Den store sandhed

Sagt lige ud så er den såkaldte klimaforskning en stor skamplet på forskningen. Den undergraver tilliden til forskningen helt generelt, for klimaforskningen overdriver problemerne fuldstændigt hæmningsløst. Dette sker i et omfang så vildt og voldsomt, at det kun er folk, som ikke vil se disse problemer, som ikke kan se dem.

Jørgen Petersen skrev:
Sagt lige ud så er den såkaldte klimaforskning en stor skamplet på forskningen. Den undergraver tilliden til forskningen helt generelt, for klimaforskningen overdriver problemerne fuldstændigt hæmningsløst.

Peter Villadsen skrev:
Størstedelen af uddannede og almindeligt tænkende mennesker lytter gerne til forskningen.
Hvorfor er benægterne mon fanget i en livsløgn? Ingen ved det, måske synes de det er sjovt at være Rasmus Modsat? hvem ved.

crank skrev:

Peter Villadsen skrev:
Størstedelen af uddannede og almindeligt tænkende mennesker lytter gerne til forskningen.
Hvorfor er benægterne mon fanget i en livsløgn? Ingen ved det, måske synes de det er sjovt at være Rasmus Modsat? hvem ved.

Nah, Peter. Nu er jeg måske ikke et almindeligt tænkende menneske; men jeg er også holdt op med at lytte til forskerne. Især fordi, jeg er imod vækst. Forskerne bliver betalt for at tænke i 'grøn' vækst. Det gør bare den økologiske situation endnu værre. Synes du så, at jeg er benægter?


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delphi skrev:

crank skrev:

Peter Villadsen skrev:
Størstedelen af uddannede og almindeligt tænkende mennesker lytter gerne til forskningen.
Hvorfor er benægterne mon fanget i en livsløgn? Ingen ved det, måske synes de det er sjovt at være Rasmus Modsat? hvem ved.

Nah, Peter. Nu er jeg måske ikke et almindeligt tænkende menneske; men jeg er også holdt op med at lytte til forskerne. Især fordi, jeg er imod vækst. Forskerne bliver betalt for at tænke i 'grøn' vækst. Det gør bare den økologiske situation endnu værre. Synes du så, at jeg er benægter?


.

Den klimaindustri som har vokset sig stor og voldsom har kun et ønske, og det er at vokse sig større, som kun kan ske via flere og større bevillinger. Og til det formål bruges løgn og fordrejninger og direkte usandheder.

Her hovedkonklusionerne:

Headline Statements IPCC 2021

A. The Current State of the Climate
A.1 It is unequivocal that human influence has warmed the atmosphere, ocean and land.
Widespread and rapid changes in the atmosphere, ocean, cryosphere and biosphere have occurred.
A.2 The scale of recent changes across the climate system as a whole and the present state of many aspects of the climate system are unprecedented over many centuries to many thousands of years.
A.3 Human-induced climate change is already affecting many weather and climate extremes in every region across the globe. Evidence of observed changes in extremes such as heatwaves, heavy precipitation, droughts, and tropical cyclones, and, in particular, their attribution to human influence, has strengthened since the Fifth Assessment Report (AR5).
A.4 Improved knowledge of climate processes, paleoclimate evidence and the response of the climate system to increasing radiative forcing gives a best estimate of equilibrium climate sensitivity of 3°C, with a narrower range compared to AR5.

B. Possible Climate Futures
B.1 Global surface temperature will continue to increase until at least the mid-century under all emissions scenarios considered. Global warming of 1.5°C and 2°C will be exceeded during the 21st century unless deep reductions in carbon dioxide (CO2) and other greenhouse gas emissions occur in the coming decades.
B.2 Many changes in the climate system become larger in direct relation to increasing global warming. They include increases in the frequency and intensity of hot extremes, marine heatwaves, and heavy precipitation, agricultural and ecological droughts in some regions, and proportion of intense tropical cyclones, as well as reductions in Arctic sea ice, snow cover and permafrost.
B.3 Continued global warming is projected to further intensify the global water cycle, including its variability, global monsoon precipitation and the severity of wet and dry events.
B.4 Under scenarios with increasing CO2 emissions, the ocean and land carbon sinks are projected to be less effective at slowing the accumulation of CO2 in the atmosphere.
B.5 Many changes due to past and future greenhouse gas emissions are irreversible for centuries to millennia, especially changes in the ocean, ice sheets and global sea level.

