Archive for the ‘climate’ Category

Here’s another guest post from Ed Hoskins. This one deals with the IPCC’s own figures fro the effect of CO2 on global tamperature, demonstrating that due to the logarithmic limitation as this trace gas increases, future warming will be limited to within beneficial limits.

The diminishing influence of increasing Carbon Dioxide CO2 on temperature
Ed Hoskins MAarch (Cantab)  BDS (Lond).

The temperature increasing capacity of atmospheric CO2 is theoretically plausible, but its influence is known and widely accepted to diminish as its concentration increases. It diminishes logarithmically with increasing concentration.

Global Warming advocates and Climate Change sceptics both agree on this. IPCC Published reports, (TAR), acknowledge that the effective temperature increase caused by growing concentrations of CO2 in the atmosphere radically diminishes with increasing concentrations. This information has been presented in the IPCC reports. It is well disguised for any lay reader, (Chapter 6. Radiative Forcing of Climate Change: section 6.3.4 Total Well-Mixed Greenhouse Gas Forcing Estimate) [i].

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Ole Humlum: Climate Indices November Analysis

Posted: December 20, 2014 by tallbloke in Analysis, climate
Tags:

Ole Humlum, one of the PRP contributors, has emailed me the climate4you November roundup of global temperature records and other climate metrics from the various providers. Clear analysis with informed commentary, the full document is available here.

ole-humlum-nov14

BBC News – Arctic sea ice volume holds up in 2014

Posted: December 15, 2014 by oldbrew in climate, sea ice
On tour in the Arctic [credit: US Navy]

On tour in the Arctic
[credit: US Navy]

Now that the so-called ‘climate summit’ is out of the way, the BBC finds itself forced to admit that reports of the impending death of Arctic sea ice were greatly exaggerated. There’s even talk of ‘modest growth’ – shock horror!

Arctic sea ice may be more resilient than many observers recognise.

While global warming seems to have set the polar north on a path to floe-free summers, the latest data from Europe’s Cryosat mission suggests it may take a while yet to reach those conditions.

[Straw-clutching going on there?]

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Ferenc Miskolczi

Well here’s a nice surprise. Out of the blue, Dr Ferenc Miskolczi has dropped a link onto Tim Channon’s thread, which goes to his major new paper, published by the SEI. So we are privileged to be among the first to read it and start a discussion. It challenges the entire basis of the IPCC AGW theory by deriving a theoretical atmosphere which fits observations and demonstrates stability of the Earth’s radiative balance. Thanks Ferenc!

Ferenc Mikolczi 2014 Abstract

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Forster_PiersWithout comment, an extract from a Guardian piece:

Prof Piers Forster, at the University of Leeds, led a project using in-computer models to assess six types of SRM (Solar Radiation Management). All reduced temperatures but all also worsened floods or droughts for 25%-65% of the global population, compared to the expected impact of climate change:

  • mimicking a volcano by spraying sulphate particles high into the atmosphere to block sunlight adversely affected 2.8bn people
  • spraying salt water above the oceans to whiten low clouds and reflect sunlight adversely affected 3bn people
  • thinning high cirrus clouds to allow more heat to escape Earth adversely affected 2.4bn people
  • generating microbubbles on the ocean surface to whiten it and reflect more sunlight adversely affected 2bn people
  • covering all deserts in shiny material adversely affected 4.1bn people
  • growing shinier crops adversely affected 1.4bn people

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The BBC’s Roger Harrabin reports on a Royal Society report into the Somerset flooding (with a straight face). We covered this extensively as it happened last winter

somerset-flood-updateThe authors of a Royal Society report on resilience to extreme weather have told BBC News that they believe the campaign to protect the Levels prompted politics to override science.

They say those resident on the Levels may have to get used to living with floods, and they question whether investment to protect farmland is the best use of public money.

“These so-called experts haven’t got a clue what they are talking about. We are used to being flooded – but we don’t expect to get ignored for so long”

James WinsladeSomerset farmer

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Reposted from Reform.co.uk

Energy policy and the return of the State
Rupert Darwall

RupertDarwallEnergy policy represents the biggest expansion of state power since the nationalisations of the 1940s and 1950s and is on course to becoming the most costly domestic policy disaster in modern British history. By committing the nation to high cost, unreliable renewable energy, its consequences will be felt for decades to come. Energy is an iceberg policy: its implications for the demise of a competitive market in electricity – the final achievement of the Thatcher years – are poorly understood and tend to be consigned to footnotes and annexes of policy documents.

