Archives par mot-clé : Fun?/Discussion

Why Haven’t the Tropics Warmed Much? A Tantalizing Piece of Evidence

by Dr. Roy Spencer, Sep. 28, 2019 in WUWT


The radiative resistance to global temperature change is what limits the temperature change in response to radiative forcing from (say) increasing CO2, or the sun suddenly deciding to pump out a 1 percent more sunlight.

If the climate system sheds only a little extra energy with warming, it warms even more until radiative energy balance is restored. If it sheds a lot of energy, then very little warming is required to restore global energy balance. This is the climate sensitivity holy grail, and it will determine just how much warming results from increasing CO2 in the atmosphere.

John Christy and I are preparing a paper based upon Dept. of Energy-sponsored research explaining why the tropical troposphere hasn’t warmed as much in nature as in climate models. (The discrepancy exists for surface temperature trends; for both RSS and UAH tropical tropospheric trends; as well as for global reanalysis datasets). Danny Braswell and I did a lot of research on this subject about 5-10 years ago, and published several papers.

Without going into the gory details of why it is so difficult to measure “feedbacks” (how strong the climate system radiatively resists a temperature change in response to radiative forcing), I’m going to present one graph of new results from our work that suggests where the problem with the models might be.

Protesting Warmth? Greta’s Home, Sweden, Is 3°C COLDER Today Than Nearly All Of The Last 9000 Years

by K. Richard, September 26, 2019 in NoTricksZone


Greta Thunberg lives in Sweden. According to peer-reviewed science, Sweden was at least 3°C warmer than it is today about 6000 to 9000 years ago, when CO2 concentrations lingered around 265 ppm. At 410 ppm CO2, 21st century Sweden is colder now than almost any time in the last 9000 years.

A Much Warmer Northern Hemisphere

During the Medieval Warm Period, wine vineyards flourished in Scandinavia and Russia at the same latitude (55°N) where polar bears roam today.

UK Climate Trends: Plus Ça Change: Climate hysteria is unjustified

by P. Homewood, September 27, 2019 in GWPF


London, 27 September: The UK’s key climate indicators have barely changed for 20 years. That’s according to a new paper from the Global Warming Policy Foundation, which rebuts claims that the weather is getting worse.
According to author Paul Homewood, the Met Office’s Central England Temperature Record shows that temperatures have barely changed in 20 years and that there has been no increase in extremely hot days either:
“The summer of 2018 had just one day over 30 degrees, while 1976 had six. The Met Office’s data show that hot days are just not becoming more common.”
And there seems to be little to worry about on bad weather front either. There has been a gentle decline in storminess, and in most of the UK, there has been no change in either average rainfall or rainfall extremes:
“Only in Scotland has there been a noticeable increase”, says Homewood. “Climate hysteria is entirely overdone.”
Paul Homewood: Plus Ça Change: The UK Climate in 2018 (pdf)

Canadian Govt. Scrapped 100 Years Of Inconvenient Data On Climate Change

by L.  Goldstein, Sep. 22, 2019 in ClimateChangeDispatch

Canadians already suspicious of Prime Minister Justin Trudeau’s carbon tax will likely be even more suspicious given a report by Ottawa-based Blacklock’s Reporter that Environment Canada omitted a century’s worth of observed weather data in developing its computer models on the impacts of climate change.

The scrapping of all observed weather data from 1850 to 1949 was necessary, a spokesman for Environment Canada told Blacklock’s Reporter, after researchers concluded that historically, there weren’t enough weather stations to create a reliable data set for that 100-year period.

“The historical data is not observed historical data,” the spokesman said. “It is modeled historical data … 24 models from historical simulations spanning 1950 to 2005 were used.”

These computer simulations are part of the federal government’s ClimateData.ca website launched by Environment Minister Catherine McKenna on Aug. 15.

She described it as “an important next step in giving our decision-makers even greater access to important climate data for long-term planning. The more each of us uses this type of information, the more it will help.”

Blacklock’s Reporter, which describes itself as “the only reporter-owned and operated newsroom in Ottawa” focusing on intensive reporting of government documents, notes that in many cases the observed temperatures scrapped by Environment Canada in creating its computer models were higher in the past than today.

For example, Vancouver had a higher record temperature in 1910 (30.6C) [87.08F] than in 2017 (29.5C) [85.1F].