C. Climate Information for Risk Assessment and Regional Adaptation
C.1 Natural drivers and internal variability will modulate human-caused changes, especially at regional scales and in the near term, with little effect on centennial global warming. These modulations are important to consider in planning for the full range of possible changes.
C.2 With further global warming, every region is projected to increasingly experience concurrent and multiple changes in climatic impact-drivers. Changes in several climatic impact-drivers would be more widespread at 2°C compared to 1.5°C global warming and even more widespread and/or pronounced for higher warming levels.
C.3 Low-likelihood outcomes, such as ice sheet collapse, abrupt ocean circulation changes, some compound extreme events and warming substantially larger than the assessed very likely range of future warming cannot be ruled out and are part of risk assessment.

D. Limiting Future Climate Change
D.1 From a physical science perspective, limiting human-induced global warming to a specific level requires limiting cumulative CO2 emissions, reaching at least net zero CO2 emissions, along with strong reductions in other greenhouse gas emissions. Strong, rapid and sustained reductions in CH4 emissions would also limit the warming effect resulting from declining aerosol pollution and would improve air quality.
D.2 Scenarios with low or very low greenhouse gas (GHG) emissions (SSP1-1.9 and SSP1-2.6) lead within years to discernible effects on greenhouse gas and aerosol concentrations, and air quality, relative to high and very high GHG emissions scenarios (SSP3-7.0 or SSP5-8.5). Under these contrasting scenarios, discernible differences in trends of global surface temperature would begin to emerge from natural variability within around 20 years, and over longer time periods for many other climatic impact-drivers (high confidence).

Concurrent heatwaves seven times more frequent than in 1980s
Using climate data from 1979 to 2019, the researchers found that the number of heatwaves occurring simultaneously in the mid- to high-latitudes of the Northern Hemisphere was seven times greater in the 2010s than in the 1980s. On average, there were concurrent heatwaves on 143 days each year of the 2010s -- almost every day of the 153 days of the warm months of May through September.

The concurrent heat events also grew hotter and larger: their intensity rose by 17% and their geographic extent increased 46%.

"More than one heatwave occurring at the same time often has worse societal impacts than a single event," said Cassandra Rogers, a WSU post-doctoral researcher and lead author of the study in Journal of Climate. "If certain regions are dependent on one another, for instance for agriculture or trade, and they're both undergoing stresses at the same time, they may not be able to respond to both events."

Using climate data from 1979 to 2019

Climate change is intensifying extremes also in the oceans

Anthropogenic climate change is becoming increasingly noticeable, in Switzerland most recently during the summer of 2021, which was marked by heavy rains and flooding. It has long been known that global warming is causing not only longer and more intense heatwaves, but also, depending on the region, more severe droughts, rains and storms. Moreover, these kinds of extreme weather events increasingly occur in combination, compounding each other.

However, there has been little research into how extreme events develop in the world's oceans. Beginning in the early 2000s, first scientific studies pointed out the significance of marine heatwaves and their impact on ecosystems. A wake-up call came in 2011 in the form of a persistent marine heatwave off the west coast of Australia that destroyed the species-rich kelp forests there. Probably the most prominent example of a marine heatwave is the "Blob," as it is known -- a giant bubble of warm water that spread in the northeast Pacific Ocean and along the US West Coast from Alaska to the equator from 2013 to 2015. It killed millions of marine birds, fish and other creatures.

