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Questions tagged [climate-change]

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

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6
votes
1answer
219 views

How significant is human influence on seismic activity?

Here's a graph from johnstonsarchive.net showing energy released by earthquakes and, however reliable this graph is, it shows huge differences in earthquake activity. About how big percent is the ...
1
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2answers
212 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 ...
5
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3answers
3k views

Would adding sulfur dioxide to the atmosphere have a global cooling effect?

There is reasonable evidence to suggest that the Earth is warming. The most probable cause appears to be increased CO2 in the atmosphere, which has been reasoned about for quite some time. There ...
16
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5answers
1k views

Is global warming being moderated by latent heat of melting polar ice?

I've only had a secondary education in physics, so bear with me, but with the greenhouse effect and all, wouldn't we be much hotter already if the ice melt-rate wasn't increasing, since more (heat) ...
2
votes
2answers
86 views

where to download NASA-NEX daily downscaled datasets?

I'm looking to download a small geographic area of the CMIP5 models part of NASA-NEX dataset. Previously I relied on the Planet OS OpenNEX GDDP website which had a great tool for selecting geographic ...
8
votes
3answers
266 views

Could the current climate change events cause long-term problems in the viability of Earth to sustain life?

There are a lot of reports on the consequences of climate change for the relative short term. From what I understand, in the next 100 years or so, we will face: global floods of coastal areas, ...
0
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3answers
158 views

How to design an experiment to quantify back radiation from atmospheric carbon dioxide?

Based on our current knowledge of CO$_2$ and current instrumental techniques, how big would a laboratory sample of air with 400ppm of CO$_2$ need to be in order to quantify the back radiation from CO$...
22
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7answers
10k views

Does human body temperature impact climate change?

The human body temperature is about 37 °C (99 °F), so as the population increases does this cause the Earth's temperature to rise?
5
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3answers
3k views

Is the Unified Theory of Climate (Nikolov & Zeller) compatible with the AGW/GHG theory in any respect?

Nikolov & Zeller have published a paper concerning what they call The Unified Theory of Climate. https://www.omicsonline.org/open-access/New-Insights-on-the-Physical-Nature-of-the-Atmospheric-...
1
vote
1answer
76 views

Does a climate change big data provider exist? [closed]

Does a big data provider (Like a Bloomberg, which is the world's leading financial data provider) exist which includes ALL the possible informations and parameters about climate change or in general ...
6
votes
2answers
322 views

Have there ever been any islands that disappeared due to rising sea level?

With global warming comes rising sea levels. This has been going on for at least fifty years. So haven't there been some islands that have been swallowed by now? An island could be nothing more than ...
2
votes
0answers
71 views

Which software is easiest to use to create plots like these? [closed]

There seems to be many options for a single problem, but each with different approaches and complications, and that makes is confusing and time consuming for this beginner to work out which to use. I'...
1
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0answers
33 views

Seeking CMIP5 or CMIP6 globally in .nc format

Is there in some ftp storage, a pre-processing CMIP5 data for direct download in netcdf extention?
7
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2answers
183 views

Does Earth risk losing its oceans to space due to global warming?

I read that we are facing the very real possibility of Earth's average temperature rising by more that 2 degrees Celsius by the end of the century. As I understand our planet is constantly loosing ...
5
votes
1answer
88 views

Technical term for percentage of CO2 remaining in the atmosphere

I have a theoretical exercise where I calculated the amount of CO2 that is released to the atmosphere per year (4.6 ppm). We assume that the relative increase of CO2 is 2 ppm, hence the percentage of ...
4
votes
0answers
81 views

Do man-made machines take natural Nitrogen out of the atmosphere and in turn cause global warming?

I read in Wikipedia that, "Natural Nitrogen, Dinitrogen forms about 78% of Earth's atmosphere. Dinitrogen is the most abundant uncombined element in the atmosphere." Do man-made machines destroy the ...
2
votes
1answer
110 views

How much net carbon can coral sequester?

