Questions tagged [climate-change]

Climate change is a significant and lasting change in the statistical distribution of weather patterns. In public discourse, often used as a shorthand for the effects of anthropogenic global warming.

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

I found this image on reddit, and I'm wondering if this is real? Was this actually published over 100 years ago? Transcription: Science Notes And News COAL CONSUMPTION AFFECTING CLIMATE ...
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156 votes
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Did Donald Trump say that "global warming was a hoax invented by the Chinese"?

In the Presidential debate of 26th September, Hillary Clinton claimed that "Donald Trump said that global warming was a hoax invented by the Chinese" . Trump replied several times "I did not say that"....
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Do human activities contribute to climate change?

There is lots of evidence that I have seen showing correlation between human activities and climate change but what evidence is there to support causation?
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114 votes
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Are 19.6 pounds of CO2 produced from burning a gallon of gasoline?

According to the U.S. Energy Information Administration, About 19.6 pounds [8.89 kg] of CO2 are produced from burning a gallon of gasoline that does not contain fuel ethanol. About 12.7 pounds [5....
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104 votes
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Does the production of a Tesla battery produce as much CO2 as driving 200,000 km?

Recently I read on Greenpeace's website, that the production of a 100 kWh battery, as in the Tesla Model S, produces as much CO2 as driving a regular car for 200,000 km. Source: Tesla car ...
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84 votes
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Did NOAA publish a fake map with temperature data it doesn't have?

At the Deplorable Climate Science Blog, he claims that this map was published: When this is the reality The map above (the first map) is fake. NOAA has almost no temperature data from Africa, and ...
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82 votes
4 answers
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Do Milankovitch Cycles fully explain climate change?

The Milankovitch Cycles is the effect on the climate caused by variations in astronomical movements by the Earth relative to the Sun. A recent Natural News article attributes of the recent effects of ...
Velimir Tchatchevsky's user avatar
80 votes
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Have China and India more than doubled carbon emissions since 2000 while U.S. emissions have fallen?

The following meme has been shared circa Dec 2019 on social media and several blogs: The text reads: China's Carbon Emission Change Since 2000: +208% India's Carbon Emission Change Since 2000: +155% ...
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Was the 45.9°C temperature in France in June 2019 the highest ever recorded in France?

It was widely reported that on 28th June, 2019, a record temperature of 45.9°C was recorded in Gallargues-le-Montueux, France, breaking the previous 2003 record of 44.1°C. Sources: Metéo France, BBC, ...
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61 votes
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Did climate scientists in the 1980s predict a 1 meter sea level rise by now?

Stuart Agnew is a Member of the European Parliament for the Eastern Counties (in the UK) and stood on the UKIP ticket. His web site describes attending a global warming conference in the "mid-Eighties"...
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Does the ratio of ¹⁴C in the atmosphere show that fossil fuels are not the dominant cause of global warming?

I stumbled upon the following paper Skrable et al. (2022) The specific activity of ¹⁴C in the atmosphere gets reduced by a dilution effect when fossil CO₂, which is devoid of ¹⁴C, enters the ...
CuriousIndeed's user avatar
60 votes
6 answers
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Do beef farmed pastures net remove carbon emissions?

This viral image claims that an example beef farm with 130 cattle removes many tons of Carbon from the atmosphere every year. However it does not provide any sources. This image has been shared many ...
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Do 40% of U.S. Americans think that global warming is unproblematic since Christ will return soon?

Noam Chomsky states in a recent interview: One of the difficulties in raising public concern over the very severe threats of global warming is that 40 percent of the US population does not see why ...
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49 votes
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Does the logarithmic nature of global warming invalidate climate change claims?

NOTE It is rather unfortunate that I initially omitted the crucial part of the article I linked below (because the wording was stilted and confusing), and I was rather imprecise in my own claims. ...
Robert Harvey's user avatar
48 votes
3 answers
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Did the Arctic Ice Sheet grow by 60% from 2012 to 2013?

I came across this picture on Facebook. The image claims to have been taken from a NASA satellite. I am skeptical this is correct, and if it is, does it show the ice sheet has increased in size ...
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46 votes
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Can fracking help reduce CO2?

The Guardian reports that the UK fracking tsar, Natascha Engel, has resigned and blamed anti-fracking activism for "fear-mongering", saying: “There is much to be optimistic about how developing ...
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44 votes
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Has 90% of ice around Antarctica disappeared in less than a decade?

According to CNN, 90% of ice around Antarctica has disappeared in less than a decade. In the video, CNN Climate Correspondent, Bill Weir states: ... the ice around the continent was growing. In 2014,...
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Does a return economy-class seat between London and San Francisco release 5.28 tonnes of CO2 equivalents?