Like its predecessor, the Coalition Government has three policy objectives:

Keeping the lights on;
Keeping energy bills affordable; and
Decarbonising energy generation.

These do not require the policies the Government is implementing. Indeed, energy policy militates against having cheap, reliable energy. Worries about the lights going out have intensified as the country becomes more dependent on the weather for its electricity. The market is the best way of providing reliable and affordable electricity. Converting the electricity system to wind and solar power does neither. Even on favourable assumptions, these are inefficient ways of reducing carbon dioxide emissions.

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Future low solar activity periods may cause cold winters in North America, Europe and Russia.
Jarl Ahlbeck – Abo Akademi University, Finland

Historically, low solar activity periods like the Dalton and Maunder Minima have been connected to cold winters in Europe. It seems very possible that the low solar activity forced areas of low pressures into a southern route or caused a negative Arctic Oscillation, AO, which in turn allowed cold air from the North Pole to flow across Europe. But can we obtain from real measurements that low solar activity really is able to do that?

temp-turku-AO

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HT to the Hockeyschtick for spotting this essay from Marine Biologist Walter Starck at Quadrant Online. More scientists are coming out to call the alarmist position for what it is.

Walter Starck: The Climate Scam’s Meltdown

uksnowiceThe rent-seekers, opportunists, third-rate academics, carbon-market scam artists and peddlers of catastrophic prophecy can see the alarmist bubble deflating, so they’re trying harder than ever to sustain the scare. Problem is, Mother Nature isn’t cooperating.

This doesn’t mean the climate change “debate” will stop, the news media will cease reporting weather as a dire threat, or that the true believers will no longer be obsessed by it. However, the ultimate arbiter, climate itself, has made clear its decision by ceasing to warm for over 18 years. Despite the ongoing use of fossil fuels, a proclaimed 95% certainty of 97% of scientists and the high-powered projections of the world’s most advanced climate models, the climate has refused to pay the slightest heed.

Contrary to all the confidence and predictions of alleged experts, storms are no more intense nor frequent, while droughts, floods and sea levels have declined to confirm alarmists’ barely concealed hopes of disasters. The simple fact is that the alleged experts and their high-powered models were wrong. The climate has ceased to warm and, with little or no [enhanced] greenhouse warming, the entire theory of Catastrophic Anthropogenic Global Warming (CAGW), aka Climate Change (CC), aka Global Warming, aka Extreme Weather, is left with no basis.

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This article caught my eye because Isaac Held stuck his oar in. Talkshop readers will have a field day with this I think.

Researchers show that a canonical view of global warming tells only half the story.
Genevieve Wanucha | Program in Atmospheres Oceans and Climate
November 10, 2014

In classrooms and everyday conversation, explanations of global warming hinge on the greenhouse gas effect. In short, climate depends on the balance between two different kinds of radiation: The Earth absorbs incoming visible light from the sun, called “shortwave radiation,” and emits infrared light, or “longwave radiation,” into space.

Upsetting that energy balance are rising levels of greenhouse gases, such as carbon dioxide (CO2), that increasingly absorb some of the outgoing longwave radiation and trap it in the atmosphere. Energy accumulates in the climate system, and warming occurs. But in a paper out this week in the Proceedings of the National Academy of Sciences, MIT researchers show that this canonical view of global warming is only half the story.

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From http://www.ipcc.ch/ipccreports/tar/wg1/518.htm

Greenhouse effect
Greenhouse gases effectively absorb infrared radiation, emitted by the Earth’s surface, by the atmosphere itself due to the same gases, and by clouds. Atmospheric radiation is emitted to all sides, including downward to the Earth’s surface. Thus greenhouse gases trap heat within the surface-troposphere system. This is called the natural greenhouse effect.
Atmospheric radiation is strongly coupled to the temperature of the level at which it is emitted. In the troposphere the temperature generally decreases with height. Effectively, infrared radiation emitted to space originates from an altitude with a temperature of, on average, -19°C, in balance with the net incoming solar radiation, whereas the Earth’s surface is kept at a much higher temperature of, on average, +14°C.

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Coal: back to the future [image credit: BBC]

Coal: back to the future
[image credit: BBC]


The penny has finally dropped at the top political level in Germany that abandoning nuclear power and setting stiff carbon dioxide reduction targets is impossible, without severely damaging the economy and risking mass power shortages.

Of course the usual fanatics continue to insist that such a price has to be paid, seemingly oblivious to the long-term standstill in global temperatures that suggests so-called climate policy is largely irrelevant anyway.

