Questions tagged [climate-change]

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

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2
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1answer
71 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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0answers
70 views

What are the feedback loops in climate regulation?

There are multiple feedback loops in climate regulation, for example: warming - melting ice - reducing albedo - increasing solar absorption - warming. warming - melting permafrost - releasing carbon ...
5
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1answer
104 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
64 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
70 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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0answers
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 ...
2
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1answer
69 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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1answer
88 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
45 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 ...
3
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2answers
48 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
25 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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0answers
60 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 ...
5
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1answer
64 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
182 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
210 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 ...
4
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1answer
97 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
89 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?
19
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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 ...
3
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2answers
510 views

Is sea erosion the opposite of sea level rising (or rather, an adjacent phenomenon)?

Because I understand the mechanism of sea erosion as to take earth away from shorelines (and scatter it deep into the sea floor) and also to derive from climate crisis, I ask the following question: ...
4
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1answer
65 views

What would the average temperature be if there were no greenhouse effect from water vapor? [closed]

CO2, methane and other gases contribute to the greenhouse effect. But most of the greenhouse effect is caused by water vapour in the atmosphere. There is always a lot average moisture present, but it ...
5
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1answer
109 views

Why does climate change generate desertification?

According to IPCC: Climate change can be a significant driver of desertification and land degradation and can affect food production, thereby, influencing food security. Source: IPCC My ...
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0answers
69 views

How can we best objectively quantify climate change mitigation urgency? [closed]

Quantifying climate change mitigation urgency seems to have three aspects: (1) Green House Gas reduction targets required to meet a specific goal such as 2C. The first guesstimate seems to be zero ...
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0answers
37 views

Help in understanding this. Is this just an empirical observation on climate sensitivity?

I was reading this on realclimate.org. My question on the below is this. Physics can tell you the radiative forcing of CO2, which is $\small\mathsf{5.35ln(Cnew/Cpreindustrial)}$. This tells you how ...
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4answers
200 views

What exactly is a published climatologist?

I am trying to get Gallup to do a scientific poll of published climatologists to greatly strengthen the credibility of the 97% consensus. This must start with very excellent formal definitions of ...
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2answers
195 views

How much heat was released from the 2019-2020 Australian bush fires?

How much heat was released from the 2019-2020 Australian bush fires? And is that likely to have a measurable impact on global atmospheric heat content? Maybe as a secondary question: How much impact ...
4
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1answer
71 views

Which method is used to calculate tonnes carbon from tonnes CO$_2$ equivalents of GHGs?

It appears that all GHGs are first translated into Carbon Dioxide Equivalents (CDEs) and that calculation is fairly straight forward. Many report in tonnes of Carbon instead of tonnes CDE. I am ...
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1answer
91 views

What is the second thermometer in the image from the Esperanza Antarctic temperature record?

Today, the Argentinian meteorological service tweeted about a new temperature record for Antarctica of 18.3°C, made on the Espezanza peninsula. This was subsequently reported by many other sources. ...
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1answer
95 views

What are the affirmations regarding the effects of climate change that have a high degree of consensus amongst climate scientists?

I have seen ample consensus amongst reputable scientists that the earth is getting warmer, and this fact is due to human activity (e.g https://climate.nasa.gov/faq/17/do-scientists-agree-on-climate-...
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2answers
112 views

Hydro-meteorological hazards vs climate extremes

I always saw the definitions of "hydro-meteorological hazards" and "climate extremes" as almost interchangeable in the climate change and natural hazards literature. The other day I was discussing ...
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0answers
37 views

Climate modelling: statistical downscaling or dynamical?

I would like to assess climate change impacts on Protected Areas (e.g. natural reserves, national parks) for Mediterranean countries. I found easily future data from several Global Circulation Models ...
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3answers
193 views

Shouldn't we encourage consumption of single-use plastics? Plastic is a good way to sequester carbon [closed]

I've heard a bunch of impractical proposals for ways to sequester carbon: pump CO2 gas into the ground, grow trees for the sole purpose of burying them underground where they won't decompose... and ...
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0answers
74 views

Author's Name Of A Book On Bill Maher's Shelf [closed]

Could any of you, please, tell me who is the author of this book on Bill Maher's shelf? The book name is "Climate Science" and the cover color seems to be green. I looked for it on the Amazon website ...
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3answers
3k views

Why have “ozone-depleting substances” led to a third of all global warming and half of arctic sea ice loss?