So I am wondering how much carbon any given coral can sequester given that carbon dioxide dissolves in water and forms carbonic acid, and coral uses that carbonic acid in their own calcification ...
1
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0answers
621 views

What are the environmental effects of leaking hydrogen from large-scale energy storage mechanisms?

I recently have calculated the total cost of an energy system that is based on wind power as the primary power source and hydrogen as the energy storage mechanism. The total system costs are ...
14
votes
0answers
672 views

How will climate change affect the entropy budget of the atmosphere?

The entropy per unit mass of moist air can be defined as $$s=(1-q_t)(C_{pd} \ln{T}-R_d\ln{p_d})+q_tC_l\ln{T} + \frac{q_vL_v}{T}-q_vR_v\ln{\mathcal{H}}$$ And in statistical equilibrium, the entropy ...
8
votes
1answer
109 views

How can half a degree of average temperature result in such devastating impact on coral reefs?

Yesterday I read a number of news stories about the new IPCC's (International Panel on Climate Change) report regarding the current state of global warming. It reported that we are on track for ...
0
votes
1answer
298 views

Over which surface will the albedo changes due to clear and overcast skies have the greatest impact?

With respect to climate change, will the changes in albedos due to clear skies and overcast skies have the greatest impact on incoming solar radiation over ocean, sea ice, or land? My thoughts: On a ...
7
votes
2answers
88 views

Will a country that cares for its environment be affected by climate change due to other countries' activities?

Let's say my country is very environment conscious, has lots of trees and animals, protects the forest, uses clean/green energy, and has all kinds of environment friendly policies you can imagine. ...
2
votes
0answers
63 views

Optical Thickness of the Atmosphere

Homework question: Show that the absorption optical thickness of the atmosphere at pressure $p$ (i.e., between $p$ and the top of the atmosphere) as a function of the mixing ratio of the ...
1
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0answers
29 views

Clarification: Effective temperature, emission temperature, and effective emission temperature

This terminology is quite confusing to me. Are effective temperature, emission temperature, and effective emission temperature the same thing? Where does this occur, at the surface, or at some ...
13
votes
5answers
4k views

How to reduce the atmospheric temperature artificially?

Is there any gas/substance which absorbs/reduces atmospheric temperature? Ozone filters UV rays from the sun light and allows in infrared rays. In my knowledge these infrared rays are the cause of ...
7
votes
4answers
3k views

Does climate change cause increase in co2?

My main question is how do we know that increase in global temperature does not CAUSE an increase in co2 concentration? I am trying to develop my mental model of what's going on for the climate ...
4
votes
0answers
53 views

How is the vertical distribution of water vapor changing?

In this publication about data assimilation and observations (paywall alert) in the chapter General Concepts in Meteorology and Dynamics (by Andrew Charlton-Perez, William Lahoz, Richard Swinbank, ...
5
votes
2answers
1k views

When is the next glaciation due?

Let's say we invented a whizzy technology that took CO2 back to pre-industrial levels, say 280ppm, how long would it take for glaciation to resume ? (I'm not angling for a denialist perspective here, ...
3
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0answers
46 views

How Warm would the Earth have to get for any crops to grow in the Antarctic Peninsula/South Orkneys

I found some little silly speculation about settling Antarctica when it warms up, and I wanted to know the minimum amount the world would have to warm up in order for just the most equator-ward ...
2
votes
1answer
94 views

Could glacial melt alter plate tectonic movement?

Let's say some event caused runaway glacial melt, and removed half of the ice currently locked away in specific areas of the planet. Would the significant weight changes on various plates and fault ...
5
votes
2answers
3k views

How would Earth map look like if all ice melts?

Is there somewhere a map which indicates which areas and cities become sea?
8
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4answers
3k 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 ...
1
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1answer
286 views

Equations for Global Temperature Models

I'm a volunteer for 350, a grassroots organization that is fighting against climate change through education and advocacy. We're all volunteers, not climate scientists, and I'm looking for some ...
4
votes
1answer
134 views

Was climate change inevitable anyway, or is there more to it?

