Posts Tagged ‘climate change’

Credit: phys.org


If there was any life left in this climate change scare story, this latest research should finally see it off.

Clathrate (hydrate) gun hypothesis stirred quite the controversy when it was posed in 2003, as ScienceDaily reports. It stated that methane hydrates — frozen water cages containing methane gas found below the ocean floor — can melt due to increasing ocean temperatures.

According to the hypothesis this melt can happen in a time span of a human life, dissociating vast amounts of hydrate and releasing methane into the atmosphere.

Consequently, this would lead to a runaway process, where the methane released would add to the global budget of greenhouse gases, and further accelerate the warming of the planet.

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The author notes that ‘while mainstream climate science is replete with published proxy temperature studies showing that temperatures have cycled up and down over the last 2,000 years – spiking during the Medieval Warm Period and then again recently to about 1980 as shown in Figure 12 – the official IPCC reconstructions (which underpin the Paris Accord) deny such cycles.’

We could add ‘and then says the science is settled’.
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After deconstructing 2,000-year old proxy-temperature series back to their most basic components, and then rebuilding them using the latest big data techniques, John Abbot and I show what global temperatures might have done in the absence of an industrial revolution, writes Jennifer Marohasy

The results from this novel technique, just published in GeoResJ [1], accord with climate sensitivity estimates from experimental spectroscopy but are at odds with output from General Circulation Models.    

According to mainstream climate science, most of the recent global warming is our fault – caused by human emissions of carbon dioxide.

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LA street [image credit: theatlantic.com]


Whether this is anything more than a gimmick remains to be seen. It’s described as an experiment ‘to reduce the heat island effect’.

Can a splash of gray pavement paint help combat global warming?

In Los Angeles, where summer temperatures regularly surpass 100 degrees Fahrenheit (38 degrees Celsius), workers are coating streets in special gray treatments in a bid to do just that, as Phys.org reports.

The City of Angels, home to four million people, is the first major city to test the technology. Normal black asphalt absorbs 80 to 95 percent of sunlight, while the gray “cool pavement” reflects it—dramatically lowering ground temperature and reducing urban street heat, advocates of the method say.

During a demonstration of the technique, Jeff Luzar—sales director at GuardTop, which markets the product—showed how applying the paint could drop street temperatures by about 12 degrees Fahrenheit after just one coat.

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Met Office tiptoeing round the truth

Posted: August 12, 2017 by oldbrew in alarmism, media, MET office
Tags: ,

Credit: NOAA


Air time for climate change sceptic Lord Lawson, critical questioning of Al Gore and the stonewalling Met Office – is the BBC’s support for climate alarmism weakening?

Met Office can’t bear to give facts on hurricanes writes Andrew Montford in the GWPF Newsletter.

It’s normal when somebody like Nigel Lawson appears on the BBC, for the corporation to follow up by giving somebody from the green side of the equation a chance for an unchallenged response. I think this is something to do with the unique way it’s funded. 

Today was no exception, with yesterday’s exchanges between Lawson and Al Gore being given a going over by Roger Harrabin and Peter Stott from the Met Office.

Harrabin had been tasked with looking at the claims about the relative levels of subsidy for fossil fuels and renewables, and this was not too bad.

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Interesting times ahead for US climate science, as the GWPF reports. It would be great to see Scott Pruitt include Ned Nikolov in this initiative, since his and Karl’s theory is about the only properly quantified alternative to the unproven radiative greenhouse hypothesis. Their theory successfully predicts surface temperatures across a range of planetary bodies, whereas the mainstream theory fails when it is applied to any other planet or moon apart from earth.

U.S. EPA Administrator Scott Pruitt is leading a formal initiative to challenge mainstream climate science using a “back-and-forth critique” by government-recruited experts, according to a senior administration official.

The program will use “red team, blue team” exercises to conduct an “at-length evaluation of U.S. climate science,” the official said, referring to a concept developed by the military to identify vulnerabilities in field operations.

“The administrator believes that we will be able to recruit the best in the fields which study climate and will organize a specific process in which these individuals … provide back-and-forth critique of specific new reports on climate science,” the source said.

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Ron Clutz takes a closer look at some of the machinations of climate alarm propagandists in their endless attempts to manipulate public opinion.

Science Matters

A new theme emerging out of the IPCC Fifth Report was the emphasis on selling the risk of man-made climate change. The idea is that scientists should not advocate policy, but do have a responsibility to convince the public of the risks resulting from burning fossil fuels.

