… is from page 79 of former Caltech physics professor and provost – and former Energy Department undersecretary during the Obama administration – Steven Koonin’s superb 2021 book, Unsettled? What Climate Science Tells Us, What It Doesn’t, and Why It Matters:
[A] host of vexing practical problems means that climate model results require at least a pinch, if not a pound, of salt.
DBx: I cannot recommend this book by Koonin highly enough.