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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193
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1answer
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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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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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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....
80
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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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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 ...
66
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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, ...
59
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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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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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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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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. ...
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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 ...
48
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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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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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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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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 skeptics of warming and denialists despite asserting: man-made climate change is real but not likely to do much harm, let alone prove to be ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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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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 ...
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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 ...
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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?
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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 ...
26
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Is the current number of forest fires in the Amazon right now considerably higher than usual?

There is this picture making the rounds right now, 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 ...
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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 ...
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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 ...
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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. ...
24
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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 ...
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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 ...
22
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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 ...
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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 ...
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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 ...
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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 ...
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Have global surface temperatures not shown significant warming since the late 1990s?

Those skeptical about the science of global warming have frequently alleged that the surface temperature record has "paused" since about 1998 and showed no significant warming trend (see this recent ...
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Has global mean temperature at sea level increased since 1900?

It is generally accepted that the Earth's global mean (average) temperature has varied throughout history. Given the difficulties of accurately measuring and calculating temperatures across the ...
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Will most tropical and temperate areas be uninhabitable with a 5 degree increase in temperature?

I've seen this image circulated on message boards a few times, and I'm wondering if it has any scientific basis. Red is uninhabitable land, and green is all that is left after a global rise of 5°...
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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 ...
19
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Is the United Kingdom funding forced sterilization in India to combat climate change?

The claim is made here: Tens of millions of pounds of UK aid money have been spent on a programme that has forcibly sterilised Indian women and men [...] Yet a working paper published by the ...
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Could Global Warming be good for life?

A paper from Nature Geoscience (reported by the BBC here) claims that the carbon dioxide humanity has pumped into the atmosphere is holding off a new Ice Age. This has revived an old idea best ...
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Would avoiding the eating of meat stop global warming? [duplicate]

Possible Duplicate: Is being a vegan more environmentally friendly than otherwise? Would it be sufficient for people to stop eating meat to stop global warming? I've heard that the process to ...
17
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Is the restoration of peat bogs an effective way to slow down human-made climate change?

The Finnish carbon sink project Hiilipörssi ("carbon exchange") has this tagline on their English information page: Did you know that restoring peatlands is one of the most cost-effective ways to ...
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What are the greatest successes of long term climate prediction?

Seth Roberts claims that the field of climate modelling hasn't produced models that have effectively predicted future climate events. According to him the models are only validated on past data. Is ...
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Do wind farms have a significant impact on weather patterns in the US?

On my way in to work today there was a guest on the radio claiming that the "Heat Dome" was the result of the disturbance of natural wind patterns by the windfarms that have proliferated the ...
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Are global temperatures cooler in 2017 than 2007?

The Global Warming Policy Forum claimed (9-Aug-2017): An inconvenient truth: Global temps were warmer when Al Gore won the 2007 Nobel Prize than today, even after the 2015/16 super El Nino. ...
14
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Will melting icecaps and glaciers cause the ocean to rise?

I often hear people claim "global warming will cause the ice-caps to melt, and that will cause the water levels in the ocean to rise, and that will cause major world-wide flooding." Now, ignoring the ...
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Have 400 scientific papers been published in 2017 which cast doubt on Anthropogenic Climate Change?

This article posted on the Climate Change Dispatch website makes the claim: During the first 10 months of 2017, 400 scientific papers have been published that cast doubt on the position that ...
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Whose account of the response to Michael Mann's original “hockey stick” analysis is correct?

New York has filed a lawsuit against several Big Oil firms on the grounds that they fomented contrarian opinion to undermine some findings in climate science. In one part of the suit they claim the ...