Bill Gates has no qualifications, and apparently no education, in climate science. The second sentence in Gates' book: "Greenhouse gases trap heat, causing the average surface temperature of the earth to go up.", is a lie. Heat is not trapped by radiative active gases such as carbon dioxide, CO2. As demonstrated by actual research: ( PDF: https://www.scirp.org/pdf/acs_2020041718295959.pdf )
The idea that heat is trapped by the atmosphere is entirely based on modelling. Models which have never been validated. No attempts to falsify them have ever been tried either. If Gates wanted to add to the sum of human knowledge he should fund empirical work in climate science. He should stop taking doomsday climate modelers seriously.
Greenhouse gas, GHG, models are falsified by real data. Models assume more CO2 makes the atmosphere more opaque to infrared, and that, net, there's less out-going radiation to space. Reality shows: a) the atmosphere has not become more opaque to infrared at higher CO2 levels; and b) when the climate warmed prior to 2016, more OLR was emitted, not less! Greenhouse gas models predict more water vapor in the atmosphere will accelerate warming. c) yet over 4 decades, when the Ganges plain was irrigated (1979 - 2018), its atmospheric relative humidity rose 2%; but average surface temperatures fell by 0.8C. The opposite of what GHG models predict. GHG climate models assume the world works in the opposite sense to reality.