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Questions tagged [climate-change]

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

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3
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0answers
37 views

Is this description of the effects of global warming supported by scientific research?

I found the following web-page which contains a dramatic degree-by-degree account of how climate change could play out in the future: http://globalwarming.berrens.nl/globalwarming.htm. It is more ...
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2answers
149 views

How reliable would measuring global heating from satellite be?

Some anthropogenic global heating (AGH) skeptics deny that any global heating is occurring. I figured out a way that could be used to refute them. A weighted average of all of the thermal points on ...
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6answers
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CO₂ level is high enough that it reduces cognitive ability. Isn't that a reason to worry?

I think that the level of carbon dioxide in the air is high enough to reduce the intelligence of humans. This is completely unrelated to greenhouse effect of CO₂ and climate change. Except that it ...
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2answers
86 views

What caused peak CO2 to rise, starting about 400,000 years ago?

This question assumes the accuracy of this (and similar) charts. Source of image. From the image, CO2 peaked at about 260, perhaps 265 ppm during the interglacial periods between 800,000 years ago ...
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1answer
36 views

How to better understand the RIP-nomenclature used in the CMIP5 project?

I am a statistician working on a climatological downscaling project in the Caribbean Sea. I am just starting to learn about the CMIP5 GCM data project. I plan to download CMIP5 data from 6 climate ...
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1answer
54 views

In the 800 kyr $\ce{CO_2}$ record, how detectable would a short-term peak be?

It is stated in https://cdiac.ess-dive.lbl.gov/trends/co2/ice_core_co2.html that the temporal uncertainty for the glacier $\ce{CO_2}$ records is less than $5~\%$ at any given moment. That means ‒ for ...
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1answer
68 views

Does clearing snow contribute to climate change?

I've been reflecting on climate change and pondering how much of it is truly man-made. Anyone who's shoveled a walkway know that the snow melts faster beside the walkway than it does in the middle of ...
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1answer
116 views

With so many positive feedbacks accelerating global warming, how did the earth ever re-enter ice ages after it came out of one?

We hear a lot about positive feedbacks when it comes to global warming. For example: ice reflects solar radiation, so as the ice melts more solar radiation is absorbed which accelerates warming; ...
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0answers
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The climate effect of the Russian industrial collapse in the early 90's

In 1982 ExxonMobil made this diagram with a slightly excess of the concentration of atmospheric carbon dioxide and global warming. Can this error be explained by the Russian industrial collapse in the ...
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0answers
24 views

What are the ranges of CO2 levels for inner cities and should CO2 be added to the air quality index?

I have a indoor CO2 monitor and putting it on my balcony it indicates values of 1400-2200 ppm for different days ? Is this even possible and what are the ranges of CO2 levels for the outside air of ...
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3answers
136 views

Does extrapolating current CO2 trends indicate 7632 PPM CO2 and 14C temperature anomaly within 200 years?

Does extrapolating current CO2 trends indicate 7632 PPM CO2 and 14C temperature anomaly within 200 years? It looks like simply extrapolating the current trends of increasing atmospheric CO2 would ...
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1answer
70 views

Quickly breeding oysters to combat oceanic pollution?

I've been doing some wikipedia binging and it's come to my realization that it may be in the Earth's best interest to raise the world oyster population as quickly as possible. The basis for this is ...
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3answers
2k views

Is there any evidence for higher air pressures in the geological past?

I was curious about how the Earth's overall air pressure has varied over time, and tried to take a look around the internet. However, Google pops up a lot of sites with questionable science proposing ...
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2answers
179 views

What could possibly be a rational basis for rejecting climate science? [closed]

Here is my logic (thus not opinion) if the anthropogenic global heating AGH deniers actually do not have any rational climate science basis for rejecting anthropogenic global heating then everyone ...
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5answers
135 views

Why is smoke considered a factor of global cooling when analyzing nuclear winter scenarios, but arent when analyzing global warming scenarios?

