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All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.

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Climate Hustle

Global cooling - Is global warming still happening?

What the science says...

Select a level... Basic Intermediate

All the indicators show that global warming is still happening.

Climate Myth...

It's cooling
"In fact global warming has stopped and a cooling is beginning. No climate model has predicted a cooling of the Earth – quite the contrary. And this means that the projections of future climate are unreliable." (source: Henrik Svensmark)

When looking for evidence of global warming, there are many different indicators that we should look for. Whilst it's natural to start with air temperatures, a more thorough examination should be as inclusive as possible; snow cover, ice melt, air temperatures over land and sea, even the sea temperatures themselves. The key indicators of global warming shown below are all moving in the direction expected of a warming globe.


Indicators of a warming world based on surface, satellite, and ocean temperature measurements, satellite measurements of energy imbalance (the difference between incoming and outgoing energy at the top of the atmosphere), and of receding glaciers, sea ice, and ice sheets, rising sea level, and shifting seasons.

The question of global warming stopping is often raised in the light of a recent weather event - a big snowfall or drought breaking rain. Global warming is entirely compatible with these events; after all they are just weather. For climate change, it is the long term trends that are important; measured over decades or more, and those long term trends show that the globe is still, unfortunately, warming.

Basic rebuttal written by LarryM


Update July 2015:

Here is the relevant lecture-video from Denial101x - Making Sense of Climate Science Denial

Last updated on 5 July 2015 by skeptickev. View Archives

Printable Version  |  Offline PDF Version  |  Link to this page

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Update

On 21 January 2012, 'the skeptic argument' was revised to correct a minor formatting error.

Comments

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Comments 301 to 305 out of 305:

  1. More inconvenient facts for Sam to digest...

    As the world warms, the weather is changing in ways far more dramatic than a little extra heat there, a little less rain there.

    Entire weather patterns are shifting, and we're already seeing the results in Australia this autumn.

    First up, some dramatic statistics to illustrate the unprecedented Australian temperature anomalies being experienced in Australia this month. Then we'll hear from an expert on why it's happening.


    • Sydney is a whopping 4.9 degrees above average for May. Sydney's average May daily maximum temperature is usually 19.5. The average is 24.3 degrees so far this month.

    • One more time for emphasis, Sydney is almost FIVE DEGREES ABOVE AVERAGE for a whole month. Wow.

    • In fact, the Sydney maximum has topped 20 every day in May so far. Tuesday hit 28. The COLDEST day of the month was 1.3 degrees ABOVE the average.

    • Hot streaks do not usually last this long. Not even close.

    • Melbourne temperatures are also way up this month. It's May 2016 average of 20.3 degrees (to date) is 3.6 degrees above the long term May daily average of 16.7.

    • It's a similar picture across Australia. Canberra is nearly four degrees above average so far this May, Hobart and Brisbane three degrees, Adelaide nearly two degrees, and Darwin and Perth both one degree.

    • The fact that it's much warmer than usual across Australia is very much in keeping with the long term Australian trend (depicted below), as well as global data showing that the world just had its hottest ever seven months — and its hottest April by a huge margin.


    Sydney And Melbourne Copping Record May Heat. The Reason Why Is Scary by Anthony Sharwood, Huffington Post Australia, May 17, 2016

  2. John Hartz @301, the article was written on May 17th, and therefore was grotesquely exagerrating when it says, "Sydney is almost FIVE DEGREES ABOVE AVERAGE for a whole month".  That may yet be the case, although that is unlikely.

    Response:

    [DB] A note to all participants:  'sam' has recused himself from further participation here, finding the burden of complying with this venue's Comments Policy too onerous.

  3. Concerning Vietnam's mid-winter snows @298, I did think to have a quick look into GHCN data to check out the most recent winter temperatures. Cao Bang was the station I hit upon, in the hills north of Hanoi at 800ft altitude. The NOAA data (spoilt a bit by an evident data entry error for Jan 2016) shows January 2016 was colder than recent years for its Mean Min Temp (colder than 2011 but not as cold as 1963). The data does show Januarys have been getting colder over the last few years (still not as cold as the 1960s) but the winters have also been getting shorter with Novembers & Marchs getting warmer.

    The NOAA data also gives Lowest Min Temp for each month, so we can see at 800ft we come very close to the snow line in January with lowest temperatures dropping below 40ºF in half the Januarys (dropping to 32.7ºF in 2014, & below freezing in 1995). Mid-winter snowfall higher up in the mountains of Vietnam thus should be quite normal.

  4. Where do I find your video experiment with the black color solution that was added to water in a glass container to show the amount of CO2?

  5. plato525 @304, here is the video I think you have in mind:

    I am not sure as to whether there is or not a SkS blog post discussing this video.

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