Questions tagged [climate-change]

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

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0answers
48 views

What will happen to the tropical rainforest when climate increases by 5°C?

Today's most likely outcome regarding climate change is between +3°C and +6°C. My guess is at least +5°C. Has anybody found some papers indicating the average increase at the equator and a prognosis ...
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1answer
89 views

Building massive seawall around endangered Islands like Mauritius to save from climate change [closed]

Would it be possible to build a massive seawall, say maybe even made from metal that could rise as the sea level rises to prevent being erased? I am not considering costs here, nor beauty, only if ...
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3answers
331 views

Did climate cool down when underground hydrocarbons stocks formed?

As far as I understand, the dominant theory of modern climate change says that recent warming is mainly caused by the massive burning of hydrocarbons that used to be stored in solid form mostly ...
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1answer
1k views

Why is carbon pollution given more importance than Sulfur pollution or Nitrogen pollution?

Nitrous oxide ($N_2O$) - primary greenhouse gas Carbon dioxide ($CO_2$) - primary greenhouse gas Methane ($CH_4$) - primary greenhouse gas, explosive Nitrogen monoxide ($NO$) - secondary greenhouse ...
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Next Ice age may be unavoidable

During the warm period before the most recent ice age, 120,000 years ago, roughly half of the Greenland ice sheet melted.This is thought to have been the cause of the last ice age. Question: If this ...
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Axial Obliquity and Climate Change

The Wikipedia page for Earth's Axial tilt says: Earth's obliquity oscillates between 22.1 and 24.5 degrees on a 41,000-year cycle. It is currently 23.44 degrees and decreasing. My Questions are: ...
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1answer
74 views

Which CMIP5 models give the highest and lowest warming for RCP8.5?

Question is in the title. I'm doing impacts research and need to pick a couple of scenarios before downloading GCM runs. Want to pick a low one and a high one and one in the middle of the road. I'm ...
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3answers
329 views

Do solar panels reduce the amount of suns rays reflected back into the atmosphere ? Therefore reducing global warming

The way I understand the basics of global warming is we are putting to much Co2 into the atmosphere which increases the size / density of atmosphere shell, sun rays enter the atmosphere then there is ...
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1answer
763 views

Is it possible to forecast ocean salinity 100 years into the future?

Paleosalinity is measured by chloricity of pore fluids (Adkins 2002). Current data are provided by the CORA dataset. In addition to answers to the main question, there are a few more points I'd like ...
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33 views

In which ways is soot the perfect absober of infrared and the absorber of ultraviolet?

In other question we've been discussing factors of the nuclear winter effect, soot among them. In this one I'd like to narrow the list down to soot, more precisely to ask about its ability to absorb ...
3
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1answer
63 views

Were there any plans or proposals for “unilateral geoengineering deployments” before this paper was publsihed?

I saw the catchy Phys.org news title Artificially cooling planet 'risky strategy,' new research shows and then looked at the open access article, in Nature Communications (14-Nov-2017 online) Impacts ...
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1answer
135 views

Can Volcanic Eruptions Help Combat Global Warming in the Long Run?

I've been reading about volcanic eruptions on wikipedia, and I've found that very big eruptions cause the earth's temperature to drop by a small fraction of a degrees Celsius due to the ash it ...
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613 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
106 views

Educational book on science of climate change with action items?

I originally posted this over on Sustainability.SE and someone suggested I try asking over here. Can anyone recommend a book or books, intended for a non-scientific audience, which covers some (or ...
3
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1answer
97 views

Is evapotransporation accounted for in climate models?

Is evapotransporation accounted for in climate models, or is it considered so insignificant that it's not considered? Could additional crops being planted within the last 100 to 50 years account ...
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84 views

What are the arguments FOR Climate Change influenced by the drifting of Geomagnetic Poles? [duplicate]

*Over some years I was hovering over the developments of the ESA SWARM mission and probing random magnetometers from the Russian-Ukrainian observatories as a private researcher and a non-scientist. I'...
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1k views

Can volcanos change the climate?

I have heard politicians claiming that volcanoes are the sole cause of global warming and using so called "NASA data" to show that the Earth is actually cooling instead of warming. While the nature ...
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7answers
18k views

Is there any experiment to prove that CO2 with the atmosphere concentration can have greenhouse effect?

