Questions tagged [climate-change]

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

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1 vote
2 answers
141 views

Forest fuel biochar burial

Record fires are blazing in the west coast, huge even compared to California's notorious summers. Dead plants and debris are crucial to get a fire started. This debris could be collected, carbonized, ...
6 votes
5 answers
156 views

Does global warming inhibit transport of moisture?

This northern summer, 2021, there were wildfires in Southern Europe and floods in Germany nearly at same time, also, floods and wildfires in different parts of Turkey, and floods in Far East of Russia ...
8 votes
3 answers
478 views

How is climate change today different than the climate change that ended the ice age(s)?

Someone I know posted a question about climate change that I do not know how to answer. While I do believe (for lack of better word) in climate change, I do not know how to answer this persons ...
7 votes
1 answer
359 views

Why is the Northern Hemisphere warming faster than the Southern Hemisphere?

Hi I just found the NOAA table. It clearly shows that the N. hemisphere has warmed much more than the southern hemisphere since 1880! https://www.ncei.noaa.gov/access/monitoring/monthly-report/global/...
-1 votes
1 answer
70 views

Global warming caused by direct energy release [duplicate]

We know that global warming has a component caused by greenhouse gases, but I was wondering how much of the heat is caused directly by burning fuel. I made this classification to explain what i am ...
2 votes
1 answer
89 views

Why does this resource give no insolation change since Roman times?

This grapher states that the Sun energy output in watts/m2 has not changed in 2200 years (0.0022 Ma ago until 0 Ma ago) . Why is there an invariance as time approaches glacial minimum? Years Ago ...
5 votes
0 answers
87 views

Simulating snow melt inundation in urban areas

I am trying to understand how melt water from snow in urban setting gets routed. I understand that for routing rain water, one can create grid and then determine the flow direction for each cell by ...
2 votes
1 answer
94 views

How dangerous is it that no global warming prevention measures are taken? What is the maximal warming, the limit?

This image in wikipedia shows that the temperature is going to increase 4.1-4.8 °C in 2100 if no policies are taken. How much raise in temperature can be reached in later times? Is there some ...
3 votes
1 answer
541 views

What are the U.S. government's plans for dealing with the event of Lake Mead drying up in the near future?

I watched a documentary this morning about how the water level on Lake Mead keeps dropping due to a historical 20+ year long drought. The lake's water level has been dropping due to a decrease in ...
0 votes
0 answers
37 views

Does climate change generate more cold waves?

I answered to this question some time ago: Who are winners from the global warming? Are there any? The user asked if Russia would benefit from climate change. I found a paper that asserts: Our ...
11 votes
5 answers
6k views

Carbon dioxide on Mars, Venus and Earth

Earth's atmosphere is 0.038% carbon dioxide. Mars's atmosphere is 95.3% carbon dioxide. Venus's atmosphere is 96.5% carbon dioxide. If Earth's climate is controlled by CO2, then why is Mars so cold ...
11 votes
3 answers
3k views

How were the sea levels around western Europe during the Medieval Warm Period?

The Medieval Warm Period (MWP) or Medieval Climatic Anomaly was a time from about 950 to 1250 when climate was warmer than in the timespans immediately before and after. My question is if this ...
8 votes
2 answers
5k views

Would the US East Coast rise if everyone living there moved away?

I watched a documentary about research on the coasts of Greenland where the sea level has fallen. According to the research, this is because a lot of the glaciers have melted, resulting in less weight ...
0 votes
0 answers
80 views

What consequences of the global climate change are expected in the next 50 years?

It is known, that due to global warming, the average temperature on Earth over the past 100 years has increased by 1.2 degrees. At the same time, I heard that earlier the temperature of the Earth was ...
1 vote
1 answer
510 views

The Medieval Climatic Anomaly

Trying to understand this question, posted to me by a lecturer at University: "The Medieval Climatic Anomaly was distinctive in terms of the prevailing climates and forcing mechanisms operating ...
1 vote
1 answer
46 views

Shorter Showers Effect on Environment

I was told that if I take a shorter shower it will impact the environment positively. That extra water saved could be used for struggling countries or other uses. As a result, I should take a 5min ...
0 votes
0 answers
39 views

