Making it up out of thin air. This section makes no sense at all:
"the socio-economic inefficiencies caused by climate panic. For example, if drastic climate action harms economic upliftment, total climate damages may actually increase with more action because poor communities (where almost all future population growth will be concentrated) are subject to far greater climate vulnerability than rich communities."
Translation: if you don't do as the oil wealthy say, they'll lay off a ton of people and raise gas prices like we did last year to cause inflation.
He uses a lot of undefined and loaded phrases that sound Intellectual(TM), like "socio-economic inefficiencies". What does that phrase even mean? So he uses polysyllabic word salad, in contrast to words like "panic". Boebert with a high-school diploma (maybe freshman in college trying to slip a shabby composition through).
Meaningless, vague phrases that sound "Intellectual(tm)" because they have more than 2 syllables:
unwarranted climate panic
unequal food distribution
socio-economic inefficiencies
drastic climate action
economic upliftment
total climate damages
climate vulnerability
Some of this may be machine translation artifact; I don't think English is his first language.
You have to beware of PR personnel who write like engineers or scientists, or write like right-wingers quoting MLK, or write like "researchers" defending tobacco. Cloete seems to do all of that. Try a quick search on his activities.
To address your question about biodiversity: many actual journal-published scientists ( not self-described dilettante "researchers" ) are of the opinion that we are in the early or mid stages of the Sixth Mass Extinction. Like the dinosaur-killer asteroid, but stretched out over a century or two, not one big event, a large percentage of species will go extinct.
From wiki: "most conservation biologists now believe that human activity has either produced a period of mass extinction, or is on the cusp of doing so."
https://en.wikipedia.org/wiki/Holocene_extinction
The boat is rocking.