Questions tagged [climate-change]

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

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1answer
26 views

How do geologists measure green house gass emmissions from large regions

I read here that volcanoes release about "0.6 billion metric tons of carbon dioxide per year". I wonder though, how scientists can estimate the emissions from large regions with geological ...
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1answer
115 views

Why is it that "With higher CO2, the dry gets drier and the wet gets wetter"?

The Phys.org article CO2 dip may have helped dinosaurs walk from South America to Greenland quotes Dennis Kent, "adjunct research scientist at Columbia University's Lamont-Doherty Earth ...
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3answers
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Is a hotter climate making trees grow faster and have lighter wood?

I started thinking about this after seeing several articles about falling trees, in particular a few articles about very large trees falling in Los Angeles and New York City. Plus, just thinking about ...
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2answers
105 views

Why has the Earth's average sea level risen 'only' by nine inches after one degree C increase in temperature?

I am only doing gross calculations here, but... If the Earth has warmed by about one degree Celsius in the last century or so, and the thermal expansion coefficient of water is about .0002085, then ...
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1answer
73 views

How to measure global temperature?

people always talk about global temperature (such as the global temperature goal of 1,5 K) - but how is this value achieved? It seems to me that it clearly depends on where the measuring stations are, ...
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2answers
155 views

What are the evidences that the earth climate is getting warmer?

Someone, who does not believe climate change asked me today -- How is it possible for us to conclude that the past five years are the hottest five years since record begun, since There are only a ...
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2answers
57 views

Would climate change result in an increase in seismic activities?

Would climate change result in an increase in seismic activities? I can see two potential forces acting: Temperature dilation of the Earth's surface. A change in the distribution of water mass, fewer ...
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108 views

Is there scientific consensus on the existence of the iris effect

Question: Is there scientific consensus on the existence of the Iris Effect and whether it is a positive or negative feedback mechanism? If so, can you refer to a recent publication? Background: In ...
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1answer
42 views

What potential geoengineering technologies could help a country "achieve its Paris (agreement) targets"?

CNN's China to expand weather modification program to cover area larger than India ends with the following sentence: "While China has not yet shown signs of 'unilaterally' deploying ...
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1answer
101 views

Climate change impact / risk assessment

I work for a local council in the UK. We want to include climate change as a mandatory consideration in all of our decision making. This would require project managers to look at the risk (what ...
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2answers
79 views

How much wind power is there roughly in Britain and its surrounding?

Given the prominence of the climate crisis, it's important to get some estimates of how much wind power is available in Britain as part of a renewably energised future. Q. What is yearly average of ...
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1answer
84 views

It is possible to reduce global sea level via filling empty lowlands with ocean water? [duplicate]

There are empty lowlands in Australia and Iran like Dasht-e Lut. If we fill these lands with ocean water then could we reduce the global sea level and save coastal cities like venice?
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150 views

What effect does climate change have on the Earth's rotation?

I recently read a blog entry from a leap-second expert explaining that in near term (i.e. last 3 years) the Earth has been spinning ever so slightly faster, delaying the need to insert a leap-second (...
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1answer
48 views

How far would average sea level rise from a 25% increase in total ocean volume?

What amount of average sea level rise (in meters above 2020 levels) would be associated with a 25% increase in total ocean volume? The reason I ask is because of this study that indicates Earth has ...
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47 views

How would you predict the future climate with only 7 years of interest?

In my specific case, I have worked with a data set from 2001 to 2018 which had to be split up in 2012 due to major updates in the data. Therefore, I am now dealing with a data set of 12 years (2001 to ...
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1answer
566 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$^2$...
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2answers
59 views

What part does methane play in the process of producing biogas?

I should point out first that I don't know the first thing about environmental science, I study mathematics, and the reason I am asking this question is because I want to understand the processes ...
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3answers
86 views

To what degree does historical measurement inaccuracies contribute to climate change models?

Often the graphs depicting the earth's historical temperature, the time axis extends well over couple of centuries. Also there are few that extends over thousands of years. I wonder to what degree the ...
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1answer
97 views

Will global warming expand the tropical zone

It is widely known (to the general audience, I'm not a climatologist) that global warming will let the desert climates migrate further away from the equator towards the poles, such that the South of ...
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0answers
48 views

Has the research into the apparent "Pause" in GMSTs produced a substantially better explanation?

Zeke Hausfather tweets Just six years ago many in the scientific community were obsessing over the apparent "pause" or "hiatus" in surface temperatures. It famously made it into ...
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2answers
122 views

Would the climate still rise when we reduce our carbon footprint down to zero?

Every electrical device consumes electric energy and almost every one of them I can think of produces heat as a byproduct. This also applies on every kind of machine powered vehicle. Even our bodies ...
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2answers
150 views

IPCC digital references

I'm tidying my citations for my thesis, and I'm facing the task of sorting out the references for the IPCC reports (all of which have very long lists of authors). Does anybody know where there are any ...
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1answer
54 views

How much of the Earth's surface was covered with water during the Mesozoic?

When the Earth was at its warmest, and there were no ice caps at all, not even during the winter, and thermal expansion meant a certain amount of water took up more space, what ratio of Earth's ...
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1answer
133 views

Has irreversible global warming already begun? [duplicate]

Climate is a high order nonlinear dynamic system and as such: is complex to study is not controllable via linear input as in we pollute less -> temperature drops...
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2answers
77 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, ...
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0answers
79 views

Dynamic of glacier retreat? (here: in Greenland)

During the last years I have taken many pictures of obviously retreating glaciers and empty moraines in Greenland - just like this one. Looks devastating, actually. In my understanding, the current ...
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8answers
3k views

Could an icy/extremely-cold asteroid/comet ever strike and cool the Earth?