An article illustrates how this approach shapes recent public communications in support of actions on global warming/climate change.  Treading the Fine Line Between Climate Talk and Alarmism (Op-Ed)  By Sarah E. Myhre, Ph.D. | June 23, 2017.  Excerpts:

What is our role in public leadership as scientists? I would suggest a few action items: Work to reduce risk and cost for the public; steward the public’s interest in evidence; and be steady and committed to the scientific process of dissent, revision and discovery. This means communicating risk when necessary. We would never fault an oncologist for informing patients about the cancer risks…

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Is there a contradiction in this IB Times report? First it says volcanism causes cooling, then we’re told the resulting volcanic CO2 could have caused warming.

High concentration of mercury identified in ancient sediments suggest that large-scale episodes of volcanism coincided with the end-Triassic mass extinction around 201 million years ago.

It is likely that these huge pulses of volcanic activity led to great environmental perturbations, leading to the extinction of many species living on Earth at the time and setting the scene for the dawn of the dinosaurs.

Previous studies had already shown that volcanic activity was happening around the time of the extinction and there was some evidence for an increase in the concentration of carbon dioxide (CO2) in the atmosphere.

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Credit: BBC

A brief run-through of some of the problems with ‘man-made warming’ theories, which so often get swept under the carpet and treated as unmentionable.

One of the main accusations launched by climate activists is that anyone arguing against man-made global warming is “anti-science.”

They tell us that the science is “settled,” and that anyone who objects is ignoring a blindingly obvious set of facts.

But what to do about someone like me, asks Steven Wright in Climate Change Dispatch?

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The ITCZ is the central band of bright white clouds in this composite image [credit: NASA]


This seems to add weight to the idea that the moving position of the ITCZ can be a useful indicator of natural climate change, in conjunction with other data sources.

The tropical rain belt, also known as the Intertropical Convergence Zone (ITCZ), is in a state of constant migration, as Phys.org reports.

It continuously changes position in response to the seasons and follows the sun’s zenith, with a slight delay. This in turn determines the wet and dry periods in the tropics and subtropics over the course of the year.

The tropical rain belt therefore effectively controls the climate in most of the tropical and subtropical regions, such as the monsoon season in Southeast Asia and Central America.

An international team of researchers led by Franziska Lechleitner from the Geological Institute at ETH Zurich has proven for the first time that the migration of the tropical rain belt is quite sensitive to even small changes in global temperatures.
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Interesting historical round-up from Paul Homewood, which concludes:
‘There is no written law of nature that says glaciers should be the size they were in Victorian times.’

Indeed.

Update – see also the follow-up post: Rapid Retreat Of Glaciers In Early 20thC

NOT A LOT OF PEOPLE KNOW THAT

By Paul Homewood

Scan

From HH Lamb’s “Climate, History and the Modern World”

We know that sea levels have risen since the late 19thC, and that much of this is due to melting of glaciers and ice sheets. However, we also know that the same glaciers were growing rapidly during the Little Ice Age, so can we say that 20thC sea level rise is anything other than a natural process?

Let’s remind ourselves of just how great and widespread this glacial advance was.

The history of glacial advance in the European Alps is well documented. Historian, Brian Fagan, offers us this horrifying account:

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Map readers required?


H/T Climate Depot

Another story from the ‘Climate change causes everything’ file. Fortunately Colombia has not over-reacted.

TODAY VENEZUELA – Venezuela tried to downplay its illegal entry of troops into Colombia this week by claiming the constantly changing direction of a river near the border accidentally led the soldiers beyond their jurisdiction.

Foreign Minister Delcy Rodriguez said the Venezuelan soldiers entered Colombia’s eastern department of Arauca as a result of the Arauca River, which she said is constantly changing its flow and direction.

A diplomatic commission still has to clarify the incident, which is reportedly expected in the coming hours.
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Image credit: NASA

Basing all government climate research funding on one narrow theory was never a smart policy.
H/T GWPF

Prominent scientists operating outside the scientific consensus on climate change urged Congress on Wednesday to fund “red teams” to investigate “natural” causes of global warming and challenge the findings of the United Nations’ climate science panel.

The suggestion for a counter-investigative science force – or red team approach – was presented in prepared testimony by scientists known for questioning the influence of human activity on global warming.

It comes at a time when President Donald Trump and other members of the administration have expressed doubt about the accepted science of climate change, and are considering drastic cuts to federal funding for scientific research.
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Who gets a say in deciding whether to interfere with nature on a global scale?

Misfits


No doubt both sides in the UK-EU negotiations will have their ‘wish lists’ but can the EU dictate British policies?

The UK will have to abide by EU environmental and climate change standards in order to conclude a future trading agreement with the rest of the trading bloc, according to a leaked European Parliament paper seen by Utility Week.

