Questions tagged [climate-change]
Questions about changes of the climate system, including questions about global warming.
561
questions
4
votes
1answer
218 views
Understood cause of sea level rise between 1850 and 1950
This question is based on the following graph from a 2018 report by J. Curry.
(I haven't found any peer-review of the report itself so I can't vouch for the validity of its claims, but that's not the ...
2
votes
0answers
50 views
Are there more meteorological catastrophic events due to climate change?
I was told by a sedimentologist there is no evidence of more climatic catastrophic events at the geological register previous to Pleistocene, when climate was warmer.
My question is if meteorologists ...
3
votes
1answer
127 views
Is there scientific evidence connecting the current climate in India with global warming?
Experts say up to 40 % of India might witness drought this year.
Is there scientific evidence that this is due to the global warming and climate changes?
5
votes
1answer
219 views
What happens when the North and South poles flip?
How long does it take the magnetic field to move once the poles start to flip?
What environmentally would change? Does the core of the Earth flip?
The magnetic poles are moving now. When will it ...
0
votes
0answers
208 views
Milankovitch cycles and what?
Observe the vertical green lines in this diagram:
Those events shows when temperature starts to sink when radiance is at top or even before that. If there was a simple connection between radiance and ...
0
votes
1answer
53 views
Yearly changes of solar irradiation and atmospheric feedback
I think I understand the mechanism of water vapor feedback in climate change pretty well: a (theoretical) temperature increase due to some isolated factor (e.g. increase in $CO_2$ concentration) ...
1
vote
2answers
208 views
What could cause a turn from global warming to global cooling?
Except a hypothesized orbital forcing! Ice cores shows that there are several irregular sharp temperature peaks in between of the big 100,000 years glaciations. What could cause those peaks?
Almost ...
2
votes
3answers
146 views
Looking for counter-arguments concerning the melting of glaciers in the alps in the context of global warming
I've recently listend to a talk of Prof. Gernot Patzelt, Austrian Geographer and High Altitude Mountain Researcher. In this talk he describes that scientists find rests of trees and moorland apearing ...
1
vote
1answer
70 views
What would be the extent of the feedback on climate of unattended deaths event?
Being given that decaying corpses will stop emitting digestive metane, but would release huge amount of methane during their decaying process, I was wondering if this could be considered among the ...
0
votes
0answers
62 views
Can extratropical cyclones force global cooling?
We are living in a historical period of global warming since about 20,000 years ago. This global warming period is one of about ten in human history. Those periods may very well be forced to start by ...
0
votes
1answer
90 views
Which are the mechanisms of the correlation between atmospheric carbon dioxid and global warming/cooling?
In the end of glacial periods there seems to be an increasing release of carbon dioxide as the global warming increase and at the end of these global warming periods the content of carbon dioxide in ...
3
votes
4answers
183 views
Total CO2 is not constant?
I've got a friend who is a climate change sceptic.
He argues that because all the CO2 in fossil fuels originally came from the earth's atmosphere. Then there can't be a problem releasing the CO2 ...
2
votes
0answers
105 views
Can CO2 / greenhouse gas levels override the effects of milankovich cycles?
I understand that we are, in all likelihood, towards the end of an interglacial period (the holocene). What I'd like to know is, what has a stronger effect on global temperatures - the low point of ...
2
votes
0answers
23 views
Sequestration of NO and NO2 Gasses into Soil
The university I'm a student at has been looking into Anaerobic digestion to reduce the environmental impact of the large amount of post-consumer food waste generated on campus. While this project has ...
3
votes
1answer
208 views
Which greenhouse gas has the most influence over global warming?
Carbon dioxide is the gas everyone talks about because of how much we emit, but it is the most influential greenhouse gas ? I know there are a lot of other gasses are way more potent to retain heat ...
4
votes
1answer
176 views
3 Billion years ago, the earth is 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 ...
3
votes
1answer
240 views
How much energy would be required to actively reduce the temperature of the oceans of Earth by 1℃?