Breitbart London reports: Germany’s Vice Chancellor, Sigmar Gabriel, has indicated that the country will abandon its commitment to reducing CO2 emissions by 40 percent by 2020, from a 1990 base level.

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More Deceptive Images From The BBC

Posted: November 15, 2014 by oldbrew in alarmism, climate, propaganda

oldbrew:

.
.
At least these BBC reporters don’t bother to disguise the fact that they are hardcore propagandists for climate alarmism, at licence payer expense of course.

Originally posted on NOT A LOT OF PEOPLE KNOW THAT:

By Paul Homewood

h/t Ron Hughes

image

http://www.bbc.co.uk/news/science-environment-24742770

While we’re on the topic of BBC deception, take a look at this image of a coal power station from last year.

Bear in mind, that in 2009 the BBC Trust noted that this guidance had already been issued by BBC News on how to deal with images of cooling towers.

1

2

http://notalotofpeopleknowthat.wordpress.com/2014/11/13/harrabin-ignores-bbc-guidelines-on-cooling-tower-images/

The McGrath article appears to break just about every bit of the guidance:

1) The caption talks about “coal-fired plants like this”, without explaining that the cooling towers have nothing to do with CO2, and would look similar on, say, a nuclear plant.

2) It is hard to see how the cooling towers could be given more prominence.

3) The photo is used in the headline.

As for the grossly deceptive impression that black smoke is being given off, this is in clear breach of the BBC Guidelines, which state:

View original 27 more words

I’ll let The Hockey Schtick take kudos and legwork.
Paper “Far-infrared surface emissivity and climate”, not so nice that Lawrence Livermore discover what they ought to have known all along
“Berkeley Lab Scientists ID New Driver Behind Arctic Warming” – See more at:
http://newscenter.lbl.gov/2014/11/03/far-infrared-arctic/

New paper finds a huge false physical assumption of IPCC climate models

Kirchhoff’s Law of Thermal Radiation dictates that emissivity is equal to absorptivity of a given material/liquid, and only if the material/liquid is true blackbody [which a theoretical/laboratory construct that doesn’t actually exist in the real world]. As this paper finds, water is a poor emitter of far-IR, and thus is an equally poor absorber of far-IR. They are defining far-IR as 15-100 microns, and the peak absorption/emission of CO2 is at 15 microns in the far-IR. Poor emitters/absorbers IR are conversely good reflectors of IR in the same range of wavelengths.

And so on.

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Image

Fig.14. 361-day moving average of the integrated flux in the reconstruction and in UARS and SORCE SSI between a) 120 and 180 nm, b) 180 and 250 nm, c) 250 and 300 nm, and d) 300 and 410 nm. The UARS and SORCE time series are normalized to the reconstruction at the 1996 and 2008 solar cycle minima, respectively. The dashed lines indicate the uncertainty range of the reconstruction.

 

Reconstruction of total and spectral solar irradiance from 1974 to 2013 based on KPVT, SoHO/MDI, and SDO/HMI observations
K. L. Yeo, N. A. Krivova, S. K. Solanki, and K. H. Glassmeier

18 page PDF available on registration with Astronomy & Astrophysics
http://dx.doi.org/10.1051/0004-6361/201423628

ABSTRACT

  • Context. Total and spectral solar irradiance are key parameters in the assessment of solar influence on changes in the Earth’s climate.
  • Aims. We present a reconstruction of daily solar irradiance obtained using the SATIRE-S model spanning 1974 to 2013 based on full-disc observations from the KPVT, SoHO/MDI, and SDO/HMI.

 

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Ex-Environment minister Owen Paterson is tonight delivering the annual GWPF lecture. In it he will say the climate change act should be scrapped. UKIP has been saying this for years and has had a detailed energy policy document out for years detailing better alternatives for a viable mixed energy policy. The full text of his speech has been published at the Spectator. Here’s an except:

The vital importance of affordable energy

owen-patersonBut first, let us consider what is at stake. We now live in an almost totally computer-dependent world. Without secure power the whole of our modern civilisation collapses: banking, air traffic control, smart phones, refrigerated food, life-saving surgery, entertainment, education, industry and transport.

We are lucky to live in a country where energy has been affordable and reliable.

Yet we cannot take this for granted.

While most public discussion is driven by the immediacy of the looming 2020 EU renewables target; policy is actually dominated by the EU’s long-term 2050 target.