All gas molecules have the capability to absorb radiation energy. $\rm{CO}_2$ has much less capability to absorb radiation energy, comparing with water vapor. In Earth's atmosphere currently $\rm{CO}...
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1answer
43 views

'Forcing' in PDSI Calculation

I'm new to climate science - starting to get familiar with the field by reading some published articles. Terminology is always hard when starting into a new domain. In this paper, Dai - Increasing ...
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0answers
12 views

Do surface temperatures at lower latitudes continue to correlate with frequency of noctilucent clouds in the arctic stratosphere?

I saw this image in this answer to the question Noctilucent clouds and anthropogenic climate change which was listed as related to the question “New” cloud types: Can they be used as markers for ...
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1answer
97 views

Cooling film area to undo global warming

It is estimated that only 100 square miles of solar panels could completely satisfy the United States demand for energy. This got me thinking: A cooling film developed at UC Boulder claims it can ...
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1answer
127 views

Is the Mauna Loa CO$_\mathsf{2}$ record affected by the nearby mantle plume?

How is it possible that Mauna Loa Observatory is the International Reference Observatory for CO2 Global Measurements if it is placed above the most important earth thermal plume that is heating the ...
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1answer
71 views

Are Earth´s interannual global climate variations affected by other bodies in the solar system and their evolution?

Are fluctuations like El Niño and La Niña entirely independent of outside influences such as the gravitational effects from other planets, variation in solar output, etc?
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1answer
63 views

Why has the average low for the hottest months in Clearwater Florida about 5 degrees higher than the historical average?

Look up Clearwater Florida on Wikipedia and it gives you the average low for the Months of July and August as being 74.2F. About 3-4 years ago I picked up running as a main hobby and the temperature ...
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How is OLR power of the atmosphere distributed with altitude?

The OLR (outgoing longwave radiation) from the top of the atmosphere to space is composed of radiative energy emitted by the atmosphere at all altitudes, as well as the surface. How is the radiative ...
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3answers
4k views

How will sea level rise be distributed across the globe?

Sea level rise from melting glaciers will not be uniformly distributed across the globe. However, it isn't clear to me what places will have the most and least extreme changes in sea level rise. I ...
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2answers
1k views

Are greenhouse effect and ozone depletion correlated?

I have read that these phenomena do not have an interaction. However, I would think if CFCs cause the ozone layer to thin, and more UV radiation enters the Earth system, the Greenhouse Effect would ...
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1answer
187 views

Making sense of the math of climate change

Let me state upfront, I'm not arguing the existence of climate change, just trying to clarify my own understanding of something that doesn't make sense to me yet. With apologies for the layman's ...
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1answer
572 views

Hypothetically, would digging a big trench from the ocean and flooding desert areas be a bad solution to combatting sea level rise? [duplicate]

My question is basically the title. Ignoring most of the feasibility of the enormous engineering and earthmoving requirements (I guess I mean to say, given an unlimited budget) in very hot areas, ...
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2answers
280 views

Is non-randomly-sampled historical data representative?

I'm a global warming skeptic, and one of my concerns is the accuracy of historical global temperatures. Since these temperatures weren't sampled at random locations or gridded points, can they be ...
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2k views

Could this study “totally dismantle” Global Warming claims?

Could this study "totally dismantle" Global Warming claims? That's the assertion made in the article ‘Bombshell’ climate-change study could totally dismantle the claim humans are causing global ...
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2answers
816 views

Why are CO2 sensors so expensive when CO sensors aren't?

Please excuse me if Earth Science is not the correct place to ask this question. I read a New York Times article about increasing CO2 levels in the atmosphere: "Carbon in Atmosphere Is Rising, Even ...
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Is there a formula to calculate shoreline length or water position from ocean?

Assuming in the past the water of the oceans were lower does it also mean that the water was not where it is right now?
 If yes, then how do we calculate approximately where the water would have been ...
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Good practices and pitfalls when fitting models $y = f(weather)$ and predicting $\hat{y} = \hat{f}(GCM)$

I've got a phenomenon of interest, $y$. It is determined in large part by the weather. Naturally, one becomes interested in what climate change may do to $y$, so one fits a model of the form $y = f(\...
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373 views

What is the “global mean surface temperature change estimate” an estimate of?

