Den stora tråden om global uppvärmning/växthuseffekten

Därför är det mer relevant att du ställer frågan, varför skyller man på koldioxidutsläpp att det skulle vara förmodat 0,8 grader varmare idag än för 100 år sedan.
Speciellt när mätningarna görs nära bebyggelse (bebyggelse absorberar värme)

Har du ens läst om klimatforskningen eller sitter du bara och försöker pusha agendan utan att ha en aning vad du svammlar om egentligen?

Using both observational data and climate model simulations, the researchers showed that there was no consistent evidence for decadal or longer-term internal oscillatory signals that could be differentiated from climatic noise — random year to year variation. The only verifiable oscillation is the well-known El Niño/Southern Oscillation (ENSO).

"A distinct — 40 to 50 year timescale — spectral peak that appears in global surface temperature observations appears to reflect the response of the climate system to a combination of anthropogenic and natural forcing rather than any intrinsic internal oscillation," the researchers report today (Jan. 3) in Nature Communications.

....

"We found a tendency in the control models for oscillations in the three to seven year ENSO band," said Mann. "However, we found no other signals, no Pacific or Atlantic climate variability on decadal or longer timescales that could be characterized as a true oscillation. Such variability was essentially indistinguishable from random noise."

... the researchers showed that the apparent 40 to 50 year spectral peak sometimes associated with the AMO is actually* an artifact of the slowdown in warming from the 1950s to 1970s. This warming was due to the buildup of sulfur "aerosol" pollutants that cool the Earth's surface. The passage of the Clean Air Acts in the 1970s removed the cooling effect and greenhouse gas warming increasingly dominated. The slowdown and subsequent acceleration of warming masquerades as an apparent "oscillation."

"Our study provides another line of evidence that purported decadal and longer timescale internal oscillation in climate that have been identified through analysis of observational data are in fact mostly a result of external influences like greenhouse gas and aerosol emissions by humans," said study co-author Byron A. Steinman, associate professor of earth and environmental science at the University of Minnesota Duluth.