A draft resolution, setting out the parliament’s parameters for EU-UK negotiations on the latter’s withdrawal from the union, identifies the environment and climate change as two areas where common benchmarks must continue to apply.
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The warmist AAAS sucks lemons in advance of the US Senate climate change hearing next week. They resent his ‘agenda’ as it opposes theirs.

Representative Lamar Smith (R–TX) rarely expresses his true feelings in public, says the AAAS.

But speaking yesterday to a like-minded crowd of climate change doubters and skeptics, the chairman of the science committee in the U.S. House of Representatives acknowledged that the committee is now a tool to advance his political agenda rather than a forum to examine important issues facing the U.S. research community.

“Next week we’re going to have a hearing on our favorite subject of climate change and also on the scientific method, which has been repeatedly ignored by the so-called self-professed climate scientists,” Smith told the Heartland Institute’s 12th annual conference on climate change in Washington, D.C.
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Once America’s new leader poured cold water on the Paris ‘deal’ it didn’t take some (all?) of the other G-20 members long to get cold feet about stumping up the ‘pledged’ cash. Looks like the political showboating was just that. Who is surprised any more by this well-worn routine?
H/T GWPF

Finance ministers for the U.S., China, Germany and other members of the Group of 20 economies may scale back a robust pledge for their governments to combat climate change, ceding efforts to the private sector.

Citing “scarce public resources,” the ministers said they would encourage multilateral development banks to raise private funds to accomplish goals set under the 2015 Paris climate accord, according to a preliminary statement drafted for a meeting that will be held in Germany next week.

The statement, obtained by Bloomberg News, is a significant departure from a communique issued in July, when finance ministers urged governments to quickly implement the Paris Agreement, including a call for wealthy nations to make good on commitments to mobilize $100 billion annually to cut greenhouse gases around the globe.
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US Environmental Protection Agency (EPA) chief Scott Pruitt


BBC News all but bursts a blood vessel over the EPA head’s opinion that the climate science ‘debate’ is not settled. Their reaction is to trot out some standard warmist platitudes, which surprises nobody.

US Environmental Protection Agency (EPA) chief Scott Pruitt has said he “would not agree” carbon dioxide is a primary contributor to global warming.

He told CNBC that measuring human impact on the climate was “very challenging” and there was “tremendous disagreement” about the issue.

Mr Pruitt instead insisted that officials needed “to continue the debate” on the issue. His remarks contradict his own agency’s findings on greenhouse gas emissions.
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The El Niño of 1997-8

The El Niño of 1997-8


The report says ‘the possible return of El Niño this year would present a unique situation’. Is there still excess heat in the system as sunspots go further into ‘quiet mode’?
H/T GWPF

The path to another round of El Niño in 2017 appears to be shortening, as tropical Pacific Ocean waters have been warming at a substantial rate. Several models suggest that El Niño could be comfortably in place as early as May.

Weather forecasters have been eyeing for a couple of months a possible return this year of El Niño, which normally comes around every two to seven years and last occurred in 2015/16.
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Arctic sea ice [image credit: cbc.ca]

Arctic sea ice [image credit: cbc.ca]


Variations of this aerosol claim have been around for many years. These researchers seem uninterested in known oceanic cycles which might help to explain the observed temperature changes, instead relying on climate models. But another researcher notes that ‘black carbon emissions in some parts of the Arctic are still quite common’, as confirmed recently here. An earlier study (2007) reported ‘There is, however, at least a fourfold uncertainty in the aerosol forcing effect.’ So it looks like the jury is still out regarding air pollution in the Arctic.

Humans may have been altering Arctic sea ice longer than previously thought, according to researchers studying the effects of air pollution on sea ice growth in the mid-20th Century.

The new results challenge the perception that Arctic sea ice extent was unperturbed by human-caused climate change until the 1970s, reports Phys.org. Scientists have observed Arctic sea ice loss since the mid-1970s and some climate model simulations have shown the region was losing sea ice as far back as 1950.

In a new study, recently recovered Russian observations show an increase in sea ice from 1950 to 1975 as large as the subsequent decrease in sea ice observed from 1975 to 2005.
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nasalogo
It looks more like ‘winding down’ at this stage, but ‘scrapping’ eventually. Not unexpected, if it goes ahead as suggested.
H/T Europe Breaking News

Donald Trump is poised to eliminate all climate change research conducted by Nasa as part of a crackdown on “politicized science”, his senior adviser on issues relating to the space agency has said.

Nasa’s Earth science division is set to be stripped of funding in favor of exploration of deep space, with the president-elect having set a goal during the campaign to explore the entire solar system by the end of the century. This would mean the elimination of Nasa’s world-renowned research into temperature, ice, clouds and other climate phenomena.
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