Klima eller kapitalisme

Søren R Nielsen skrev:
Hvis du ikke rigtigt vil ha' det som dem....

crank skrev:

Søren R Nielsen skrev:
Wow, crank! -Det er idyllisk.
-Sælg alle dine ejendele, og doner pengene til WWF.
Behold dog noget til billetten, medmindre du har tænkt dig at være CO2-neutral, og vælger at gå til fods.
-God rejse til det perfekte sted.

Jeg finder dine forslag uinteressante og fjollede. Jeg er faktisk misundelig på de folk.



.

Jørgen Petersen skrev:
Hvad er det for klimaproblemer, som du taler om?

De klimatiske livsbetingelser for såvel planter, dyr og mennesker er da blevet klart forbedret igennem de sidste 100 eller 200 år.

It is very likely that the numbers of cold days and nights have
decreased and the numbers of warm days and nights have
increased globally since about 1950. There is only medium confidence
that the length and frequency of warm spells, including heat
waves, has increased since the middle of the 20th century mostly owing
to lack of data or of studies in Africa and South America. However, it is
likely that heatwave frequency has increased during this period in large
parts of Europe, Asia and Australia. {2.6.1}

It is likely that since about 1950 the number of heavy precipitation
events over land has increased in more regions than it has
decreased. Confidence is highest for North America and Europe where
there have been likely increases in either the frequency or intensity of
heavy precipitation with some seasonal and/or regional variation. It is
very likely that there have been trends towards heavier precipitation
events in central North America. {2.6.2.1}

Confidence is low for a global-scale observed trend in drought
or dryness (lack of rainfall) since the middle of the 20th century,
owing to lack of direct observations, methodological uncertainties
and geographical inconsistencies in the trends. Based on
updated studies, AR4 conclusions regarding global increasing trends
in drought since the 1970s were probably overstated. However, this
masks important regional changes: the frequency and intensity of
drought have likely increased in the Mediterranean and West Africa
and likely decreased in central North America and north-west Australia
since 1950. {2.6.2.2}

In summary, there continues to be a lack of evidence and thus low confidence regarding the sign of trend in the magnitude and/or frequency of floods on a global scale

Current datasets indicate no significant observed trends in global tropical cyclone frequency over the past century. No robust trends in annual
numbers of tropical storms, hurricanes and major hurricanes counts have been identified over the past 100 years in the North Atlantic basin

In summary, there is low confidence in observed trends in small-scale severe weather phenomena such as hail and thunderstorms because of historical data inhomogeneities and inadequacies in monitoring systems

These tornadoes would have likely been reported even during the decades before Doppler radar use became widespread and practices resulted in increasing tornado reports. The bar charts below indicate there has been little trend in the frequency of the stronger tornadoes over the past 55 years.

Niels K Sørensen skrev:
Fin oversigt, Christian-Roskilde. Det vi kan måle til nu er interessant, men mere interessant er hvad der opleves, hvis vi f.eks. adderer yderligere 2 grader mere.

Hvis vi lige tager et par andre negative aspekter med ved øget temperatur, så er havstigninger, øgede skovbrande og påvirkning af økosystemer vigtige elementer.
Der er stigning i antallet af skovbrande i Nordamerika. Måske også andre steder?

Klimasystemet er jo uliniært, så der kan næppe aldrig gives andet end indikationer på mulige scenarier. Det er det, der udmærket beskrives i IPPC rapporten.
Det er en ændret verden, vi går i møde, men hvordan, hvor meget?

Nyeste forskning viser, at tidligere under opvarmning efter sidste istid, så er der sket abrupte ændringer i vandstanden, som følge af ismasser kollapsede.
Det, som forskerne idag ikke ved med sikkerhed er, om Antarktis og Grønland kan reagere på samme måde.

Ved du noget om dette emne?

Nyeste forskning viser, at tidligere under opvarmning efter sidste istid, så er der sket abrupte ændringer i vandstanden, som følge af ismasser kollapsede.
Det, som forskerne idag ikke ved med sikkerhed er, om Antarktis og Grønland kan reagere på samme måde.

Ved du noget om dette emne?

Niels K Sørensen skrev:
Ja, jeg ønsker da bestemt at bryde samfundet ned.

Christian-Roskilde: vedrørende skovbrande, så har jeg mine oplysninger fra forskellige undersøgelser, der er lavet indenfor de sidste år.
Her er en af dem, men der er meget mere om det på nettet, hvis emnet interesserer dig.

https://phys.org/news/2017-10-forest-contributed-global-tree-loss.html?utm_source=nwletter&utm_medium=email&utm_campaign=daily-nwletter

Christian-Roskilde: vedrørende abrupt ændring i havniveau, så er her den undersøgelse, jeg refererede til.
Såfremt isområder f.eks på Antarktis kunne udvise denne adfærd, så er spørgsmålet: hvor meget CO2 kan udledes, hvor stor global temperaturstigning- før det sker?

https://www.scientificamerican.com/article/oceans-can-rise-in-sudden-bursts/

In the Northern Hemisphere, they take the form of rapid warming episodes, typically in a matter of decades, each followed by gradual cooling over a longer period. For example, about 11,500 years ago, averaged annual temperatures on the Greenland ice sheet warmed by around 8 °C over 40 years, in three steps of five years (see,[3] Stewart, chapter 13), where a 5 °C change over 30–40 years is more common.

The ocean sediment evidence agrees with chemical clues from Greenland ice cored by other researchers, which show that the air above Greenland cooled in precisely the same pattern. The 1,500-year cold snaps dropped average temperatures throughout the North Atlantic region within a century or two, and probably faster, the scientists said. Temperatures stayed cold for several hundred years, then warmed again as quickly as they cooled.

@Kjeld og Søren
I stoler mere på et debatindlæg af "christian-roskilde" end af en artikel i Scientific American?

Skal bare lige være sikker. Så I må gerne bekræfte, at det er sådan det forholder sig.

Magnus Hansen skrev:
@Kjeld og Søren
I stoler mere på et debatindlæg af "christian-roskilde" end af en artikel i Scientific American?

Skal bare lige være sikker. Så I må gerne bekræfte, at det er sådan det forholder sig.