Researchers at ETH Zurich, the University of Bern and the University of Tasmania used a high-resolution ocean model to analyse this extreme weather event from a new perspective. Led by Nicolas Gruber, Professor of Environmental Physics at ETH Zurich, the international team concluded that it was not solely the high water temperatures that caused the mass die-off, but probably a combination of extreme events that occurred simultaneously.

To demonstrate the impact of climate change, the researchers simulated the extreme events for the period from 1861 to 2020 and compared the current situation with pre-industrial times. The results speak for themselves: globally, the number of hot days on the ocean surface each year has increased tenfold, from around 4 days to 40. The number of days on which the ocean depths are characterized by anomalously low oxygen has increased fivefold.

But there's no doubt about this: if climate change continues extreme events will increase -- individually and in combination with others. A better data basis and extensive research work would pave the way for more suitable action to protect the ocean. "Much like there are already international protected areas on the high seas, we could, for example, establish a fishing ban to protect areas affected by extreme events," Gruber says. This has already been done in the case of the Blob. However, a fishing ban alone will hardly be enough; further measures are urgently needed, emphasizes the ETH professor. "Time is short!"

delphi skrev:
Tony Heller om temperaturrecorder fra fortiden herunder ikke mindst i Australien se https://www.youtube.com/watch?v=cxQjOasRvGE&t=95s

Himalayan glaciers melting at 'exceptional rate'

The accelerating melting of the Himalayan glaciers threatens the water supply of millions of people in Asia, new research warns.

The study, led by the University of Leeds, concludes that over recent decades the Himalayan glaciers have lost ice ten times more quickly over the last few decades than on average since the last major glacier expansion 400-700 years ago, a period known as the Little Ice Age.

The study also reveals that Himalayan glaciers are shrinking far more rapidly than glaciers in other parts of the world—a rate of loss the researchers describe as "exceptional".

Jørgen Petersen skrev:
Hvor bliver vandet af? Havniveauet stiger fortsat kun med ca. 1,7 millimeter pr- år.

Antarctic Ice Sheet melting to lift sea level higher than thought, study says

Global sea-level rise associated with the possible collapse of the West Antarctic Ice Sheet has been significantly underestimated in previous studies, meaning the sea level in a warming world will be greater than anticipated, according to a new study from Harvard researchers.

The report, published in Science Advances, features new calculations for what researchers refer to as a water-expulsion mechanism. This occurs when the solid bedrock the West Antarctic Ice Sheet sits on rebounds upward as the ice melts and the total weight of the ice sheet decreases. The bedrock sits below sea level, so when it lifts it pushes water from the surrounding area into the ocean, adding to global sea-level rise.

Jørgen Petersen skrev:
Alt kan bruges som grundlag for en skræmmekampagne

Jørgen Petersen skrev:
Nu har vi snakket om AGW i 30 - 40 år, og der er stadig ikke skyggen af udsigt til en såkaldt klimakatarstrofe.

Det er derimod en katarstrofe, at der fortsat er milliarder af mennesker, som lever i dyb fattigdom. Tilsvarende er det også en katastrofe, at der hvert år er ca. 5 millioner mennersker, som mister livet p. g. a. fattigdomsrelaterede sygdomme som f.eks. tuberkulose, malaria, diarre, AIDS og lignende sygdomme.

Jørgen Petersen skrev:
Du vil med andre ord ikke forholde dig til alle de ting, som strider imod din neurotiske forestilling om en altødelæggende klimakatastrofe.

Jørgen Petersen skrev:
Kalder du det at være ondskabsfuld, blot fordi jeg snakker om dine neurotiske forestillinger om en altødelæggende klimakatastrofe?

Så vent og se til den dag jeg virkelig blive ondskabsfuld. Så kommer det til at se helt anderledes ud.

Jørgen Petersen skrev:
Formuleringen: "Neurotiske forestillinger om en altødelæggende klimakatastrofe" har åbenbart ramt plet.