I took this self-survey of CO2 emissions run by the German Environment Agency. It computes for example that an economy class seat from London to San Francisco and back – about 22 hours flight &...
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40 votes
2 answers
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Are environmentalists largely responsible for Californian forest fires?

An article on Reason, and the associated video, claim that the severity of the recent forest fires are largely due to environmental regulations that prevent good forest management, along with an ...
Paul Johnson's user avatar
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38 votes
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Is Matt Ridley's assertion that the most extreme of the IPCC climate projections is based on very implausible assumptions correct?

Matt Ridley, the science writer who is often grouped with global warming skeptics and denialists despite asserting: man-made climate change is real but not likely to do much harm, let alone prove to ...
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38 votes
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Does a "mosquito line" exist, above which mosquitos do not travel?

Is there any scientific definition or evidence of such a thing as the mosquito line? My first apartment in Manhattan was on the 25th floor of the Park Row building in the Financial District. The ...
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37 votes
1 answer
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Were the emission savings of Greta Thunberg's trip by boat outweighed by crew flights?

Greta Thunberg sailed from England to New York in a yacht. Wikipedia explains: The trip was announced as a carbon-neutral transatlantic crossing serving as a demonstration of Thunberg's declared ...
Mathias711's user avatar
36 votes
4 answers
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Are we in a low CO2 period, compared to the last 590 million years?

In 2012 Burt Rutan, the aircraft designer, posted these slides summarizing his take on global warming/climate change. Slide 14 is In the big picture we are now in a low CO2 period. The 20th ...
Mike Dunlavey's user avatar
35 votes
1 answer
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Does it take 16 kg of CO2 equivalent to make two hamburgers?

Does it take 16 kg of CO2e to make two hamburgers? It seems an exaggeration It’s also worth putting the amount of carbon involved in having a Christmas tree in context. The Carbon Trust estimates ...
Sergey Zolotarev's user avatar
33 votes
2 answers
6k views

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

A recent BBC article says that the latest IPCC report says methane is responsible for 0.3°C out of 1.1°C of all cumulative warming since pre-industrial times. According to the IPCC, around 0.3C of ...
Sergey Zolotarev's user avatar
32 votes
2 answers
3k views

Did "global cooling" have as much scientific consensus as "global warming" has now?

it is projected that man's potential to pollute will increase 6 to 8-fold in the next 50 years. If this increased rate of injection... should raise the present background opacity by a factor ...
vartec's user avatar
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32 votes
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Is Donald Trump forcing the EPA to take down all climate change information?

According to the Independent article Donald Trump orders Environmental Protection Agency to delete all climate change information from its website The Trump administration is forcing the ...
Sklivvz's user avatar
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31 votes
7 answers
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Is it accurate to say that 97% of experts agree that global warming is anthropogenic?

A recent spate of newspaper headlines reported that 97% of scientists agreed with the theory of anthropogenic global warming (AGW). The UK's Daily telegraph reported: A review of 12,000 scientific ...
matt_black's user avatar
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31 votes
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Did Alexander Graham Bell write "the unchecked burning of fossil fuels would have a sort of greenhouse effect" in 1917?

Quoting from a clearly low-quality journal: In 1917 Alexander Graham Bell wrote. The unchecked burning of fossil fuels] would have a sort of greenhouse effect", and "The net result is the ...
Rebecca J. Stones's user avatar
31 votes
2 answers
4k views

Does this graph show climate-change predictions don't meet observations?

Dr. Roy Spencer, a climate change contrarian, posted this graph on his blog claiming that observed temperature trends are much lower than what climate models predict: Is Spencer misrepresenting what ...
James Christopher's user avatar
30 votes
2 answers
2k views

Does the phase-out of incandescent light bulbs measurably reduce overall electrical power consumption?

Many countries are phasing out incandescent light bulbs. For example, in the European Union, various types of classic light bulbs have been removed from the market in the last years. The claim is that ...
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29 votes
2 answers
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Did the US Climate Reference Network Show No New Warming Since 2005 in the US?

I believe most are aware of the difficulties on surface based temperatures. Gaps in thermometer placement and reliance on extrapolation, placement near HVAC unit, cities and other heat sources or ...
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28 votes
1 answer
1k views

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

This Politico article claimed in 2016 that Trump's organization submitted a permit request that cites climate change as the driving reason: The New York billionaire is applying for permission to ...
Daniel R Hicks's user avatar
28 votes
1 answer
1k views

Did fertilising the ocean with 100 tons of iron sulphate increase the salmon catch by over 100,000 tons?

In July 2012 American businessman Russ George, dumped 100 tonnes of iron in the ocean off British Columbia to encourage plankton growth and thus increase salmon stocks (link). It is now claimed that ...
ChrisJP's user avatar
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27 votes
3 answers
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Did we have a "global cooling" 40 years ago?

