Questions tagged [climate-change]

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

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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
64 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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281 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 ...
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1answer
82 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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1answer
75 views

If 5 billion small devices where released to the atmosphere to convert CO2 to O2 what could go wrong? [closed]

Reading this question How many trees would I have to plant to solve Global Warming? was a small inspiration. If 5 billion small devices where released to the atmosphere to convert CO2 to O2 what could ...
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3answers
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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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5answers
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How many trees would I have to plant to solve Global Warming?

According to NASA, causes of the Earth's greenhouse effect include water vapor, carbon dioxide, methane, nitrous oxide, and CFCs. Carbon dioxide gets the most press, and NASA's page says: Carbon ...
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1answer
60 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
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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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2answers
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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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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
34 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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It is possible to reduce global sea level via filling empty lowlands with ocean water?

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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1answer
122 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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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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1answer
87 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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45 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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6answers
538 views

Any historical examples of destructive climate warming?

Summation: Local cooling climate changes, since the last ice age seem relatively common and all seem to cause significant harm to human population. But I can't find instances of the reverse, warming ...
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2answers
51 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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70 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
204 views

Could we sequester CO$_2$ by dumping forests in deep oceans?

We know that trees are the most efficient "tool" we have to get CO$_2$ out of the air, but the problem is that most of their fixated CO$_2$ will naturally reenter the carbon cycle through ...
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2answers
928 views

Will global warming lead to agriculture in the Arctic?

From what I understand, global warming will make growing food a lot harder in areas like the American Midwest because temperatures will become too high for most crops. At the same time, Arctic (and ...
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1answer
90 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
47 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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Trying to calculate the percentage of carbon emissions that is offset by 45,000 acres?

In my problem there is an average net ecosystem production rate of: 0.25 kg$^o$C/m2/yr Am asked: a. What percentage of 140,000 tons/yr would be offset from reforesting 45,000 acres? b. With ...
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How will climate change affect the extent of the Sahara Desert?

Will it increase the size of it? (perhaps by increasing the extent of the Hadley Cells)?
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1answer
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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
106 views

Why is starting a minor nuclear winter considered an implausible way to combat global warming?

At a superficial level, it seems like we could exploit nuclear winter (the long-term aftermath of a nuclear war) to counterbalance climate change via global warming, and there are a few articles about ...
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2answers
90 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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71 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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How do I calculate Per capita $\ce{CO2}$ emissions?

I need to find the per capita $\ce{CO2}$ emissions for Canada in 2010 (expressed in kg/day). I know that Canada had $\ce{CO2}$ emissions of 0.55 (Gt) and a population of 34 million in 2010. I am just ...
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8answers
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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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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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149 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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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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2answers
208 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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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
57 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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4answers
190 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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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
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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
111 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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1answer
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Are we going to enter a mini ice age by 2030?

According to this article, a mini ice age could hit Earth by 2030 Mini Ice Age could hit Earth by 2030 and according to this video NASA admits mini ice age coming faster than anticipated. ...
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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
73 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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28 views

Raised Dew Point from global warming: will cool weather burning off (for fuel load reduction) get harder?

Dew appears to be a factor in fire behavior and management, slowing and extinguishing fires in cool conditions. Higher temperatures mean less dew. Given the importance of fuel reduction fires during ...
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1answer
70 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
72 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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1answer
2k views

What would it be like to live in an ice age?

If you were born in the most recent ice age, how different would your life be compared to how you live it today? Furthermore, if humans currently lived in an ice age, how would it affect life today?

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