Discussion about this post

User's avatar
Jaime Jessop's avatar

It's actually very complicated: earth's solar radiation budget depends on where clouds are (tropics or mid-latitudes), what they are (thin, high clouds or dense, low clouds) and in which season they appear (or fail to appear, as the case may be). What drives variability in global and regional cloud cover is also very complicated, dependent upon changing global and regional circulation patterns linked to the upper atmosphere jet streams, the Brewer-Dobson global circulation governing the position of the intertropical convergence zone (ITCZ) and ozone chemical reactions in the stratosphere.

The thing to note though is that direct solar radiative forcing of the climate via variability in cloud cover is at least an order of magnitude greater than CO2 greenhouse gas forcing. Over short periods (of the order of decades and years), alleged 'man-made climate change' can easily be lost in the noise.

I might also add that Hunga Tonga threw our climate scientist 'experts' a genuine googly which they are still trying to (unsuccessfully) figure out!

Expand full comment
Douglas Brodie's avatar

Of course they are quite right. Here is a similar study by Professor Ole Humlum covering the global warming period of the 1980s and 90s: https://notalotofpeopleknowthat.wordpress.com/2024/04/29/global-temperatures-and-reduced-cloud-cover/.

To borrow the misused phrase of arch climate alarmist Al Gore, this was one of many “inconvenient truths” I used in my recent debunking of the climate change hoax: https://metatron.substack.com/p/debunking-the-climate-change-hoax.

Expand full comment
138 more comments...

No posts