Yes, the first day of spring saw snow in the Northeastern United States. No, that does not mean global warming is “over,” and the existence of a snowball in February does not disprove the rather uncontroversial scientific consensus that manmade climate change is very real. (Ahem, Senator Inhofe.) Al Gore’s An Inconvenient Truth: The Planetary Emergency of Global Warming and What We Can Do About It, along with its companion Oscar-winning documentary film, is as inconvenient and urgent as ever — nearly a decade later.

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