The 2050 target is for a reduction in greenhouse gas emissions by 80 percent relative to 1990 levels. The target has been outlined by the European Commission. But it is only the UK that has made it legally binding through the Climate Change Act – a piece of legislation that I and virtually every other MP voted for.

The 2050 target of cutting emissions by 80 percent, requires the almost complete decarbonisation of the electricity supply in 36 years.

In the short and medium term, costs to consumers will rise dramatically, and the lights would eventually go out. Not because of a temporary shortfall, but because of structural failures, from which we will find it extremely difficult and expensive to recover.

We must act now.

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Guest post from Ben Wouters

Geothermal flux and the deep oceans.

To appreciate how the small geothermal flux of ~100 mW/m2 can play a significant role in our climate we’ll take a look at a cross-section of the Pacific in Fig 1.

fig1

Fig 1

A typical temperature profile is given in Fig 2 below

Fig 2

Fig 2

First the profile below ~1000 m. Slowly decreasing temperature with depth, more or less the same for all latitudes. The dark blue layer (~30 C) can be regarded as the top of the cold deep oceans. From 1000 m. upward the temperature increases rapidly, warmest water at the surface in the (sub) tropics. The dark blue layer only reaches the surface at high latitudes (red arrows). All water above this dark blue layer is warmed from above by the sun, either directly or indirectly. This layer also loses its energy again at the surface to the atmosphere, and eventually to space. Solar energy only warms the upper ~1000 m. between ~50N and 55S. How high the surface temperatures will be, depends on the temperature of the deep oceans and how much the sun can warm the upper layer above the deep ocean temperature.

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Guest post from Jeremy Shiers (@JeremyShiers), whose blog is at http://jeremyshiers.com/

Temperatures were 2ºC warmer 5000 years ago according to
archaeological and geological evidence from Skara Brae in Orkneys,
Scotland

Professor Ian Stewart presented the series Making Scotland’s
Landscape
, one program, part 5, focused on historic climate.

I produced the following chart from 3 separate charts shown on the
program, the original charts are shown lower down.

Temperature Scotland 4000BC to 1400AD

It is clear

  1. current temperatures
    are not unusual
  2. there have been a
    number of changes in temperature over the millenia

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Emperor penguins, Antarctica [image credit: USAF / Wikipedia]

Emperor penguins, Antarctica [image credit: USAF / Wikipedia]

We’ll highlight some points from the official reaction later but first the opening details from a press report. Note the eagerness to talk down the relevance of Antarctic sea ice.

‘Sea ice surrounding Antarctica reached a new record high extent this year, covering more of the southern oceans than it has since scientists began a long-term satellite record to map sea ice extent in the late 1970s. The upward trend in the Antarctic, however, is only about a third of the magnitude of the rapid loss of sea ice in the Arctic Ocean.’

‘The new Antarctic sea ice record reflects the diversity and complexity of Earth’s environments, said NASA researchers. Claire Parkinson, a senior scientist at NASA’s Goddard Space Flight Center, has referred to changes in sea ice coverage as a microcosm of global climate change.’

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Hot off the press release press, NASA tells us what I’ve been telling everyone who will listen for the last four years – large amounts of heat cannot magically descend through a marginally warming (or cooling) upper ocean to lurk in the abyss… The second law of thermodynamics doesn’t like that sort of thing.

image shows heat radiating from the Pacific Ocean as imaged by the NASA’s Clouds and the Earth's Radiant Energy System

While the upper part of the world’s oceans continue to absorb heat from global warming, ocean depths have not warmed measurably in the last decade. This image shows heat radiating from the Pacific Ocean as imaged by the NASA’s Clouds and the Earth’s Radiant Energy System instrument on the Terra satellite. (Blue regions indicate thick cloud cover.) Image Credit:  NASA

The cold waters of Earth’s deep ocean have not warmed measurably since 2005, according to a new NASA study, leaving unsolved the mystery of why global warming appears to have slowed in recent years.

Scientists at NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California, analyzed satellite and direct ocean temperature data from 2005 to 2013 and found the ocean abyss below 1.24 miles (1,995 meters) has not warmed measurably. Study coauthor Josh Willis of JPL said these findings do not throw suspicion on climate change itself.

“The sea level is still rising,” Willis noted. “We’re just trying to understand the nitty-gritty details.”

In the 21st century, greenhouse gases have continued to accumulate in the atmosphere, just as they did in the 20th century, but global average surface air temperatures have stopped rising in tandem with the gases. The temperature of the top half of the world’s oceans — above the 1.24-mile mark — is still climbing, but not fast enough to account for the stalled air temperatures.

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