Depends on your definition of a fact: whether it is a truth bearer in itself or if it is an expression of an aspect of the world, in which case it may be false: plato.stanford.edu/entries/facts/#FacFacFac
FWIW, Latour comes to regret at least some of the thrust of his argument
And to be fair, the deadpan denial of climate science is pretty worrisome even if you do have all these qualifications and reservations about the status of a fact in philosophy of science terms