Climate Change Solutions - Pros and Cons

I am beginning my research on climate change and am not familiar with all of the problems that can occur. At the same time, I know there are potential solutions to react to climate change. For example,...
19 votes
3 answers
2k views

Simple Climate Models that Predict Climate Change

I have a physics/maths background, and to me the most convincing evidence of a scientific fact is often a very simple model that gives reasonable results. A simplified model, which you can fully ...
2 votes
2 answers
510 views

Looking for the mathematics so I can run climate change simulations

Sorry for the stupid question, but I have been unable to answer it even after wasting time googleing for a while... I know there are several climate-changes scenarios, and I know the several climatic ...
2 votes
1 answer
96 views

Why is dependence of radiation forcing on CO2 concentration logarithmic?

As a newbie on climate science and meteorology I'm trying to understand the almost logarithmic behavior of CO2 concentration on radiation forcing $$F(c) = A \cdot \ln \frac{c}{c_0}$$ and why there is ...
2 votes
0 answers
47 views

How can a single layer atmospheric model for the greenhouse effect be consistent with adiabatic temperature gradient and optical depth considerations?

I'm completely lost...In an elementary course on meteorology, we recently learned how to explain the greenhouse effect in terms of a simple single-layer atmosphere model. Based on the image below ...
7 votes
2 answers
197 views

How much carbon dioxide does war release?

I'm wondering how much damage the Russian invasion of Ukraine has done to the climate, in particular how many tons of carbon has been released into the atmosphere. I'd be surprised if it isn't ...
4 votes
2 answers
115 views

How does water vapor cool the troposphere?

I have read about the Fixed Anvil Temperature (FAT) hypothesis and wonder why radiative cooling decreases with decreasing water vapor mixing ratio. Doesn't this stand in contrast with the fact, that ...
3 votes
1 answer
354 views

Why doesn't Earth absorb our carbon emissions?

If we look at the carbon cycle, we see that man-made carbon emission only account for a tiny fraction of all $\text{CO}_2$ emissions. However, we see a steady rise in atmospheric $\text{CO}_2$-levels....
1 vote
0 answers
24 views

Convert methane emissions calculated with GWP100 to GWP20

Given a figure of 1 tonne of CO2e methane emissions, where the CO2e figure is calculated using the 100-year global warming potential, is it possible to do a straight conversion back to tonnes of ...
11 votes
5 answers
8k views

Why had climate change not been proven beyond doubt for so long?

I just read the IPCC's Fourth Assessment Report and noticed that this is the first (or first very significant) report to state that climate change exists and can no longer be scientifically disproved. ...
4 votes
6 answers
538 views

Who are winners from the global warming? Are there any?

As a person living in Russia, I always had mixed feelings when hearing appeals to fight global warming. On the one hand, I completely understand that it is going to be a disaster for lots of people. ...
6 votes
4 answers
5k views

Could pumping ocean water into desert areas help reduce sea level rise?

I have been reading the discussion about pumping sea water into the desert for purposes of irrigation and changing the dry climate of that area, but what about to just purely offset the rising sea ...
2 votes
0 answers
42 views

How can carbon flows be modeled mathematically?

In this video Earth's carbon cycle is investigated with a bit of maths. https://www.youtube.com/watch?v=aIOrF0-R33o It is in German, but the idea behind I can describe easily: There are reservoirs of ...
1 vote
0 answers
21 views

IPCC AR6 References

Does the IPCC publish its references (i.e. the references used in the report, not citations for the reports or chapters themselves) beyond what is in the PDFs of the reports themselves? I'm looking ...
2 votes
1 answer
61 views

How to simulate rainfall for a 1 in 100 year storm event?

I have information about total rainfall during a 24-hour, 1 in 100-year storm event for a location. (source: https://hdsc.nws.noaa.gov/hdsc/pfds/index.html). I would like to use this information and ...
0 votes
1 answer
78 views

How to demonstrate the warming effect of CO2 at home?

Is there any simple experiment which can be done to show empirical evidence that carbon dioxide causes the greenhouse effect? I'm imagining something simple like two sealed fish tanks, one filled with ...
8 votes
1 answer
270 views

What exactly is "Land-Use Change and Forestry"?

