From presidents to pundits, public figures writing about current events find themselves relying on “expert opinion” that is itself open to interpretation. So do individual citizens. This short piece by Jonah Goldberg, a political commentator and global warming skeptic, typifies the dilemma. Not a scientist himself, Goldberg is in no position to make authoritative claims about the causes of climate change. But he can — and does — raise questions about how the studies are being reported to the public.

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