According to the Phys.org article "Ozone-depleting substances caused half of late 20th-century Arctic warming, says study" (emphasis added): A study published today in Nature Climate Change by ...
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0answers
55 views

Median earth temperature development in 20th century

Are there graphs with the median temperature development in the 20th century and if not, is there readily accessible data that can be used to calculate it? Median is statistically more stable, at the ...
13
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3answers
981 views

How is global greenhouse gas emission calculated?

I am sure there are different methodologies to arrive at such a number. Can someone in layman terms describe some of the most widely used and trusted methods and what data are used? Sorry I am outside ...
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1answer
45 views

What is the global warming potential (GWP) of any gas over a 1 day time frame?

Since in 100 years, the global warming potential (GWP) of methane is 28-36, what will be the GWP in 1 day time frame? Can it be calculated that way?
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0answers
77 views

Climate change: Human vs Natural [duplicate]

The planet has been warming for thousands of years. Human activity has accelerated the warming, but by how much? At some point in the future, without human intervention, the climate will have ...
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4answers
398 views

Can anyone explain the reason why CO$_2$ increases global temperatures (not the simplistic greenhouse analogy provided for public consumption)?

The greenhouse effect analogy of global warming is that atmospheric carbon dioxide CO$_2$ absorbs some of the infrared radiation emitted by the Earth, and redirects a portion of that radiation back ...
37
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6answers
10k views

Is climate change a vicious circle?

My question refers to the current process of climate change. CO2 is rising, which leads to the greenhouse effect, which raises temperatures. This leads to more wildfires, which reduces number of trees,...
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0answers
57 views

Time for water vapor to generate more greenhouse effect than latent heat?

I have an argument with a climate change denier. He says the raise of water vapor in atmosphere causes a "much larger" cooling effet by taking vaporisation heat from the ground than the heat ...
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2answers
120 views

Could we control the weather with a disk in space?

There is recorded evidence from solar eclipses that the moon's shadow has a detectable weather effect. If we placed a disk in space we could project a cold spot onto the planet and control it's ...
28
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11answers
10k views

Global warming - why doesn´t mankind collect heat (thermal energy) and turn it into electricity or send it to space?

Why doesnt mankind "collect" thermal energy (there has to be some way: thermal couplings, detour over chemical energy, whatever) and after it has been concentrated at one point, turn it to electrical ...
2
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2answers
317 views

Could pumping ocean water into desert areas help reduce sea level rise?

I have been reading the discussion about pumping sea water into the desert for purposes of irrigation and changing the dry climate of that area, but what about to just purely offset the rising sea ...
5
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4answers
334 views

Why are most effects of the predicted climate change negative?

Most of the commonly mentioned effects of the ongoing and predicted climate change are negative: more extreme weather effects, more destructive weather, more diseases, rapid extinctions, etc. Why is ...
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2answers
462 views

Could Australia's bushfires aerosols actually decrease global temperature?

Given the vastness and intensity of the bushfires that have been going on in Australia for weeks now, to the point they are generating their own weather and having an impact thousands kilometers away ...
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1answer
147 views

How likely is Earth to naturally reverse climate change in the next 2 decades?

A new decade question: given that the “mini ice ages” were triggered by volcanic activity, how likely is it that we will experience similar levels of volcanic activity over the next 20 years? In ...
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0answers
138 views

Equatorial Bulge and its implications on the climate

How much of the variance in the climate is due to the equatorial bulge and how much sun radiation do we lose due to the equatorial bulge? I am interested in the variance both through time and ...
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0answers
72 views

Climate Change - finding solutions [closed]

My questions are: is there a significant, joint, worldwide, inter-disciplinary, scientific effort to study (brainstorm) possible solutions to climate-change? If it does exist, in whatever form, does ...
2
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2answers
68 views

How much pollution would it take to stop global warming?

The global cooling hypothesis of the 1970s included the theory that aerosols lead to global dimming. That is, that pollutants reduces the amount that the Sun warms the Earth, causing the Earth's ...
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1answer
80 views

Where oil is used for [closed]

I am trying to study climate change and lately, I am realizing that oil companies were/are drilling for oils at Alaska, Arctic, Antarctica. Where oil (which oil company drills) is used maximum for? I ...

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