Is there a way to calculate the energy required to reduce the heat of oceans?
Am I wrong in thinking it is not as simple as reversing the calculation for specific heat of sea water?
2
votes
0answers
26 views
Is there any downscaled income data for representative concentrations pathways?
I know that downscaled income data existed for The Special Report on Emissions Scenarios (SRES) Scenarios for IPCC's climate change scenarios. (http://ciesin.columbia.edu/datasets/downscaled/)
For ...
3
votes
1answer
1k views
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.
...
4
votes
1answer
210 views
Is "Carbon Neutral" (roughly) 5 Gt CO₂ equivalent?
One key target set out by the IPCC is to be carbon neutral by 2050. That is, the gross green house gas emissions of Humans is less than the carbon absorbed. I'm struggling to find a good source for ...
4
votes
2answers
169 views
Equations for Milankovitch Factors?
Are there equations for the radiative forcings of the three Milankovitch factors at any given time? Or a database of values?
3
votes
1answer
198 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....
0
votes
2answers
17k views
What are the farthest Time Zone locations? [closed]
What place in the world has the farthest time zone? I heard it was Kiribati but then I found that Apia (Samoa) is further. So, is there anyplace that is the farthest in time than these two? What about ...
10
votes
1answer
198 views
About the actual radiative impact of greenhouse gas emission over time
Say we will emit a certain amount of greenhouse gas over the next 50 years (e.g. 100 billion tons CO2-eq in total). What would happen if I implement a certain GHG mitigation effort to cut the same ...
4
votes
0answers
111 views
How temperature anomaly are measured
Temperature Anomaly is the measure used to show that the earth is warming. The formula for temperature anomaly involves in the subtraction of average temperature measurement over 30 years considered ...
4
votes
0answers
88 views
Biomes that existed during the Paleocene-Eocene Thermal Max (PETM)
I understand that you could fill multiple books with descriptions of the PETM and the mechanisms that incited the event. I have always wondered what regions of the world were covered in what types of ...
3
votes
1answer
98 views
Can spraying sulphate particulates in the upper atmosphere to lower Earth's temperature have side effects?
According to Geoengineering treatment stratospheric aerosol injection climate change study
Planes spraying tiny sulphate particulates into the lower
stratosphere, around 60,000 feet up. The idea ...
1
vote
0answers
24 views
How does planned cattle grazing compare with other methods (like carbon capture) of mitigating climate change?
I recently saw a great talk by Allan Savory, the pioneering ecologist about holistic management of cattle grazing to prevent desertification of grasslands. He claimed that it is the only viable way ...
8
votes
2answers
249 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 ...
4
votes
2answers
165 views
How CO$_2$ warming effect stays overnight?
Water vapor looses it energy at night (no sun, no UV) and this is deposited as dew. Change of state requires a massive energy change, in general. Is the greenhouse effect of CO$_2$ not lost when it ...
6
votes
1answer
180 views
When sea level rises, does the increased ocean area cause the earth to cool down somewhat?
When the sea level rises, more of the planet's area is watery and less of it is land. Does this change in surface condition result in a change in global warming, such as a decrease in the net ...
1
vote
2answers
11k views
Why do climate experts from the UN/IPCC rarely mention Grand Solar Minimum?
I've read many papers about Grand Solar Minimums and Glassberg Minimums, known to science for a very long time, and studied and monitored with many public funds. History shows solar activity is the ...
4
votes
1answer
241 views
What are the ranges of natural (or pre-industrial era) levels of CO2 in the atmosphere in ppm and tons?
Are the levels of natural (before the industrial revolution) levels of CO2 and ppm known? Also as a related question, should the "natural" levels be considered before the industrial revolution or ...
-2
votes
1answer
212 views
Do HAARP-like programs have effects on climate? [closed]
Military powers like USA, Rusia and China have programs to heat through electromagnetic waves the Ionosphere. HAARP supposedly is a research program, but run by part of the military of US (Air Force ...
11
votes
1answer
438 views
Which percentage of $\text{CO}_2$ emissions are human made emissions?
