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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23 votes
1 answer
1k views

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 ...
18 votes
2 answers
5k views

Are global wildfires decreasing?

According to the World Health Organization, Climate change is directly contributing to humanitarian emergencies from heatwaves, wildfires, floods, tropical storms and hurricanes and they are ...
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 ...
82 votes
4 answers
16k views

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 ...
61 votes
3 answers
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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 ...
12 votes
1 answer
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Do CO₂ emissions need to be cut to near zero to stop global temperatures rising?

In Bill Gates' 2010 TED talk, Bill Gates: Innovating to zero! [YouTube], Gates mentions that he has asked the top scientists on this several times: Do we really have to get down to near zero? Can't ...
44 votes
1 answer
10k views

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,...
12 votes
3 answers
5k views

Has natural gas "reduced carbon emissions from power generation by 38%" in Ohio?

On January 6, Ohio Gov. Mike DeWine signed legislation that legally defined natural gas as a source of "green energy." In a January 10 opinion piece U.S. representative Troy Baldwin (of Ohio)...
24 votes
3 answers
7k views

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: ...
6 votes
0 answers
356 views

Is 70% of the world economy weather-sensitive?

Several sources make varying claims that 70% of the global economy is sensitive/dependant on the weather: Frogcast: Participative fundraising 70% of the world economy is weather sensitive. JOM: ...
9 votes
1 answer
655 views

Is Amazon powered by 85% renewable energy?

In a video on the TED YouTube channel, Chris Roe, Amazon's director of energy and sustainable operations, makes a claim that Amazon is powered by 85% renewable energy. I suspect 85% is too optimistic ...
7 votes
1 answer
312 views

Did increased global methane emissions in 2017 come from cattle farming?

In a 2017 press release, Don’t blame cattle – it’s humans who caused methane levels to skyrocket., Robert Howarth, Professor of Ecology and Evolutionary Biology at Cornell University claims that there ...
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 ...
4 votes
4 answers
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Is offshore wind 9 times cheaper than fossil fuel?

The claim: "Offshore Wind in the U.K. Is 9 Times Cheaper Than Fossil Fuels" Yahoo news version The source from the article: Carbon Brief: Record-low price for UK offshore wind is nine times ...
12 votes
1 answer
766 views

Do McKitrick's criticisms of the IPCC accurately represent their processes?

Whatever your position on climate change the most significant results about the scientific consensus are supposed to emerge from the International Panel on Climate Change (the IPCC). It is an ...
2 votes
2 answers
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Did the "The Hampshire Advertiser" publish an article about many droughts in Europe on Saturday July 17 1852?

Craig Kelly, an Australian Politician, shared this photo on Facebook in the context of global warming and climate change. The article contains dates of droughts and "excessive heat" during the ...
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, ...
9 votes
1 answer
641 views

Is the equivalent of 2000 American football fields lost every hour due to drought and desertification?

BBC states the following Approximately 12 million hectares (46,000 sq miles) are lost around the world each year as a direct consequence of drought and desertification. That's the equivalent of 2,000 ...
5 votes
1 answer
439 views

Have greenhouse gas emissions from Australian red meat production fallen nearly 60% since 2005?

The BBC is reporting that Meat and Livestock Australia (MLA) is reporting that "greenhouse gas emissions from the industry have fallen by almost 60% since 2005". This seems to be from the ...
29 votes
2 answers
13k views

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 ...
38 votes
3 answers
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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 ...
12 votes
2 answers
3k views

Are fossil fuels making the world greener?

The popular understanding (at least among those who are not climate skeptics) of global warming is that it is likely to create environmental catastrophe for reasons such as spreading deserts and ...
5 votes
1 answer
635 views

Do Lufthansa's Compensaid schemes make flights carbon-neutral?

My employer recently announced that all outbound flights will be carbon neutral due to a recent program of our preferred airline. Lufthansa's Compensaid claims that With our reliable partner ...
27 votes
1 answer
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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 ...
10 votes
3 answers
677 views

Has non-TSI solar output increased over the past century in ways the IPCC climate models ignore?

Prof. Nir Shaviv, an American-Israeli astrophysicist, who argues against Anthropomorphic Global Warming, wrote (6 years ago): As an astrophysicist, I see that the scope of solar effects considered by ...
22 votes
3 answers
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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 ...
22 votes
3 answers
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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 ...
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 ...
11 votes
1 answer
896 views

Do the lifetime emissions of 'three and a half Americans' kill 'one person'?