Climate change is now one of the greatest challenges facing humanity, but it seems that we have been here before; if we look at the world's climate over a much longer period than 150 years. During ...
1
vote
1answer
75 views

Intuition on overall effects from climate change under different levels of warming

I am not a climate scientist, but I have been reading climate literature lately for my own education. Much of it discusses various effects that could be expected with different levels of warming, ...
1
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0answers
26 views

Relationship between Earth's heat dispersion rate (average surface air temperature from summer to winter time) and greenhouse gases

What is the most effective way to study global warming and the role of greenhouse gases using a methodology based on analyzing the Earth's seasonal variations (summer-winter) of the temperature of ...
0
votes
1answer
278 views

In terms of the greenhouse effect, what is the Earth's heat capacity?

(Question moved from physics to earth science) Has the earth’s atmosphere reached an equilibrium at which the input radiation energy roughly equals its output, or is the output significantly lower ...
7
votes
1answer
196 views

Could a “sunbrella” parked at L1 block enough solar energy to counter global warming?

What part of the Earth should be "shaded"; the poles or the equator? Since the size of the sunbrella would depend on its ability to reduce certain wavelengths of radiation; what material or ...
2
votes
1answer
180 views

To what year do we need to return to prevent climate change?

I regularly see articles like this where a country has or has committed to reduce their carbon emissions by a certain percentage in relation to a certain year. That article mentions that Scotland has ...
10
votes
2answers
741 views

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 ...
1
vote
1answer
119 views

Does “Arctic Greening” mean an increase in the spatial extent of vegetation, an increase in particular types of vegetation, or both?

I am trying to study the impact of biogenic volatile organic compounds (BVOCs) on the atmospheric chemistry of the Arctic Region which has been said to be "greening", by taking HCHO as a proxy.
1
vote
2answers
85 views

If plants convert a greenhouse gas into a non-greenhouse gas, do they cool?

Plants turn Carbon Dioxide into Oxygen, that is not a greenhouse gas. But Carbon Dioxide is. Therefore, wouldn't plants cool the area?
3
votes
1answer
358 views

Does global warming affect tsunamis?

I have been doing some research into global warming, and I was curious as to whether or not increasing the temperature of the oceans would affect tsunamis to any significant degree. My gut tells me ...
1
vote
0answers
44 views

Global climate change

We all know that global climate change is becoming a big real change that is affecting the world's ecosystems and life cycles. Will global climate change affect the hot areas of the world or deserts ...
0
votes
2answers
109 views

What does 5,000,000 tonnes of CO2 look like?

Reading a news article Probe after Gorgon releases millions of tonnes of greenhouse gas, I am confused. CO2 is a gas, right? Gases are not very dense, right? So what does 5MT of the stuff look like?...
1
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0answers
27 views

Where I find the info about what plants, trees can be planted in a locality

I would like to know what plants, trees can be planted in a locality. I wanted this info around the globe based on latitude and longitude or by some other means. Is there a source organisation/source ...
1
vote
0answers
29 views

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: 0.25kgC/m2/yr Am asked: a. What percentage of 140,000.000tons/yr would be offset from reforesting 45,000 acres? ...
-1
votes
1answer
95 views

Global warming versus nuclear half-lives [closed]

What is (roughly) the half-life of the materials used/generated in a nuclear plant, if that plant goes into meltdown? Could the world bounce back from global warming in a shorter time period than that ...
0
votes
2answers
46 views

Calculating exoatmosphereic flux and figuring out amount of SW Earth will absorb at an albedo of 0.3?

Am working through two problems which I am not sure if I am handling correctly. Here they are: a. If the Earth decreases its distance from the sun by 0.03 Astronomical Units (AU), what will be ...
4
votes
2answers
147 views

Winter in the Northern Hemisphere in July? Can anyone explain it?

The July 2007 issue of the National Geographic Magazine dedicates several pages to "Climate Change" and "Global Warming". The author explains in detail the Earth's movements and how they provoke ...