The die has ALREADY been cast.

Here’s what James Hansen stated in his post, Large Cloud Feedback Confirms High Climate Sensitivity 2025 — May, 2025

Earth’s albedo (or reflectivity) is the portion (percent) of incoming solar radiation that is reflected back to space. As shown in Fig. 1, in the period of precise satellite data (since early 2000), Earth’s albedo has decreased about 0.5%.

We described this change as a BFD (Big Fucking Deal) because it has staggering implications. Solar radiation reaching Earth is about 340 W/m2, averaged over Earth’s surface, so the 0.5% albedo decrease is a 1.7 W/m increase of absorbed solar energy.

A +1.7 W/m2 increase of absorbed solar energy is huge. If it were a climate forcing, it would be equivalent to a CO2 increase of +138 ppm. — James Hansen

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