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47 votes
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What started the US Dust Bowl of the 1930s, and could it happen again?

The Dustbowl occurred during the 1930s because of a combination of man-induced drought and the (mis)use of relatively new farming practices. In the 1920s, the spread of automotive (and tractor) ...
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38 votes
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I just read news that Antarctica had set a new record high temperature, above 18 °C. How can this be the case if it is currently winter there?

You just read the news too fast. WMO announced that, after evaluation by a committee, they have validated the 18.3°C temperature recorded in February (i.e., in summer) last year: GENEVA, 1 July 2021 (...
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35 votes

Why is the temperature *still* rising?

"So much work"? Actually, compared to the global rate of greenhouse gas emissions, it's a case of "so little work"! From a scientific perspective the 'economists' solution' of carbon trading was ...
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33 votes

In the northern hemisphere summer, why are places in the north cooler than those in the south?

The image below (apparently from "physicalgeography.net" is somewhat instructive: Notice that even in the middle of summer, India (at about 30 °N) still gets slightly more sun than the ...
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28 votes
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How much of the current global warming is due to human influence?

Firstly it is worth demonstrating that 97% of climate scientists agree that climate-warming trends over the past century are very likely due to human activities. W. R. L. Anderegg, “Expert ...
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  • 7,336
28 votes
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Would the Earth function the same spinning the other way?

That would have many consequences. For example the Coriolis force would change the sign. Thus wind around pressure systems would switch the direction from north and south hemisphere, but also the ...
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  • 1,663
28 votes
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Where is the calmest place on Earth?

The main resistance that winds have to their movements comes from the topography and surface obstacles. Therefore, as a general rule the closer to the surface the less wind you will find. But I guess ...
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27 votes
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Why is March colder than September in Northern Hemisphere?

The phenomenon is called seasonal lag. There's a more extensive answer elsewhere on this site but the basic idea is that temperature lags behind insolation by several weeks, because it takes time to ...
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26 votes

Why don't green house gases escape into space?

The reason the atmosphere (including GHGs) stays attached to the earth is gravity. This is called the Hydrostatic Equilibrium. There is one GHG that this does not fully apply to: water vapor. While ...
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23 votes

Would the Earth function the same spinning the other way?

Depending on the assumptions you make, the Moon would suddenly have a retrograde orbit. If the moon had a retrograde orbit, it would have tremendous consequences. Retrograde orbits tend to become less ...
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  • 331
23 votes

Why is the temperature *still* rising?

Your premises are flawed due to the lack of two critical details: Population rise; the sheer number of people on the planet that are consuming resources has risen to 7 billion people. Standard of ...
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  • 12.7k
23 votes
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Do satellites decrease the amount of solar radiation reaching Earth?

Does this huge collective quantity of objects (together with space trash) reflect away enough solar radiation to have a measurable effect? Could this affect Earth's climate, mitigating climate change? ...
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22 votes
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Does the strength of Earth's magnetic field influence its climate?

There is no significant geomagnetic influence on the cycle of glacials and interglacials. I think the easiest way to determine this is to consider geomagnetic reversals. A reversal obviously involves ...
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21 votes
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How will cloud feedback effects on the climate change as the result of global warming?

We don't really know. Climate models agree that the feedback is profound. Significant. Unfortunately, they do not agree about the magnitude of the feedback. Nor about the sign. The problem is ...
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20 votes
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What are the major differences between weather models and climate models?

The major differences between weather and climate models are many. At their core lie the same set of primitive equations, but from here there are many differences. A weather model only (skillfully) ...
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20 votes
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Did global warming cause the extreme cold 2013-14 winter in North America?

I bet you live on the eastern half of North America, which had a cold winter of 2013-2014, Europe and Alaska had a very warm winter, and China had its second warmest January. Jennifer Francis of ...
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  • 2,095
19 votes

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

The paper you linked lists as its first reference Volokin and ReLlez, 2014; a paper that addresses the magnitude of the Earth's greenhouse effect. The validity of the paper you found largely hinges on ...
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  • 3,294
19 votes
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What was the highest temperature ever recorded on the surface of Earth?

The record the article is referring about seems to be the same as registered at Guiness World Records: On 13 September 2012 the World Meteorological Organisation disqualified the record for the ...
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18 votes

If the earth is a globe, what causes temperature differences across lines of latitude?

Polar regions are colder than equatorial ones for a simple reason - geometry. More specifically, it is caused by the greater angle of the Sun's rays to the surface of the Earth. As you go farther ...
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18 votes
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What is the consensus among geologists about climate change being caused by humans?

First, a correction. Most climate scientists are climatologists rather than meteorologists. Climatology and meteorology, while related, are quite distinct sciences. Meteorologists and climatologists ...
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  • 20.2k
17 votes

Why is Europe warmer than North America at similar latitudes?

It is true that the Gulf Stream plays a role on the different climates of each region; I would not call it an 'urban legend' as Richard Seager and other scientists put it, however it seems that how ...
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  • 394
17 votes
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How good were climate models of the 1990s at predicting the global temperature trends of the 2000s/2010s?

You might take a look at the Technical Summary of the most recent IPCC Assessment Report (5). Thematic Focus Element #3 is "Comparing Projections from Previous IPCC Assessments with Observations&...
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  • 12.7k
17 votes
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Simple Climate Models that Predict Climate Change

It sounds like you are asking for a simple climate model that treats the globe as a homogeneous system. A Zero-dimensional energy balance model may be of interest (see this Penn State site ) which ...
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  • 12.7k
17 votes
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Looking for evidence against some points raised in Ivar Giaever's speech on climate change

Ivar's graph is mischievous in trying to imply that there should be an exact correlation. The global air temperature is not a good parameter to chart against CO2 emissions because the increasing heat ...
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17 votes

Why don't errors accumulate in climate models when the time horizon increases?

Error does accumulate in climate models out into the future -- that's why the forecasts include a range of possible results, that gets wider the further into the future you look. See, for instance, ...
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  • 1,340
16 votes

What are the major differences between weather models and climate models?

This answer is not complete, but it is a start. One of the most significant differences is: Weather models use measurements, whereas climate models do not Put another way: a weather model is an ...
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  • 11.1k
16 votes

Why do greenhouse gases affect ocean temperature so much?

No, greenhouse gases do not absorb infrared radiation from the sun... the Earth is really the source of infrared. The amount of infrared energy from the sun that reaches Earth is insignificant. ...
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  • 12.7k
16 votes

How to tell if a single day of weather is an anomaly or due to climate change?

I am interested in understanding how to tell if a single day of 'abnormal' weather is due to climate change or not. You can't. The day-to-day, locale-to-locale variations in weather are huge compared ...
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  • 20.2k
16 votes

Is global warming nonsense?

No, global warming is not nonsense, and if you are suspicious of the above 'graph' then you are acting wisely. Climate deniers, like flat Earthers, Biblical literalists and many more, use pseudo-...
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