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Questions tagged [climate-change]

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

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37 votes
4 answers
3k views

How does anthropogenic heating affect global warming?

Anthropogenic-sourced greenhouse gases are commonly cited as the main source for human-caused climate change. However, something that I never see discussed is the actual heat produced by human ...
Gimelist's user avatar
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57 votes
5 answers
47k views

How many trees would I have to plant to solve Global Warming?

According to NASA, causes of the Earth's greenhouse effect include water vapor, carbon dioxide, methane, nitrous oxide, and CFCs. Carbon dioxide gets the most press, and NASA's page says: Carbon ...
philipthegreat's user avatar
11 votes
7 answers
31k 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}...
Charlie Jiang's user avatar
6 votes
1 answer
1k views

What happens when the North and South poles flip?

How long does it take the magnetic field to move once the poles start to flip? What environmentally would change? Does the core of the Earth flip? The magnetic poles are moving now. When will it start ...
Muze's user avatar
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21 votes
4 answers
24k 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'...
ZakC's user avatar
  • 311
5 votes
2 answers
513 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 ...
user avatar
33 votes
2 answers
1k views

How much of the current global warming is due to human influence?

Approximately what proportion of the global warming seen over the the last century is attributed to anthropogenic sources?
naught101's user avatar
  • 5,435
19 votes
3 answers
2k views

Simple Climate Models that Predict Climate Change

I have a physics/maths background, and to me the most convincing evidence of a scientific fact is often a very simple model that gives reasonable results. A simplified model, which you can fully ...
tom's user avatar
  • 301
4 votes
1 answer
305 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. ...
leftaroundabout's user avatar
14 votes
5 answers
3k views

Why do greenhouse gases affect ocean temperature so much?

As I understand it, greenhouse gases absorb infrared radiation from the sun. Much of that radiation would otherwise continue and be absorbed on the planet surface in the ocean or on land. If CO2 ...
WolfRevokCats's user avatar
30 votes
6 answers
6k views

How much will sea level rise if all the polar ice melts?

There are many movies about global warming, which say that melting of all polar ice would cause the whole world to suffer a huge flood. According my research (teachers, TV, Internet) people hold one ...
Poomrokc The 3years's user avatar
24 votes
4 answers
7k views

Why is the temperature *still* rising?

2015 is the hottest year on record, and the average temperature continues to rise. I don't understand why this continues, as (over the past twenty years) so much work was put into reducing Global ...
none's user avatar
  • 249
24 votes
3 answers
1k views

How good were climate models of the 1990s at predicting the global temperature trends of the 2000s/2010s?

Was there a significant bias between the ensemble of climate models and the long-term temperature trends? What about spatial patterns?
InquilineKea's user avatar
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24 votes
3 answers
34k views

Why is there a seasonal cycle to the amount of CO2 in the atmosphere?

I'm doing some homework on the increase of $\mathrm{CO}_2$ in the atmosphere. On one of the graphs it shows the amount of $\mathrm{CO}_2$ peaks in May and has a low in November. Why is this? Shouldn't ...
Shannon Torstonson's user avatar
15 votes
5 answers
1k 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{...
A. Candy's user avatar
  • 153
13 votes
1 answer
2k views

Who are the 3% in the often cited "97% of climate scientists"?

The media have variously reported that: Ninety-seven percent of climate scientists agree that climate-warming trends over the past century are very likely due to human activities. Based on this ...
Nathaniel Bubis's user avatar
9 votes
2 answers
1k 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 ...
sbl's user avatar
  • 191
3 votes
1 answer
318 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 ...
polcott's user avatar
  • 386
1 vote
1 answer
198 views

Will a new glacial age take place on Earth or Holocene will become a new climatic epoch?

Pleistocene shows a switch between glacial and interglacial ages. However, humanity is burning fossil fuels and increasing atmosphere's $\ce{CO2}$ content. Should we expect a new glacial age after ...
user avatar
49 votes
3 answers
21k 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 ...
user avatar
31 votes
2 answers
10k views

Is this XKCD comic an accurate timeline of the earth's average temperature?

Apologies for the length of the image, which I found at http://xkcd.com/1732/. I'm mostly interested in the temperature line itself, both the historical data and the forward projections. The reason I ...
user1205901 - Слава Україні's user avatar
25 votes
4 answers
5k views

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 ...
Tester101's user avatar
  • 351
20 votes
5 answers
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 ...
John Chrysostom's user avatar
20 votes
4 answers
6k views

Do fossil fuels insulate the crust from the Earth's interior?

I was doing a project for my English class, and I came upon the article Energy conservation in the earth's crust and climate change. I can't view the full text of the article, but the abstract piqued ...
tox123's user avatar
  • 587
16 votes
1 answer
412 views

How will climate change affect the 3D distribution of lapse rate in the atmosphere?

The lapse rate is the rate at which temperature decreases with height. By "3D" distribution, I mean distribution across all latitudes, longitudes, and heights. Would climate change change the lapse ...
InquilineKea's user avatar
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12 votes
3 answers
3k views

Have there been any studies on how vehicles directly contribute to a rising global temperature?