 

No climate emergency for polar bears or walrus means no climate emergency period

by Charles the moderator, Sep. 23, 2019 in WUWT


We are told the Arctic is warming twice as fast as anywhere else in the world, yet as the internet reverberates with shrill, almost-the-lowest-ice-extent-ever stories, polar bears, Pacific walrus, and the most common ice seal species (ringed and bearded seals, as well as harp seals), are all thriving.  Two new videos published by the GWPF on polar bears and walrus confront this conundrum and the conclusion is clear: if there is no climate emergency for polar bears, there is no climate emergency anywhere.

Polar bears have survived several periods of less ice than there is now as well as periods with more ice. Most ice seal species and walrus, which have existed in the Arctic much longer than polar bears, have lived through many of these extreme sea ice cycles. The low ice extent this year – whether it ends up being second-lowest or third-lowest since 1979 – is merely a blip compared to what these species have experienced during the Pleistocene.

This new video explains that polar bears are important ecosystem indicators that are taking reduced summer sea ice in their stride. My new book, The Polar Bear Catastrophe That Never Happened, explains why this has caught polar bear specialists off guard.

Alarmist Rhetoric Based On Exaggerations And Lies”

by P. Gosselin, Sep. 18, 2019 in NoTricksZone


In a recent interview with the online Berliner Zeitung (BZ) here, economist Björn Lomborg said that 16-year old Greta Thunberg’s demands “will put people in danger”.

Greta, the Swedish teenage activist is calling for radical cuts in CO2 emissions – on a scale that would have profound impacts on the world’s market system. Moreover, Lomborg calls the demands immoral. Lomborg says it would be far wiser to invest money in bringing the world’s poor out of grinding poverty rather than to try to mitigate climate change.

Fear based on 30 years of lies and exaggerations

“Rich countries that tell poor countries not to use fossil energy for the benefit of the environment are acting immorally,” Lomborg told the BZ.

Lomborg also sharply criticized Thunberg, telling BILD news daily: “Greta Thunberg fears the end of the world due to climate change. This fear is the result of three decades of alarmist rhetoric based on exaggerations and lies.”

€43 billion for 0.00001°C of temperature reduction yearly

Lomborg also called Germany’s “Energiewende” – transition to green energies – “the best example of a failed climate policy” which has proven to be “incredibly costly and ineffective.”

“Global warming will be reduced by 0.001 degrees at most by 2100 for 43 billion euros a year,” he told the BZ. Lomborg blames the adults for panicking Ms Thunberg and using her “to push through an agenda that costs trillions but brings almost no benefits.”

Rather, for the trillions we will likely get us far graver problems. What a deal.

Global decarbonisation efforts ‘stall’, pushing climate goals out of reach

by Matt  Mace, Sep. 19, 2019 in Euractiv


Global decarbonisation efforts will need to be seven times greater if the world is to stand a fair chance of limiting global warming to 1.5C, according to a new PwC report which found decarbonisation has slowed to its lowest level since 2011. EURACTIV’s media partner edie.net reports.

PwC UK’s latest Low Carbon Economy Index (LCEI), published today (19 September), found that reaching the Paris Agreement’s 2C limit for global warming would require the global economy to reduce its carbon intensity by 7.5% every year up to 2100. The report notes that this is five times faster than the current decarbonisation rate of 1.6% – less than half the decarbonisation rate witnessed in 2015 (of 3.3%), when the Paris Agreement was introduced.

In order to meet the more ambitious target of the Paris Agreement – limiting global warming to 1.5C which has been requested by the Intergovernmental Panel on Climate Change (IPCC’s) special report – decarbonisation rates must reach 11.3% annually. That is seven times greater than the current rate, which has slowed to its lowest level since 2011.

Doomsdays that didn’t happen: Think tank compiles decades’ worth of dire climate predictions

by P. Homewood, Sep. 19, 2019 in NotaLotofPeopleKnowThat


Doomsdays that didn’t happen: Think tank compiles decades’ worth of dire climate predictions

by Paul Homewood

By Paul Homewood

 

 

From Fox:

 

image

Rep. Alexandria Ocasio-Cortez recently suggested Miami would disappear in “a few years” due to climate change. The United Nations is convening a “Climate Action Summit” next week. And climate activist Greta Thunberg is on Capitol Hill this week telling lawmakers they must act soon.

