Physicist Steven Koonin, a former BP chief scientist and Obama administration energy official,  seeks to downplay climate change risk in his new book, “Unsettled: What Climate Science Tells Us, What it Doesn’t and Why it Matters.” His critics say he often draws general conclusions from specific slices of data or uncertainties (sometimes signaled by key … Continue reading Dissecting ‘Unsettled,’ a Skeptical Physicist’s Book About Climate Science