Questions tagged [climate-change]

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

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3answers
127 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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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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33 views

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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How high of a carbon fee would reduce global emissions by 50% in 15 years? [closed]

The happy news is that it looks like I was wrong. As long as my side-by-side calculations are correct HR 763 catches up to and passes EMF 32 in the sixth year. OVERVIEW OF THE EMF 32 STUDY ON U.S. ...
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1answer
53 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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59 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
104 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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1answer
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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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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
33 views

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

In many articles in internet (I'm citing a couple for the sake of the question) , smokes from the fires (composed mainly of CO2 and CO) following a nuclear war would cool the atmosphere and would ...
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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
33 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
139 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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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
645 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
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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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2answers
85 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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340 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
65 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
101 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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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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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
79 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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378 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
84 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
121 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
36 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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80 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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59 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 ...
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2answers
52 views

Is there evidence to suggest that the release of methane clathrates in permafrost regions will impact climate change?

We can see that there are large buildups of methane clathrates in permafrost regions. Climate scientist James Hansen has predicted that the release of the permafrost methane clathrates could cause ...
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1answer
97 views

Could we sequester co2 by dumping forests in deep oceans?

We know that trees are the most efficient "tool" we have to get CO2 out of the air, but the problem is that most of their fixated CO2 will naturally reenter the carbon cycle through decomposition. ...
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1answer
93 views

If today's Earth becomes warmer, how will it compare to the Earth of the Cretaceous period?

Most pessimistic scenarios about climate change predicts a global rise of temperature of several Celsius degrees over the course of the 21st century if no action is taken. While such a shift in ...
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1answer
92 views

Origin of Serious Wildfires

At a very rough estimate, what proportion of wildfires are caused by natural events like lightning? I am absolutely sure that in Europe, where there are often wildfires, the sun is never hot enough to ...
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1answer
79 views

Does depletion of Planck radiation intensity in the upper atmosphere mean that “CO2 has no impact on climate change”?

In his recent book, Rex J. Fleming asserts that "CO2 has no impact on climate change", or, as he summarizes on his website: There are now over a dozen books available on Amazon.com that point out ...
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4answers
139 views

Isn't a warmer climate better for energy generation?

Nowadays, everyone talks about it: climate change, and more importantly, how to stop it from happening. Although there's a lot of debate around the topic, the conscensus is that by inventing a way of ...
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2answers
102 views

Why is carbon dioxide the gold standard in greenhouse emissions - and not nitrous oxide?

I admit that this is not a genuinely earth sience question, but since there is no stack exchange site genuinely devoted to general ecology, I dare to ask it here: From a table in the German Wikipedia ...
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is it better to take minimum measure of all measures or the mean of minimum measures as a minimum measure

We have taken the measurments of temperature, humidity, net radiation and pressure in our lab so we can calculate the potential reference EvapoTranspiration. So to find out the potential reference ET ...
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4answers
811 views

How did plants adapt to $\small\sf{CO_2}$ levels past 400k years? Why won't they do it again?

(Description from climate.nasa.gov: This graph, based on the comparison of atmospheric samples contained in ice cores and more recent direct measurements, provides evidence that atmospheric $\small\sf{...
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1answer
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What portion of global warming is caused by radioactive CO2 produced from cosmic rays?

The Earth's magentic field has been weaking recently, and the sun's magnetic field has been weaking recently, and it is a known fact that when either of these magnetic fields weaken (let alone both of ...
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1answer
70 views

How are CO2 emission effects and high altitude effects of air travel compared to each other?

The climate impact of air travel is often divided into CO2 emissions and "high altitude effects" like that of water vapour and cloud formation. The effect of the emitted CO2 is cummulative, as CO2 has ...
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Could Global Climate Change increase the average moisture in the air?

Given several hundred years, assuming global climate change results in the melting of the polar ice caps which leads to an increase in surface area of the oceans and an overall warming of the earth (...
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How does agriculture release so much greenhouse gas?

I recently came over some numbers of GHGs released per energy in food produced, and the result is pretty flooring. I can see how animal-based food production is quite inefficient so let's ignore that ...
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Could the extraction of energy by wind turbines be harmful to the environment?

Wind turbines work by converting some of the energy from wind to electrical energy. Is it possible to have too many turbines, leading to them removing too much energy from the wind? I'm not an ...
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1answer
88 views

Are sand deserts the greatest natural convection heaters on Earth?

Ask any climate scientist the question: "Why are deserts so hot in the day time and so cold at night" and generally you will get the same answer, it’s all about the lack of moisture and latent heat ...
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1answer
130 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 ...
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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 ...