Citat:
Jag förstod ditt tidigare anförande som att ingen uppvärming ägde rum utan berodde på mätbias.
Kolla här. Vi som varit med ett tag har hört detta, kanske 100 ggr per år.
Natural carbon sinks (the carbon absorbers, as opposed to "sources," which release carbon) on land and in the ocean have become less effective over time. That is, natural sinks that removed about 60% of annual human-caused CO2 emissions in 1959 now remove about 55% today.
Since 1850, CO2 levels have increased from 280 ppm to around 420 ppm. Scientists understand this increase to be inextricably tied to the human burning of fossil fuels (confirmed by chemical analysis of that rise in CO2). That's a near 50% increase in CO2 levels in just 172 years (about 1 part per million every 23 weeks)! That's over 300 times faster than the natural increase in CO2 levels associated with the warming of Earth's surface coming out of the Ice Age.
https://climate.nasa.gov/faq/55/how-might-earths-atmosphere-land-and-ocean-systems-respond-to-changes-in-carbon-dioxide-over-time/
Om du kan engelska förklaras det hela bra här
https://climate.mit.edu/ask-mit/how-much-carbon-dioxide-does-earth-naturally-absorb
https://www.ipcc.ch/report/ar6/wg1/downloads/faqs/IPCC_AR6_WGI_FAQ_Chapter_05.pdf
For decades, about half of the carbon dioxide (CO2) that human activities have emitted to the atmosphere has been taken up by natural carbon sinks in vegetation, soils and oceans. These natural sinks of CO2 have thus roughly halved the rate at which atmospheric CO2 concentrations have increased, and therefore slowed down global warming.
The historical carbon budget tells us that, of the about 2560 billion tonnes of CO2 that were released into the atmosphere by human activities between the years 1750 and 2019, about aquarter were absorbed by the ocean (causing ocean acidification) and about athird by the land vegetation. About 45% of these emissions remain in the atmosphere (see FAQ 5.1).
Kolla här. Vi som varit med ett tag har hört detta, kanske 100 ggr per år.
Natural carbon sinks (the carbon absorbers, as opposed to "sources," which release carbon) on land and in the ocean have become less effective over time. That is, natural sinks that removed about 60% of annual human-caused CO2 emissions in 1959 now remove about 55% today.
Since 1850, CO2 levels have increased from 280 ppm to around 420 ppm. Scientists understand this increase to be inextricably tied to the human burning of fossil fuels (confirmed by chemical analysis of that rise in CO2). That's a near 50% increase in CO2 levels in just 172 years (about 1 part per million every 23 weeks)! That's over 300 times faster than the natural increase in CO2 levels associated with the warming of Earth's surface coming out of the Ice Age.
https://climate.nasa.gov/faq/55/how-might-earths-atmosphere-land-and-ocean-systems-respond-to-changes-in-carbon-dioxide-over-time/
Om du kan engelska förklaras det hela bra här
https://climate.mit.edu/ask-mit/how-much-carbon-dioxide-does-earth-naturally-absorb
https://www.ipcc.ch/report/ar6/wg1/downloads/faqs/IPCC_AR6_WGI_FAQ_Chapter_05.pdf
For decades, about half of the carbon dioxide (CO2) that human activities have emitted to the atmosphere has been taken up by natural carbon sinks in vegetation, soils and oceans. These natural sinks of CO2 have thus roughly halved the rate at which atmospheric CO2 concentrations have increased, and therefore slowed down global warming.
The historical carbon budget tells us that, of the about 2560 billion tonnes of CO2 that were released into the atmosphere by human activities between the years 1750 and 2019, about aquarter were absorbed by the ocean (causing ocean acidification) and about athird by the land vegetation. About 45% of these emissions remain in the atmosphere (see FAQ 5.1).
Din oförmåga att läsa är du ansvarig för. Upp till 40% av uppvärmningen är resultatet av mätfel.
Varför var det varmare under romerska riket och medeltiden än det är idag?
Citat:
Det är varmare nu.Du kan väl åtminstone börja bifoga referenser/källor till dina felaktigheter?
Citat:
Dina siffror kommer av att man via förhållanden mellan kol-isotoper kan mäta ursprunget på kolet i atmosfären. Och då kan man se att 4% har mänskligt ursprung. Men den siffran beror bara på omsättningen. Så är ganska irrelevant. Jag har en liknelse, som jag använt förut, och därför citerar:
Citat:
Det är ungefär som att du skulle ladda en växlingsautomat som har 280 enkronor, med 140 märkta enkronor av dina egna. Så att det totalt finns 420 enkronor. Sen väntar du ett år, och när du kommer tillbaka finns 423 enkronor, men bara 4st av dina egna. Det betyder inte du kan hävda att du bara tillfört 4st märkta enkronor, att det hade funnits 419kr utan ditt tillskott.
Ja, det kan nog ha varit ungefär lika varmt då som idag.
Citat:
Om du inte ens vet detta, varför sitter du och diskuterar klimatet?
https://est.ufba.br/sites/est.ufba.br/files/kim/medievalwarmperiod.pdf
Skapa ett konto eller logga in för att kommentera
Du måste vara medlem för att kunna kommentera