Facts and values: On science, ethics and climate

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As someone who has greatly admired Andy Revkin’s Dot Earth blog at the New York Times, I very much enjoyed reading the story about his life’s journey in the world of journalism and science communication that was recently published in Issues in Science and Technology. However, I took issue with one of the claims he makes about science.

Revkin claims, as if it were self-evident, that a major hurdle in our response to climate change is that “science doesn’t tell you what to do”. He then invokes the “is-ought” problem coined by the 18th-century philosopher David Hume which states that no description about the way the world is (facts) can tell us what we ought to do (values). I would argue, however, that this separation between facts and values is a myth. Values are reducible to specific kinds of facts: facts related to the experience and well-being of conscious creatures. There are, in fact, scientific truths to be known about human values (a view defended most notably by the philosopher and neuroscientist Sam Harris in his book The Moral Landscape: How Science Can Determine Human Values). Continue reading