What exactly is "Land-Use Change and Forestry" and why is it sometimes hugely positive (Indonesia) but sometimes hugely negative (China)? Isn't it supposed to be a type of source, not sink (...
0 votes
5 answers
1k views

Can anyone explain the reason why CO$_2$ increases global temperatures (not the simplistic greenhouse analogy provided for public consumption)?

The greenhouse effect analogy of global warming is that atmospheric carbon dioxide CO$_2$ absorbs some of the infrared radiation emitted by the Earth, and redirects a portion of that radiation back ...
35 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 ...
1 vote
0 answers
32 views

Where Do I FInd IPCC RCP Global Mean Temperature Predictions?

We have written a free textbook at (http://climate-change.world). Its main focus is on the social science side of changing emissions. We are not atmospheric scientists, so all we want to do is to ...
2 votes
1 answer
56 views

How does dredging help the rivers that have gone dry?

How does dredging help the rivers that have gone dry? If you dig deeper, that small, and fixed, amount of water is just going to go lower, isn't it? That just what my layman's logic says, at least. ...
2 votes
1 answer
53 views

What exactly does point-of-no-return for carbon emissions mean?

I think I have heard that if the carbon emission raises a small amount above the current, it would be "point of no return". I heard it a long time ago, so I just searched Google and the top ...
0 votes
1 answer
75 views

Aerosol injections to manage European heatwaves?

The heatwave that hit Europe in July was not only highly unpleasant (40°C), but has been predicted to be an exceptionally onerous medical, agricultural and economic burden. As someone outside of the ...
0 votes
1 answer
51 views

How do melting glaciers dry rivers?

How do melting glaciers dry rivers? Unless there's less precipitation during winter, I don't see how it affects the volume of water of the rivers that glaciers feed into. If it's cold, water ...
2 votes
0 answers
49 views

How is sea level rise due to a glacier melting calculated?

There's news going around (e.g. link) that the melting of the Thwaites glacier may cause sea levels to rise by 10 feet. Is that true and not exaggerated? How is the calculation made? They said the ...
2 votes
0 answers
21 views

What was the physical environment like in the Fertile Cresent between 10k BCE and 1 CE?

Mesopotamia was part of the Fertile Crescent, and Assur was an Assyrian city in Mesopotamia for roughly 1500 years, but it looks like this now (barely any vegetation, pure desert): What was the ...
2 votes
2 answers
62 views

Is there a relationship between pressure drop and sea level rise?

Climate Fresk is a NGO which publishes a card game aimed at educating people about climate change. Card 33 (page 16 of this pdf file) reads (emphasis mine): Cyclones and atmospheric waves bring wind, ...
0 votes
0 answers
36 views

Why Climate Change (CC) or Global Warming (GW) does not take into account the actual heat from human combustion processes? [duplicate]

Are there any papers or calculations of how much we could be warming the atmosphere by these processes?. Please also share any clues to find those numbers if you have. The volume of a car engine ...
1 vote
2 answers
222 views

Does visible light warm the earth?

I read that most radiation reaching us from the sun is visible light. Yet, heat can only be radiated away from earth as infrared. Is this correct? If so, why can the oceans (say) absorb heat from ...
2 votes
0 answers
74 views

What's the effect of space launches on climate?

Do space launches warm or cool the surface temperature (admittedly, for a little bit)? This BBC article presents it as an emerging climate problem but also says If the amount of black carbon expelled ...
3 votes
1 answer
258 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 ...
3 votes
0 answers
79 views

Change in vapour pressure due to climate change

I was just wondering how much the vapour pressure has changed due to climate change. Because with changing temperatures, the vapour pressure also changes; this is described by the Clausius-Clapeyron ...
11 votes
3 answers
1k views

Is increase in atmospheric $\mathrm{CO}_2$ concentration affecting Earth's atmospheric pressure?

It's well known that the $\mathrm{CO}_2$ levels around the world are increasing, leading to an increase in overall surface temperature, etc. But I'm wondering, are these gases (or the effects from ...
1 vote
1 answer
105 views

Global change or climate change [closed]

I was just wondering whether it wouldn't make more sense to describe climate change as global change. After all, it is not only the air temperature that has been changing in recent years, but also ice ...

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