NASA publishes what it calls an "estimate" of the Earth's global mean surface temperature. Digging through papers I've been able to find some documentation of how these numbers are computed, but I ...
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5answers
1k views

Academic but accessible defense of the scientific understanding of anthropogenic climate change?

I'm an intelligent and well-educated guy, but all of my schooling has been in economics, statistics, and public policy. I'm interested in reading a thorough explanation/defense of the scientific ...
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1answer
110 views

Are there datasets like the global land-ocean temperature index for land surface temperature only?

I have no background in climate science, but I've become interested in explanations of the so-called "global warming hiatus" from 1998-2013. One explanation that people seem to think is convincing ...
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2answers
128 views

Why is it good scientific practice to 'build' a 'control Earth' from models, and where else do we 'build' controls?

Usually, when data is collected in an experiment, scientists have a control. Experiments are seen as flawed without controls. I am just curious as to where else scientists have 'built' controls using ...
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0answers
104 views

Are there any energy budget diagram showing separate day/night and summer/winter values?

I particularly like the classical energy budget diagrams like that produced by Trenberth et al in 2009. They are simple to understand and show all the various heat transfer mechanisms operating on the ...
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4answers
10k views

What would be the effect of bringing seawater pipes to the Sahara desert?

This is a childhood dream. What would happen if pipes were installed (similar in principle to the Great Man-Made River, but for seawater) to continuously pump seawater into the Sahara desert. Let'...
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2answers
1k views

Are there anti-greenhouse gases?

The Greenhouse Effect can be described semi-formally as follows: With no atmosphere, virtually all of the heat received by the Sun would be radiated back into space at night. This can be seen on the ...
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1answer
220 views

How can every ton of CO2 cost 3 square meters of summer sea ice per year - quantitatively?

The Science article The average U.S. family destroys a football field's worth of Arctic sea ice every 30 years states: Every additional metric ton of carbon dioxide (CO2) puffed into the atmosphere ...
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1answer
115 views

Why do values stored in data files, such as climate model output, appear to be high?

I'm in doubt of some values for future scenarios of climate change that were downloaded from http://www.worldclim.org/version2. For example, the NCAR circulation model for ...
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0answers
48 views

How can I analyze how environmental conditions are related among different sites?

I want to analyze how the environmental conditions along the migratory route of a bird are related to the environmental conditions found at the breeding ground (which it is at high latitudes and we ...
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2answers
750 views

How do we apply the Stefan-Boltzmann equation to radiative heat transfer from/to CO2 in the atmosphere?

If we can use the Stefan-Boltzman equation to quantify the radiative flux leaving a solid body due to emission of radiation and to do it properly for a solid body we need to include the emissivity ...
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1answer
462 views

How much of Earth's forested land is currently protected from logging/deforestation?

Deforestation is an ongoing global problem. From this National Geographic webpage: The quickest solution to deforestation would be to simply stop cutting down trees. [However], financial realities ...
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1answer
390 views

Experimental testing to falsify the theory of the greenhouse gas effect [duplicate]

Irrespective of how accepted any scientific theory happens to be it is often worth thinking about a possible experiment to test said theory and perhaps falsify it. If we wanted to do this for the ...
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1answer
88 views

Is the work “The photochemical origin of life” ,by A.Dauvillier, in line of principle still valid today? [closed]

Dauvillier, through his studies, demonstrate that a rise of 2 degrees, of the average temperature of the planet represents a point of no return, beyond which an irreversible process would trigger, ...
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3answers
507 views

Which physical parameters can we actually measure to confirm the existence of the Greenhouse Effect (GHE)? [closed]

The theory of a GHE in a planetary atmosphere is rather well known. Many claim it is no longer a theory but actually proven as a fact. However I have been reading a lot of things Richard Feynman said ...
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2answers
902 views

How do the known abrupt climate change events fit into the xkcd Earth temperature timeline?

The xkcd "Earth Temperature Timeline" depicts the global average temperature during the past 20,000 years, based on the known data. We already have a question about the chart's general accuracy, but I ...