On 29th July 2021, Nature published a paper titled "The Mortality Cost of Carbon" and many publications have repeated a rather sensational part of the abstract of the paper (emphasis added): ...
14 votes
4 answers
2k views

Is burning 1ha of grassland more environmentally damaging than 6000 cars?

In this video, around 10:50 Minutes, Allan Savory claims that: Now, if it does not decay biologically, it shifts to oxidation, which is a very slow process, and this smothers and kills grasses, ...
3 votes
1 answer
372 views

Have Australia's emissions fallen to the lowest level since 1990

The Liberal Party of Australia posted a claim on Facebook that Australia's emissions have fallen to the lowest level since 1990. Is this accurate? Below is a screenshot of the Facebook post, and ...
3 votes
1 answer
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Are the Australian bushfires in the same path as a proposed high speed rail line?

Is it true that a proposed high-speed rail line is in the path of the brushfires? Source: https://noagendasocial.com/@AdamAtSea/103473125309193160 Also: https://firms.modaps.eosdis.nasa.gov/map/
5 votes
1 answer
369 views

Will renewable energy strategies generate a net increase in jobs?

In the battle against climate change we often hear that new renewable energy programs will generate a large number of new jobs. At the recent Paris Climate summit Boris Johnson said that a green ...
12 votes
1 answer
917 views

Does sending an email have a carbon footprint of 0.3g to 50g CO2e?

The carbon footprint, in carbon dioxide equivalent, of sending an email message, has been estimated at 0.3 gCO2e for a spam email, 4 gCO2e for a "proper email", and 50 gCO2e for an "email with long ...
7 votes
1 answer
893 views

Publication Bias in Climate Sensitivity Estimates

It is claimed by Rickova and Irsova, in a paper titled "Publication Bias in Measuring Climate Sensitivity" [A], that: We present a meta-regression analysis of the relation between the ...
40 votes
2 answers
9k views

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 ...
3 votes
1 answer
550 views

Are there currently more large fires in Africa and South America than the rest of the world?

This has been doing the rounds on Twitter: NASA fire map shows the absolute failure of mainstream media for not expressing how devasting fires in southern Africa and South America are. Certainly to ...
4 votes
1 answer
2k views

Is there a 10% chance of 6-10°C of warming this century?

From a 2016 The Atlantic article, Human Extinction Isn't That Unlikely: UN-approved climate models estimate that the risk of six to ten degrees Celsius of warming ... “On a more plausible emissions ...
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. ...
12 votes
1 answer
4k views

Do termites produce 10 times more CO2 than humans?

On October 21 2019 Australian Federal MP Malcolm Roberts posted an image to his Facebook feed claiming termites produce 10 times more CO2 than humans in a year. Is there a factual basis to this? ...
2 votes
1 answer
470 views

Is climate change causing jellyfish to wash up on the beach?

The following article Thousands of Venomous Portuguese Man O’ Wars Wash Ashore in Australia: ‘It Was the Stuff Of Nightmares’ details an event where a large number of a jellyfish creatures washed up ...
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 ...
3 votes
3 answers
2k views

Why did the value for "average surface temperature of Earth" change from 15°C to 14°C in some scientific literature concerning climate change?

I recently stumbled across an article from a global warming skeptic stating that the "average surface temperature of Earth" changed from 15°C to 14°C in some scientific literature concerning climate ...
7 votes
1 answer
352 views

Did British homes increase greenhouse gas emissions by 4% in 2018?

According to this report from The Times, Greenhouse gas emissions fell in every sector — including transport, industry and energy — in 2018, but emissions from homes went up 4 per cent, government ...
80 votes
3 answers
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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% ...
2 votes
1 answer
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Do Swedes believe climate change spending to be the biggest waste of taxpayer money in 2019?

Yesterday, Breitbart claimed: The Swedish public has voted that climate change spending has been the biggest waste of taxpayer money in 2019, according to a poll by the Swedish Taxpayers' ...
46 votes
3 answers
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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 ...
31 votes
2 answers
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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 ...
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 ...
9 votes
2 answers
6k views

Do cows contribute more to atmospheric warming than cars?

In this article and many others, I read that cows are contributing to the climate change more than cars in releasing CO2. A United Nations report has identified the world's rapidly growing herds ...