Questions tagged [climatology]

The study of weather conditions and patterns as averaged over a given period of time.

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149
votes
7answers
19k views

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?
20
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2answers
2k views

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 ...
31
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2answers
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 ...
13
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1answer
1k views

Are the IPCC climate change models overestimating sensitivity to carbon dioxide?

A recent report in The Register suggests that we might be currently overestimating the degree to which the world will warm with increasing carbon dioxide. Climate sensitivity is, crudely, the slope of ...
48
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4answers
13k views

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. ...
27
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3answers
2k views

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?
18
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3answers
1k views

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 ...
31
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7answers
5k views

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 ...
15
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2answers
805 views

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 ...
9
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2answers
4k views

Did the Earth have so little oxygen that dinosaurs couldn't exist?

Noted Young-Earth Creationist Kent Hovind made a claim in a 2007 video that suggested that the idea of dinosaurs living on Earth millions of years ago was implauseable if the oxygen levels were the at ...
14
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4answers
3k views

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. This is ...
12
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1answer
830 views

Could global warming lead to an oxygen shortage by 2100? [duplicate]

In this report of a mathematical model (original paper here) about the response of ocean plankton to climate change, its author claims the following: By 2100, the earth at sea level could have ...
3
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2answers
313 views

Does Carbon Dioxide mix well in the atmosphere?

At Skeptical Science, they explain: Mauna Loa is often used as an example of rising carbon dioxide levels because its the longest, continuous series of directly measured atmospheric CO₂. The reason ...