 views

Need help to understand definitions in Box 7.1 (Forcing and Response) in IPCC 2021

I'm trying to understand Box 7.1 "The Energy Budget Framework: Forcing and Response" in the IPCC 2021 document. The link is https://www.ipcc.ch/report/ar6/wg1/chapter/chapter-7/ . $N(x_{1},...
4 votes
1 answer
3k views

Which type of plant absorbs the most net carbon dioxide per year per square km?

The answer to How many trees would I have to plant to solve Global Warming? demonstrates how unviable it would be to simply plant trees to counter climate change (we'd need to plant ~60 millions km$^2$...
2 votes
0 answers
93 views

How much cooler would the Earth’s surface be if there was no contribution from radiogenic heating?

According to Earth's internal heat budget (Wikipedia) “About 50% of the Earth's internal heat originates from radioactive decay”. However, this makes up only a small portion of the Earth’s heat budget ...
2 votes
1 answer
51 views

Estimated surface average temperature rise when forest is replaced by solar panels

In some places in the world it can be observed that spots which used to be forest (or with the potential to become a forest) were changed to fields of solar panels. I've been close to solar panels on ...
4 votes
2 answers
365 views

How much does overpopulation affect the carbon dioxide concentration in the air in terms of just breathing?

I'm not talking about other artificial human activities like fossil fuels or cars or cattle farming. I meant just in terms of breathing, how much did the CO2 level of the earth increase because of the ...
1 vote
0 answers
51 views

Water on our planet, where did it come from? [closed]

Water on our planet, where did it come from? A water molecule is created when two atoms of hydrogen combine with one atom of oxygen. W The volume of all water (on our planet) is about 332.5 million ...
3 votes
1 answer
82 views

Effective Radiative Forcing of Aviation Soot: Time Period Considered

I am trying to understand how athmospheric scientists are quantifying effective radiative forcing of different aviation-related warming/cooling effects as a function of total emissions over time. For ...
3 votes
0 answers
47 views

Since the upwelling of calcium carbonate reduces surface pCO2, why is its dissolution in the CCD below the lysocline of concern?

Why is so much of the literature I run across regarding global warming concerned with precipitating $\ce{CaCO3}$ to the ocean floor? In areas of relatively lower pH, such as the eastern equatorial ...
1 vote
0 answers
59 views

Why are REGOs are so bad?

Firstly, a REGO is a Renewable Energy Guarantee of Origin. We have these in the UK, and they are probably quite self-explanatory: a windfarm (for example) generates a certain amount of kWh which are ...
1 vote
0 answers
110 views

Estimate warming caused by the current sea ice anomaly in Antarctica

I’ve read about the Ice Albedo Feedback effect on global warming. Antarctica has had a large sea ice anomaly from late 2021 until now. What is the average change in energy flux over the period 21 June ...
1 vote
0 answers
70 views

Climate change impact on the geography

Wildfires seem to be more frequent in the southern Europe, meantime as the Arctic melts, there are speculations that the Gulf Stream might collapse, would lower the temperature 10-15 degrees in Europe....
2 votes
0 answers
56 views

Why does OISST trend for this year appear to be increasingly diverging from the mean since early March?

With recent news about hottest global daily temps on record, I came across climatereanalyzer.org from the University of Maine. I ended up looking at their data for daily sea surface temperature and ...
37 votes
4 answers
3k views

How does anthropogenic heating affect global warming?

Anthropogenic-sourced greenhouse gases are commonly cited as the main source for human-caused climate change. However, something that I never see discussed is the actual heat produced by human ...
3 votes
1 answer
94 views

Change in thermohaline circulation due to climate change

The melting of the North Polar ice masses removes a driving factor from the thermohaline circulation, known as the Gulf Stream in the North Atlantic. I wonder how much the thermohaline circulation has ...
5 votes
1 answer
570 views

How is this global temperature chart compiled?

In this BBC News article, there is a chart labelled "Hottest day on record globally - Daily average air temperature, 1940-2023". It shows temperatures that are higher in summer and lower in ...

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