In many articles on the internet (I'll cite a couple for the sake of the question), smoke from the fires (composed mainly of CO2 and CO) following a nuclear war would cool the atmosphere and would ...
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1answer
72 views

How do we allocate partial CO2 doublings for Empirical Climate Sensitivity?

How do we allocate partial CO2 doublings for Empirical Climate Sensitivity? I applied partial doublings on a linear basis, is this correct? Climate Threat to the Planet:Implications for Energy Policy ...
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2answers
208 views

How can we accurately quantify the degree of scientific certainty that global heating is caused by humans?

How can we accurately quantify the degree of scientific certainty that global heating is caused by humans? It seem virtually certain that the huge 100 PPM spike in CO2 since 1950 can only be caused ...
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1answer
36 views

How do we apply CO2 sensitivity (3C ± 1.5C for every doubling) to current CO2 levels

https://en.wikipedia.org/wiki/Climate_sensitivity#Estimating_climate_sensitivity This indicates that current CO2 levels have a temperature equilibrium of 2.2C disagreeing with statements that we are ...
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4answers
189 views

If planting trees is ineffective to tackle climate change, why do people plant them?

I've read answers that outline how if we afforested large (continental-scale) masses of land, it would do little in the way of tackling climate change. While it would sequester CO2 for about a century ...
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0answers
31 views

How large were CFC emissions per year before the Montreal Protocol came into practice?

This article The China CFC dilemma states CFC emissions now might be 67,000 tonnes per year. I tried to look for how large were the emissions of it before the Montreal Protocol but I couldnt find it. ...
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Vehicles Emissions

What is the suitable handheld device to measure the CO2, CH4 and N2O emissions from the tailpipe of cars? and what the steps to convert the emissions that will measure by the handheld device in unit ...
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2answers
62 views

Could burning all fossile fuels (available on earth) render the atmosphere unbreathable?

What if humanity burns all fossil fuels it can find, putting the negative effects of climate change aside, would the enormous amount of CO2 in the atmosphere eventually make it unbreathable?
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2answers
112 views

Why rely on climate models as opposed to paleoclimate data?

Something I hear often from climate scientists, and indeed even politicians, is that we "don't understand climate change very well". And, I'm sure this is true since the climate is a complex adaptive ...
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24 views

Can any natural process explain this rate of CO2 increase? [duplicate]

Can any natural process explain this rate of CO2 increase? [![1000 years of CO2][1]][1] [1]: https://i.stack.imgur.com/MO0mK.png The prior similar question used different data as its basis. This ...
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How does extra carbon dioxide in the atmosphere contribute to radiative forcing?

The CO2 absorption spectrum taken at 200 mmHg partial pressure, beam path length = 10 cm, resolution = 4 cm^-1 shows that light can only travel a couple hundred meters before being completely absorbed ...
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6answers
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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 ...
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62 views

Does anyone have any data indicating a faster rate of CO2 increase?

Pieter Tans 2019-10-07(lead scientist of NOAA's Global Greenhouse Gas Reference Network): Based on the best historical data that we have available CO2 is probably increasing at a rate at of least ...
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1answer
124 views

Is there any natural phenomenon that can account for the 100 fold faster CO2 rate increase?

"Based on the best historical data that we have available CO2 is probably increasing at a rate at of least 100 times faster than at any time in the last 800,000 years." Pieter Tans lead scientist of ...
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3answers
11k views

How do 'greenhouse gases' let heat in, but not let it out?

That honestly doesn't make any sense to me. How could heat pass through a gas one way but not the other? Its not like our upper atmostphere has a bunch of doors that can only open one way. To me, that ...
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2answers
80 views

How is climate change today different than the climate change that ended the ice age(s)?

Someone I know posted a question about climate change that I do not know how to answer. While I do believe (for lack of better word) in climate change, I do not know how to answer this persons ...
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1answer
35 views

Will carbon tax be applicable to other emissions? [closed]

Will Carbon tax be applied to other emissions or only carbon emissions like Carbon dioxide & Carbon monoxide ? Can non-warming pollutant emissions like Chaff(Chemtrail) also be taxed under the ...
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Are there models of mortality due to sea level increases (via climate change)?

