276 votes

Are 19.6 pounds of CO2 produced from burning a gallon of gasoline?

This is directly addressed by the US Department of Energy at FuelEconomy.gov: It seems impossible that a gallon of gasoline, which weighs about 6.3 pounds [2.9 kg], could produce 20 pounds [9.1 kg] ...
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  • 132k
271 votes
Accepted

Is this news article from 1912, essentially explaining climate change, real?

Yes, it was a real article printed in 1912. Although that image of the article seems to have been spliced together so that the paper's name, section, and article are all in one neat little frame, ...
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  • 11.4k
201 votes
Accepted

Did Donald Trump say that "global warming was a hoax invented by the Chinese"?

He did write this on his twitter feed[archived] The concept of global warming was created by and for the Chinese in order to make U.S. manufacturing non-competitive. See also politifact: Yes, ...
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  • 50.5k
172 votes
Accepted

Do Milankovitch Cycles fully explain climate change?

The articles try to do some sleight-of-hand poorly. It goes on at great length about the accepted Milankovitch cycles (mostly taken straight from the NASA article, the same agency which is supposed to ...
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  • 11.1k
166 votes

Did NOAA publish a fake map with temperature data it doesn't have?

This claim is complete and utter bollocks. Let's start with the obvious. If map A has some data on it, and map B doesn't, that in no way indicates that map A is fake - even if data is marked as '...
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  • 54.2k
159 votes
Accepted

Did NOAA publish a fake map with temperature data it doesn't have?

tl;dr: The supposedly fake map is composed of multiple sources of data, averaged over larger areas of the Earth and a longer period of its history. The map labelled as "the reality" shows just one of ...
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  • 5,943
156 votes

Have China and India more than doubled carbon emissions since 2000 while U.S. emissions have fallen?

The gross emissions numbers are essentially accurate Here's a chart from the U.S. Energy Information Administration: The World Bank and the International Energy Agency have similar values, but ...
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  • 9,007
116 votes
Accepted

Are environmentalists largely responsible for Californian forest fires?

Are environmentalists responsible for Californian forest fires? No. It was environmentalists (by which I mean people who professionally study forest ecology or environmental science) who have tried ...
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  • 11.2k
113 votes
Accepted

Does the production of a Tesla battery produce as much CO2 as driving 200,000 km?

tl;dr: The claimed range is 50% higher than the worst assumptions for battery production, and 500% higher than the best assumptions. But it's not an apples to apples comparison. Carbon emissions ...
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  • 9,007
98 votes
Accepted

Did the US Climate Reference Network Show No New Warming Since 2005 in the US?

No, the USCRN is not sufficient to provide evidence of any discernible trend The linked article says "as shown in the graph below," and provides this image: This chart plots monthly data points, ...
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  • 9,007
96 votes
Accepted

Do beef farmed pastures net remove carbon emissions?

No. This is not really an infographic that is truthful. It is 'anecdotal evidence' evidence for one farm, very probably not true for that very farm, and in any case a misleading oversimplification. ...
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  • 42.9k
92 votes
Accepted

Did climate scientists in the 1980s predict a 1 meter sea level rise by now?

The 24 October 1983 report Projecting Future Sea Level Rise: Methodology, Estimates to the Year 2100 , 2nd edition, predicted (mid-range scenario, see table 4.1 on page 39): by 2000: 8.8-13.2 ...
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  • 96.4k
87 votes

Did Donald Trump say that "global warming was a hoax invented by the Chinese"?

Yes, he absolutely said that. You can still read it on his Twitter feed, in fact, where in November of 2012 he said: The concept of global warming was created by and for the Chinese in order to ...
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  • 2,478
86 votes

Can fracking help reduce CO2?

If it replaces coal mining for power production, fracking reduces CO2 emissions, but that's not the whole story. Burning anything results in increased CO2 emissions, and methane leaks in fracked gas ...
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  • 9,007
86 votes
Accepted

Was the 45.9°C temperature in France in June 2019 the highest ever recorded in France?