I was watching a science/myth Youtube channel (science mixed with a lot of speculative/fantasy content) with 2M+ followers and the Youtuber said volcano made emissions were higher than human made ...
4
votes
1answer
80 views
Waterlevel increase calculation
So I tried to calculate the rise of waterlevel myself. But the results I have gotten seem to be pretty low:
Given the earths radius, I clalculated different Events:
1) If all landice melts there is ...
7
votes
1answer
158 views
How much could Earth's temperature increase by the time we run out of oil reserves?
According to this article How long will world's oil reserves last?:
At the current rate of extraction oil reserves will last 53 years.
And according to this another article, Global temperature - ...
4
votes
1answer
111 views
Is there consensus amongst climatologists that cold weather extremes are caused by global warming or human influence?
Is there consensus amongst climatologists that cold weather extremes are caused by global warming or human influence?
I hear the claim a lot that the recent cold weather extremes (such as the polar ...
5
votes
1answer
228 views
If US emissions went to zero how long until global emissions reach current levels
Given the current global CO2 emission trends, if the US overnight magically went to zero emissions (without affecting worldwide emissions), how many years until global CO2 emissions return to exactly ...
1
vote
1answer
153 views
Are we at the beginning of a Heinrich Event?
Does our current weather trend properly reflect a Heinrich Event? It seems like the drastic weather swings are what I would expect but I realize that is not definitive. I don't see the term bandied ...
6
votes
1answer
215 views
Would more or less land be usable if global temperatures rose?
I think a large portion of the earth's land is unusable from being too cold and land that is too hot does not have enough water and dries out which could be fixed by diverging water to those areas.
...
10
votes
1answer
380 views
Unstable North Polar Vortex?
What would cause a polar vortex to become unstable a split into 3 smaller ones? How rare is this and what long term effects could this cause if the vortex stays unstable?
http://www.severe-weather.eu/...
10
votes
1answer
4k views
Does this peer-reviewed study (referenced in Forbes) contradict the accepted position that climate change is real?
This Forbes article from 2013 (archive link here) with the headline "Majority Of Scientists Skeptical Of Global Warming Crisis" gets brandied around a lot. It states that
Only 36 percent of ...
36
votes
6answers
10k views
Is the sea level rise unusual?
I'm discussing climate change with a friend who is a climate change denier, basically the argument is that looking at this graph, is not clear that something unusual is going on, so the sea level rise ...
5
votes
1answer
91 views
Are there any consequences to carbon capture and storage that also sequesters oxygen?
A big argument for carbon capture and storage is true reversal; while switching to renewable energy and eliminating CO2 emissions is a must, it will not reverse the massive movement of carbon from ...
6
votes
2answers
347 views
What is the relevance of Arctic coastal erosion to the Earth's climate?
Due to global warming and Arctic amplification, Northern Hemispheric permafrost is thawing and becoming a source of carbon and many greenhouse gases, which then positively feedback to global warming ...
4
votes
1answer
113 views
Weather conditions to create significant glacier growth
I am fascinated at the rapid growth of Glacier Bay Glacier from 1600 to 1750, along with its rapid retreat from 1750 to 1900. I am interested in the local weather conditions during these times. What ...
1
vote
3answers
106 views
Where can I download recent precipitation data for Cape Town
I need data on monthly precipitation for Cape Town between 1970 and 2018. I found this page: http://cip.csag.uct.ac.za/webclient2/datasets/
But it only seems to offer information until 2000.
It's the ...
4
votes
1answer
187 views
Is it possible to create ice in poles? [closed]
Is it possible that human can built under the poles a controlled system to create again artificial icebergs? In order keep tight the melting ice and reduce the sea level? Can this system impact the ...
1
vote
2answers
456 views
Why is a future increase in solar luminosity by 10% supposed to have disastrous consequences for life on earth when the last 30% did not?
One remarkable thing about the climate history of earth is that despite the fact that solar luminosity was fully 30% lower in the beginning, temperatures were actually quite close to today. Since then ...