I was reading Superfreakanomics and the book argues that we had a global cooling period 40 years ago? Is that claim accurate?
Vinoth Kumar C M's user avatar
27 votes
1 answer
5k views

Does Susan Crockford have any scientific credentials related to polar bears?

A recent paper Internet Blogs, Polar Bears, and Climate-Change Denial by Proxy by a number of very well known climate campaigners/experts addresses some of the media controversy about the effect of ...
matt_black's user avatar
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26 votes
5 answers
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Does CO₂ cause Global Warming?

I know there is global warming, and I know that it is caused by human activity, but is carbon dioxide the cause of it? I read somewhere that apparently increase of CO₂ doesn't cause the increase in ...
Thursagen's user avatar
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26 votes
4 answers
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Is moderated livestock grazing an effective countermeasure for desertification?

In this TED talk from 2013, Allan Savory claims that livestock/cattle grazing (not industrial farming, but rather some frugal grazing of herds) help prevent and reverse desertification processes, ...
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26 votes
1 answer
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Was the number of forest fires in the Amazon in Summer 2019 considerably higher than usual?

This picture made the rounds in summer 2019, supposedly showing the areas affected by rainforest fires in Brazil (and other countries) right now. Of course it looks very bad and I'm pretty sure it is. ...
user622505's user avatar
25 votes
3 answers
3k views

Will global warming reduce available oxygen?

I saw a friend "like" this news article on Facebook which claims that phytoplankton would stop oxygen production: "If the world’s oceans warmed by 6 degrees Celsius—a realistic possibility if ...
Chad's user avatar
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24 votes
3 answers
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Does global warming trap as much heat as 600,000 Hiroshima-class bombs every day?

In January 2023, in an interview at the World Economic Forum, former US Vice President Al Gore claimed that we're adding the equivalent of 600,000 Hiroshima bombs every day in heat to the atmosphere: ...
enorl76's user avatar
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23 votes
2 answers
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Is the world warmer now than during the Medieval Warm Period?

Climate change seems to polarise comment into denialists and believers. But good skeptics should be able to address specific issues with the data without falling into the anti-science denialist camp. ...
matt_black's user avatar
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23 votes
1 answer
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Did Elon Musk's bitcoin transactions release more carbon in a few days than the amount saved by all Teslas ever sold?

In The Guardian, on May 29, 2021, Adam Greenfield writes: Elon Musk’s recent large-scale transactions in proof-of-work-based Bitcoin released more carbon into the atmosphere in just a few days than ...
krubo's user avatar
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22 votes
3 answers
3k views

Is climate close to a "tipping point"?

James Hansen has long used the idea of a climate tipping point in his public arguments for urgent and drastic action to combat climate change (For an extended exposition of his idea, see a pdf of one ...
matt_black's user avatar
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22 votes
3 answers
5k views

Is animal agriculture responsible for more greenhouse gas emissions than transportation?

Animal agriculture is responsible for 18 percent of greenhouse gas emissions, more than all transportation combined. By http://www.cowspiracy.com/facts/ from Fao.org. Spotlight: Livestock impacts on ...
David Mulder's user avatar
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22 votes
1 answer
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Is a billion dollar lobbying campaign primarily responsible for opposition to climate policy?

A recent article in arstechnica reports that there is a large flow of funding from some conservative groups to a network of climate denying think tanks and lobbyists. The article Reports how work by ...
matt_black's user avatar
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21 votes
2 answers
6k views

Are the 16 scientists who claim that climate change is not something to worry about climate scientists?

This is a pretty specific question – in the Wall Street Journal article dated January 27, 2012 entitled "No Need to Panic About Global Warming. There's no compelling scientific argument for drastic ...
Brian M. Hunt's user avatar
21 votes
2 answers
2k views

Do active volcanoes emit more CO₂ than humans?

We all know that volcanoes emit a tremendous amount of CO₂ when they erupt. I've often heard people argue that the amount of CO₂ an erupting volcano emits dwarfs the amount of CO₂ that humans emit in ...
Javid Jamae's user avatar
21 votes
1 answer
4k views

Does unadjusted NASA climate data show no long-term global warming?

The Real Science blog by "Steven Goddard" claims that NASA have altered their data in the USA and other countries to show global warming. Right after the year 2000, NASA and NOAA dramatically ...
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20 votes
1 answer
2k views

Did the development of agriculture prevent an ice age occurring?

The television program How the Earth Made Us has argued that the development of agriculture prevented a new ice age, due to methane production from livestock, and the burning of natural vegetation for ...
Golden Cuy's user avatar