But while data from NASA and other top research agencies confirms global temperatures are indeed rising, a newly compiled retrospective indicates the doomsday rhetoric is perhaps more overheated.

The conservative-leaning Competitive Enterprise Institute has put together a lengthy compilation of apocalyptic predictions dating back decades that did not come to pass, timed as Democratic presidential candidates and climate activists refocus attention on the issue.

The dire predictions, often repeated in the media, warned of a variety of impending disasters – famine, drought, an ice age, and even disappearing nations – if the world failed to act on climate change.

An Associated Press headline from 1989 read “Rising seas could obliterate nations: U.N. officials.” The article detailed a U.N. environmental official warning that entire nations would be eliminated if the world failed to reverse warming by 2000.

Then there were the fears that the world would experience a never-ending “cooling trend in the Northern Hemisphere.” That claim came from an “international team of specialists” cited by The New York Times in 1978.

German Climatologist Werner Kirstein Unloads: “IPCC Is To Deceive People”…Calls Michael Mann’s Chart “A Fake”

by P. Gosselin, Sep.17, 2019  in NoTricksZone


German climate scientist Professor Werner Kirstein was interviewed by alternative media outlet NuoViso,  and since the video was released early this month on Youtube, it has been viewed over 130,000, times.

Politics commissioning reports for money

In the interview Professor Kirstein tells moderator Robert Stein that CO2 emissions have no effect on the climate and that “politicians commission climate scientists to produce expert reports for money.”

“Public is being deceived”

Prof. Kirstein talks about the “conscious deception” of the public and how all research projects and publications by “climate scientists” only have the goal of confirming “man-made climate change” and that different scientific views are not welcome.

According to Kirstein, the public is being deceived with the false information and that the aim of politics is to find a way to collect further taxes and to collect levies.

“We currently see this with the climate tax, which is to be introduced soon,” Kirstein says.

Ruan et al., 2019   

Une brève histoire du climat

by Egbert Egberts, 12 septembre 2019, in ScienceClimatEnergie


ATTENTION ! Cet article pourrait permettre d’économiser des milliards d’euros…

Après un été avec des températures au-dessus de 40°C, les prédictions de catastrophes sont allé bon train. “Si on ne fait rien, …” Nos politiques, pressés par une (petite) partie de leur électorat, proposent des mesures à faire pâlir les contribuables impuissants que nous sommes. Pensez aux mille milliards d’euros que veut dépenser la nouvelle présidente de la Commission européenne pour juguler le climat et limiter le réchauffement climatique.

Dans l’ensemble, on traite cette question sans aucun regard en arrière. Comme si le changement climatique était un phénomène nouveau, qui nous est tombé dessus parce qu’on roule en voiture. Cependant, il ne s’agit pas d’un phénomène nouveau et le monde francophone est particulièrement bien placé pour le savoir. Nous possédons un livre fouillé sur l’évolution du climat entre l’an 58 avant Jésus-Christ et 1842 A. D., un véritable trésor ! Pourquoi ? Parce que cela nous donne le recul indispensable pour mieux comprendre ce qui nous arrive aujourd’hui. En 1845, Joseph-Jean-Nicolas Fuster a publié son livre de 503 pages Des changements dans le climat de la France : histoire de ses révolutions météorologiques aux éditions Capelle à Paris.[1] Son livre nous résume ainsi l’évolution du climat pendant presque deux millénaires.

LONG-TERM US DROUGHT AND PRECIPITATION TRENDS

by R. McKitrick & J. Christy, Sep. 14, 2019 in WUWT


Ross McKitrick and John Christy have published a new paper in the Journal of Hydrology.

Abstract : We estimate trends in US regional precipitation on multiple time spans and scales relevant to the detection of changes in climatic regimes. A large literature has shown that trend estimation in hydrological series may be affected by long-term persistence (LTP) and selection of sample length. We show that 2000-year proxy-based reconstructions of the Palmer Modified Drought Index for the US Southeast (SE) and Pacific Coast (PC) regions exhibit LTP and reveal post- 1900 changes to be within the range of longer-term natural fluctuations. We also use a new data base of daily precipitation records for 20 locations (10 PC and 10 SE) extending back in many cases to the 1870s. Over the 1901–2017 interval upward trends in some measures of average and extreme precipitation appear, but they are not consistently significant and in the full records back to 1872 they largely disappear. They also disappear or reverse in the post-1978 portion of the data set, which is inconsistent with them being responses to enhanced greenhouse gas forcing. We conclude that natural variability is likely the dominant driver of historical changes in precipitation and hence drought dynamics in the US SE and PC.