The 1930 measurement was taken incorrectly. The claim was also made in domestic newspapers at the time, including L'Express du Midi: 50° AU SOLEIL A SAINT-ETIENNE Saint-Etienne, 27 août. Le ...
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  • 11.1k
85 votes

Does the logarithmic nature of global warming invalidate climate change claims?

Yes it is logarithmic (although relative to amount of CO2 in a sample volume of gas, not its concentration). No that doesn't invalidate climate change. If you want to read a detailed explanation for ...
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  • 1,171
84 votes
Accepted

Were the emission savings of Greta Thunberg's trip by boat outweighed by crew flights?

The Daily Mail words their claim as follows: [The yacht skipper Nikki] Henderson's flight from Britain to the US likely produced the same amount of emissions the journey hoped to save, countering Ms ...
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  • 38.4k
75 votes
Accepted

Do 40% of U.S. Americans think that global warming is unproblematic since Christ will return soon?

The 40% figure most likely comes from Pew Research Center: By the year 2050, 41% of Americans believe that Jesus Christ definitely (23%) or probably (18%) will have returned to earth. The ...
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  • 50.5k
73 votes

Does a return economy-class seat between London and San Francisco release 5.28 tonnes of CO2 equivalents?

Water vapor is indeed the most important greenhouse effect contributor.(Ref. 1) It is usually not showing up in climate change discussions because mankind basically has no way of directly affecting ...
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  • 18.8k
70 votes

Does the production of a Tesla battery produce as much CO2 as driving 200,000 km?

In addition to all the other great answers there is one very important fact that's always ignored in these comparisons (Google translation, lightly corrected by me): The total emissions of petrol ...
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  • 679
46 votes
Accepted

Is methane responsible for nearly one-third of all global warming to date?

Yes, this seems to be (approximately) true. According to this paper from 2016. The total radiative forcing due to changes in the carbon dioxide concentration is roughly 1.6 watts per square meter (see ...
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  • 964
45 votes

Have China and India more than doubled carbon emissions since 2000 while U.S. emissions have fallen?

The first point of the question about the actual emissions statistics has already been answered but let me add some information relevant to the second point Secondarily, is it the implied claim that ...
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  • 537
39 votes

Did climate scientists in the 1980s predict a 1 meter sea level rise by now?

The conference would have presumably been organized by the Climate Research Unit. They have published proceedings for similar conferences going back to at least 1973. It would be ideal to track down ...
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  • 7,049
38 votes
Accepted

Did Alexander Graham Bell write "the unchecked burning of fossil fuels would have a sort of greenhouse effect" in 1917?

TL;DR: Alexander Graham Bell was concerned with fossil fuels running out, but not climate change per se. Bell was concerned about the inevitable depletion of fossil fuels — “What shall we do when we ...
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  • 1,428
37 votes
Accepted

Did the Donald Trump organization cite "rising sea levels due to climate change" in a permit request in Ireland?

Evidence TIGL Ireland Enterprises Ltd (authorized to trade legally as "Trump International Golf Links & Hotel Ireland", among other names) submitted a planning application (ref: 16371) to Clare ...
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  • 486
36 votes

Do termites produce 10 times more CO2 than humans?

Leaving aside the fact that termite CO2 production is on few, if any, secondary school syllabuses, its more complicated than that. Termites are not burning fossil fuels. The carbon they produce comes ...
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  • 15.7k
35 votes

Does the logarithmic nature of global warming invalidate climate change claims?

No, it is not true that it invalidates climate change claims, or the need to limit further increases in CO2 concentration specifically as it relates to warming (we can ignore stuff like ocean ...
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  • 9,389
34 votes
Accepted

Have 400 scientific papers been published in 2017 which cast doubt on Anthropogenic Climate Change?

Summary: The claim is misrepresenting real scientific work. I skimmed 13 articles taken from the list of 400. Of those 13, 2 were probably never peer reviewed and should not be considered ...
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