In a self-answer of mine on Skeptics, one of the comments rightly pointed out that the model in question (from Impact Lab) does not explicitly account for mortality due to sea level changes. Are there ...
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2answers
149 views

What is the most cost-effective solution to climate change based on scientific evidence? [closed]

Please don't answer without citing scientific research which has a general consensus or article from a reputable source based on verifiable research citations. I recently read this article about a ...
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0answers
84 views

On what basics, can scientists predict the effects of climate change?

I don't know much about the topic of climate change to be honest. However, I've been attending a number of talks recently on the topic. As someone who studies mathematical models and uncertainty ...
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1answer
716 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. ...
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4answers
2k views

Why do we recycle paper?

Recycling metal and some plastics makes complete sense to me. Why bury something in a landfill that you'll have to find and dig up more of later. What I don't get is why we recycle paper products, ...
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3answers
375 views

Are plastics a carbon sink and how much carbon is released to the atmosphere making them?

If we were to make some technical jump to renewable fuel and renewable energy, would making plastics from oil release green house gasses, how much, and would plastic function as a carbon sink? Sorry ...
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1answer
100 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
66 views

Can aerostats be used for fine-grained control of the weather

Most of the discussed geoengineering ideas aim to change the average temperature of the earth instead of trying to control local weather. Aerostats can be used to change the local temperature in ...
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1answer
113 views

Could someone please validate the Holmes equation [closed]

Dr. Robert Holmes has converted the ideal gas law to T = P M / (ρ R) in this paper: (Molar Mass Version of the Ideal Gas Law Points to a Very Low Climate Sensitivity) with T = temperature P = near-...
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0answers
145 views

Cooling effect from the oceans in global warming

The ocean soaks up about 90 percent of the heat of climate change, because of ocean heating. When using the formula of Svante Arrhenius to calculate forcing due to atmospheric $CO_2$ $\Delta F=\alpha\...
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2answers
2k 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
84 views

Why did “Glaciologist Princess Elsa” have to leave the glacier because it was too warm?

This tweet shows "Glaciologist Princess Elsa" is actually Caltech geophysics PhD student and cryoseismologist Celeste Labedz. The BBC News article What's a 'Science Princess' doing in an ice field in ...
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1answer
401 views

Tipping point theory, historical examples

This article gives a wonderful overview of tipping point theory, where a large system can be brought into a different state by a small perturbation. Searching online I have found mostly articles on ...
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2answers
85 views

Is it normal for a cyclonic storm to form at the latitude of New York, USA?

I am following climate activist Greta Thunberg's sail to N America from Europe on https://tracker.borisherrmannracing.com/. The model shows a cyclonic storm forming south of Nova Scotia, east of New ...
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3answers
128 views

Has the present rise of CO2 ppm been proved to be caused by human activity?

The level of CO2 in the atmosphere has risen roughly from 300 to 400ppm over the last 60 years. What are the reliable calculations showing that such a rise has been caused by human activity? I am ...
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1answer
37 views

What is the total mass of organic carbon on Earth?

What is the estimated total mass of organic carbon plus elemental carbon (defined here as all carbon in any chemical form, minus carbon dioxide, inorganic carbonates, and other fully oxidized carbon ...
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2answers
84 views

Climate change research and policy [closed]

How impactful is climate change scientific research on climate change policy? Are there any statistics which help to visualise the effectiveness of new scientific findings or new technology innovation ...
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5answers
255 views

How Can Smog in Metropolitan Cities like Delhi & Beijing Be Reduced?

These two cities are facing the worst smog in Asia and I think in the world and people of these cities have no choice other than to wear masks when going outside. ...
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3answers
70 views

Impacts of high-altitude emission of greenhouse gases (GHG) compared to sea level GHG emissions

I often hear that the emission of greenhouse gases (GHGs) by planes is particularly concerning because the emission of GHGs at high altitudes has an even higher impact on global warming than the ...