Important news from the world’s top meteorologist

by Larry Kummer, Editor, Sep.14, 2019 in WUWT


Summary: After years of tacit cooperation with climate activists, the first major climate agency may have begun to turn against their misuse of climate science. If so, this would be a big event in the climate debate. As seen in this interview with the head of the WMO. He has much to say that we need to hear.

Scientists are turning against climate activists and their scare tactics.

 

Excerpts from “Climate change is not yet out of control,
but the debate is
.”

Interview with Petteri Taalas, Secretary General of the WMO.
By Pekka Lähteenmäki in the Finnish weekly magazine Talouselämä, Sept 6.
From Finnish to English via Google Translate, so only roughly accurate!
WHO = World Meteorological Organization (their website).

{Taalas has five children.} Many people wonder if we should even have children. Will the offspring live as adults on a ruined planet? Every child and adult is a source of emissions. …

Greta, Germany & Green Energy

by J. Curry, Sep. 10, 2019 in BigPictureNews


Anyone who still thinks green/renewable energy is the answer is invited to click over to a web page that monitors Germany’s celebrated Energy Transition (English translation here). The most recent six-month update has just been published. Despite a multi-billion-euro price tag, Germany’s attempts to ditch fossil fuels isn’t going well. At all.

Only six of the transition’s 14 goals (43%) appear achievable by 2020. Here are the two absolutely critical data points:

#1 – Germany’s CO2 emissions reduction targets won’t be met.

#2 – Its previously robust electricity grid is now vulnerable and insecure.

The story of Germany’s energy transition boils down to this: Something that used to work well has been deliberately broken, undermined, degraded, and crippled. A ton of money has been spent. To make things worse.

Over at Forbes, Michael Shellenberger discusses how this latest report card is being covered in the German press. In his words:


‘Alarmism Enforcement’ On Hurricanes And Global Warming

by J. Curry, Sep; 9, 2019 in ClimateChangeDispatch


I used to be concerned about ‘consensus enforcement’ on the topic of climate change.  Now I am concerned about ‘alarmism enforcement.’

Ever since Hurricane Katrina in 2005, any hurricane causing catastrophic damage has been seized upon by climate alarmists as evidence of the horrors of global warming.

As if the record-holding hurricanes from the 1920s through the 1950s never happened.

The catastrophic damage to the Bahamas from Hurricane Dorian is no different.  The ‘official’ statement from the alarmist contingent of climate scientists appears to be this article in the Guardian, by Mann and Dessler:

Unfortunately for the alarmists, there are several factors that are getting in the way of the public promotion of the Mann/Dessler narrative:

Alabama-gate:  President Trump’s insistence on defending his erroneous statements about the forecasts for Dorian impacting Alabama.  A good article summarizing all this was co-authored by one of my former students at Georgia Tech, Brandon Miller [link].

After the Alabama National Weather Service office made a statement that Alabama was not at risk from Dorian, NOAA issued a statement defending President Trump  [link].

A WaPo article describes this latest development [link], and the subsequent outrage among scientists and NOAA employees (past and present.

This whole situation is taking the oxygen out of the room in terms of discussions regarding Dorian and global warming.  Gotta wonder if this was the strategy?

WMO Secretary-General Warns Against Climate ‘Doomsters and Extremists’

by  Anthony Watts, Sep. 6, 2019 in WUWT


London, 6 September: The General-Secretary of the World Meteorological Organization (WMO) says that the alarmist narrative on climate change has gone off the rails and criticised the news media for provoking unjustified anxiety.

Speaking to Finland’s financial newspaper Talouselämä (“The Journal”) on 6 September 2019, Petteri Taalas called for cooler heads to prevail, saying that he does not accept arguments of climate alarmists that the end of the world is at hand.

Dr Taalas also spoke of the dangers of green extremism:

“While climate sceptisism has become less of an issue, now we are being challenged from the other side. Climate experts have been attacked by these people and they claim that we should be much more radical. They are doomsters and extremists; they make threats.”

And he called for the media both to challenge experts and allow a broader range of opinions to be heard.

La géologie, une science plus que passionnante … et diverse