This is obviously an imaginary question, but it seems like something computable (which I don't have the mathematical ability to do so unfortunately). P.S. I do not have in-depth knowledge about comet/...
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0answers
40 views

Are events like the Siberian heat wave factored into models of sea ice decline?

I've been looking at a lot of charts of Arctic Sea Ice lately, wondering when it will be gone, and whether the more extreme predictions are credible. When scientists come up with a chart that points ...
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47 views

South Georgia Island and Settlement

I know there were settlements in South Georgia in the past, but they were all abandoned. Is there any environmental reason why a new settlement could not be made? Especially with global warming, the ...
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62 views

Thunderstorm Frequency Depending on the Year [closed]

Why is it that some years have significantly more thunderstorms than others while other years have significantly less? For example, in 2008, there were 15 thunderstorm days in Asheville but above 40 ...
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3answers
64 views

Book Introduction to Climate Change

The question might be in an opinion-based grey zone. If it is, I apologize. My wife and I want to get informed about climate change. We want to read a book (no online course etc.) and it should be ...
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2answers
241 views

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

https://iopscience.iop.org/article/10.1088/1748-9326/aa8390 According to this paper, water is created by burning hydrocarbon fuels. It seems like a major thing to exclude from "reasons the sea ...
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4answers
191 views

Review of calculation of CO$_2$ contribution to warming

In a Swedish Facebook group for "climate change skeptics" Erik Larsen has shared his calculation of how big part of temperature change can be attributed to human emissions of carbon dioxide. ...
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2answers
164 views

Will life still be sustainable on earth when solar eclipses stop?

Estimates put the last solar eclipse at 600 million years. The question then becomes how much time is left on Earth? Stephen Hawking believes we have less then a 100 years left on Earth but that ...
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3answers
130 views

Using Enhanced Rock Weathering in the Sahel Region of Africa

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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1answer
114 views

How does the act of producing animal feed from the leftovers of a process result in a negative carbon footprint? [closed]

According to this source, it is claimed that (emphasis is mine) At Arbikie Distillery in Angus, scientists claim to have developed the world's first "climate positive" gin. By using garden ...
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0answers
71 views

Why don't they use balloons in ocean as battery? [closed]

We need more batteries, to store renewable. But why don't they just pull down big balloons in the ocean and let them go up when they need the power?
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1answer
86 views

Doesn't increased human activity add to heating the atmosphere directly?

My question relates to the fact that 1- the human population is continually increasing, and 2- everybody is constantly 'doing more stuff' (or causing more to be done). So doesn't 'more people doing ...
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1answer
74 views

Is there any animation to demonstrate if the sea level rise up?

I found a very cool video here: Draining Earth's oceans, revealing the two-thirds of Earth's surface we don't get to see https://www.youtube.com/watch?v=-uOwv_Krqk8&feature=emb_logo However, I ...
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0answers
153 views

How would I simulate the effects of the Antarctic ice sheet being deleted on Earth's climate?

This is a follow-up to my question If its ice sheet were removed under modern atmospheric conditions, what climatic and ice-sheet equilibrium would be re-established over Antarctica?. As it has ...
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0answers
151 views

Providing Edgar emission using prep_chem_source for tracers (CO2-CH4)

I am working on CO2 and CH4 by WRF-CHEM, for providing my anthropogenic emission from Edgar data base, I'm going to use the Prep_chem_source App. I would like to use Edgar data emission (as my ...
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3answers
69 views

Has recent drop in airline flights over the US had a measurable warming effect as was found after 9/11?

I recall that after 9/11, when all US flights were canceled, there was a statistically detectable bump in average temperature. Something about jet contrails disappearing for 4 days. Has anything like ...
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0answers
30 views

Correlation of Global Stratospheric AOD with Global Mean Temperature Anomaly

I'm trying to understand at a high level the relationship of aerosols to the global temperature and I'm new to these concepts. I have Stratoshperic mean global AOD data from: https://data.giss.nasa....
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69 views

What is the radiative forcing change associated with the Chinese 2020 COVID lockdown, and how does this affect the circulation?

The lockdown imposed in China and other countries in response to the COVID 19 pandemic has resulted in a dramatic change in air quality. Factories and transport systems have shut or continue at ...
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1answer
80 views

Is lower tropospheric temperature relevant to measure global warming?

So according to this, Global temperature update Last month, the lower tropospheric temperature dropped 0.28 $\sf^\circ$C from February to March, which seems like a huge drop even if it's due to ...
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2answers
200 views

USA and UK government report on plane emissions: 200% difference... which is right?

The report's respective ratio of 1 passenger car vs one long haul plane are 40% versus 110%: Image 1 (DEFRA): car = 171 plane = 195 (110%) Image 2 (EPA): car = 4096 plane = 1760 (40%) If the ...
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2answers
280 views

How has the increase in global CO2 been attributed to an anthropogenic cause?

How has the increase in global CO2 been attributed to an anthropogenic cause? It would seem to me that this could be definitively determined on the basis of placing gas spectrometers on the exhausts ...
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1answer
116 views

Would pollution really take a lot of years to disappear from the atmosphere once people stop producing them?

From a comment in another question here, Oh, and a third factor: the added atmospheric CO2 does not magically go away once all the fossil fuels are burned. It will stay in the atmosphere for ...
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2answers
168 views

How do the slow and fast carbon cycles influence climate change?

I understand that the slow and fast carbon cycles are involved in the transport and storing of carbon, but how much of an influence do each of these cycles have on climate change, and how?
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1answer
6k views

Debunking scientific paper "Has global warming already arrived?"

I read the IPCC reports, I know global warming is happening and is man-made. But as any skeptic should do periodically, I went to a few climate deniers websites and stumbled upon this peer-reviewed ...

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