I recall watching Lovelock on an episode of NOVA some 25 years ago in which he explained his Gaia theory. Apparently it has since been partially discredited, but it is likely that that is because the Gaia theory posited that the Earth was self regulating. This meant that the required linear or geometric changes in global temperature for Global Warming to occur could not happen, as such changes would automatically be countered. The Gaia theory was incompatible with global warming. For example: an increase of CO2 increases the amount of plant biomass which lowers CO2. Although he drifted in the interim, it appears that at 90 some years old he felt his legacy might be in jeopardy if he were to remain tied to the extremist Green Movement.
It takes a brave man to embrace science against the herd.
As he [Lovelock] puts it, “so-called ‘sustainable development’ … is meaningless drivel … We rushed into renewable energy without any thought. The schemes are largely hopelessly inefficient and unpleasant. I personally can’t stand windmills at any price.”
There is much more at the link.