I've tried searching for this myself, but Google is saturated with the Greenhouse Gases angle of Rising Global Temperatures. What I'm interested in is the following: Greenhouse gases aside, to what ...
Aww_Geez's user avatar
  • 221
12 votes
1 answer
1k views

Can climate change cause earthquakes, tsunamis, or volcanic eruptions?

Different scientists have brought forth a theory that climate change can cause earthquakes, tsunamis and volcanic eruptions. For example: Professor Bill McGuire of University College London in his ...
THelper's user avatar
  • 420
10 votes
3 answers
472 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 ...
Martin Van der Linden's user avatar
8 votes
1 answer
330 views

Does the amount of energy released from burning of fossil fuels have a measurable impact on global warming? [duplicate]

I understand that the main issue of global warming is greenhouse gases that trap solar energy instead of allowing it to bounce back into space. That being said, I've always had this impression or idea ...
Sidney's user avatar
  • 287
7 votes
3 answers
672 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 ...
Greendrake's user avatar
7 votes
2 answers
611 views

How much carbon dioxide does war release?

I'm wondering how much damage the Russian invasion of Ukraine has done to the climate, in particular how many tons of carbon has been released into the atmosphere. I'd be surprised if it isn't ...
Allure's user avatar
  • 191
6 votes
1 answer
79 views

What is meant by controlling and reacting factor?

I'm interested in issues related to Global warming and therefore started to read about it from this website --> Link As I was reading I got stuck in the third paragraph of ...
Yogesh Tripathi's user avatar
6 votes
0 answers
475 views

How much of Earth's surface would be covered by water if all ice melted? [duplicate]

I'm trying to find how much water would be on the surface of Earth and how much surface would it cover (how much land will remain) if all the ice at the North and South Poles (and everywhere else) ...
theagouf's user avatar
5 votes
1 answer
1k views

Rate of climate change with and without humans?

I was watching this interview of Bill Nye on Fox News. Bill claimed that the earth's climate is never in equilibrium, but human activity has caused the gradient to be much higher than it would've been ...
Ovi's user avatar
  • 317
4 votes
6 answers
595 views

Who are winners from the global warming? Are there any?

As a person living in Russia, I always had mixed feelings when hearing appeals to fight global warming. On the one hand, I completely understand that it is going to be a disaster for lots of people. ...
kandi's user avatar
  • 181
2 votes
2 answers
335 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 $\small\mathsf{CO_2}$ since 1950 ...
polcott's user avatar
  • 386
1 vote
2 answers
296 views

Can we run out of air because of global warming?

Can it be that our air will be unbreathable in a few years due to CO2 emission? I think I may suffer from global warming anxiety and I accuse CO2 for my shortness of breath. Is it rational?
FreeZe's user avatar
  • 121
1 vote
1 answer
161 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 ...
user avatar
38 votes
7 answers
12k views

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 ...
Samuraka's user avatar
  • 491
24 votes
9 answers
13k 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?
user11473's user avatar
  • 241
19 votes
2 answers
305 views

Will tropical cyclones form and be sustained in areas they previously were not due to global climate change?

With global climate change, is it possible that tropical cyclones (as seen in the Atlantic basin for example) are going to form and be sustained in regions where they previously did not, for example ...
Zoltán Schmidt's user avatar
19 votes
3 answers
1k views

How do we know that we are NOT in an "Ice Age?"

Historically, the earth has had five "Ice Ages" Each of them lasted millions, tens of millions, or hundreds of millions of years. The last ice age reportedly ended perhaps 10,000 years ago. That ...
Tom Au's user avatar
  • 2,244
18 votes
1 answer
458 views

Can climate models reliably predict meteorological extremes?

This question is related to and extension of my previous question which was about the methodology used to predict future climatic extremes: What is the methodology to analyze future climatic extremes ...
rozsasarpi's user avatar
17 votes
5 answers
3k 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) ...
Shane's user avatar
  • 279
17 votes
1 answer
465 views

What is the methodology to analyze future climatic extremes using the results of climate models?

What is the accepted methodology to predict future climatic extremes using the results of climate models? I have recently read a report about climatic extremes considering climate change (MICE, 2002)....
rozsasarpi's user avatar
16 votes
1 answer
2k views

How much would the Greenland landmass isostatic rebound contribute to long term climate change?

In reading the question What would the geology and climate of a supposed landmass near the pole be like, assuming a thoroughly warmer planet?, it came to mind that another factor may cause a shift in ...
user avatar
16 votes
6 answers
6k 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 ...
Jashan PJ's user avatar
  • 411
16 votes
3 answers
2k 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 ...
Aaron Rotenberg's user avatar
15 votes
2 answers
20k views

CO2 emissions per calorie (food)

I have seen several lists with CO2 emissions by weight for producing several different food products. I think this is an interesting consideration, and possible argument for vegetarianism/veganism. I ...
Faur's user avatar
  • 253
14 votes
1 answer
1k views

Temperature as a function of luminosity and greenhouse gas concentrations

The evidence seems clear that there is an interrelationship between solar luminosity, greenhouse gas concentrations, and temperature. Has temperature as a function of luminosity and greenhouse gas ...
user avatar