… is from a blurb contributed by William W. Hogan (who is Research Professor of Global Energy Policy at Harvard’s Kennedy School) to Steven Koonin’s 2021 book, Unsettled? What Climate Science Tells Us, What It Doesn’t, and Why It Matters:
The science of climate is neither settled nor sufficient to dictate policy.
DBx: To be clear, the science does seem settled (insofar as science can ever legitimately be said to be ‘settled’) that the earth is warming and that human industrial activity contributes to this warming. Yet many important questions remain unsettled. Among these unsettled questions are (1) Just how much of this warming is contributed by human activity? (2) What will be the actual consequences, for humans and for the earth, of this warming? and (3) What should we humans do about this warming?