By Jo Nova
Here’s a spooky graph of annual hours of sunshine on Krakow, in Poland. Hours of sunshine have been rising since 1980 — much like temperatures. It’s almost like CO2 has been irrelevant all along.
Thanks to Kenneth Richard at NoTricksZone. He writes that cloud cover changes are far more influential than man made CO2 is. The clouds have cleared over the last 46 years with the people of Krakow enjoying 500 more hours of sunlight each year and about 2.3°C of warming.
The research team, Marsz et al., 2025, estimate that radiative forcing by CO2 explained only 3.6% of the variance of temperatures, while changes in sunshine hours explained a whopping 58%.
Look at this graph~!
What if, all around the world, the clouds cleared in the last 40 years which let in more sunlight, and warmed the world, and all the carbon obessessed models were barking up the wrong tree. And the clouds in turn, were controlled by something like phytoplankton releasing cloud seeding particles, magnetic field changes, or jet streams shifting?
Kenneth Richard noticed another paper about Nigeria that reported a similar trend. And another in Brazil that showed that most regions also had less cloud cover now than they used to have.
In most regions of Brazil, sunshine hours are increasing
REFERENCES
Budnukaeku (2026) Temporal Variability of Sunshine Duration and Cloud Cover over Nigeria from 1970 to 2022, Paradigm Academic Press, ISSN 2788-7030 MAR. 2026 VOL.5,NO.
Gava (2026) Sunshine Duration in Brazil From Meteosat (1983–2020): Climatology, Variability and Long- Term Trends, International Journal of Climatology,
Marsz et al (2025) The Role of Increased Sunshine in Shaping Air Temperature rise in Krakow. Quastetiones Geographicaue, 44(3), 2025.