She’s a Witch! Burn ‘Er!

David Appell notes more evidence for Appell’s Theorem: As Oil Prices Rise, Nations Revive Coal Mining By MARTIN FACKLER BIBAI, Japan — These rugged green mountains, once home to one of Asia’s most productive coal regions, are littered with abandoned mines and decaying towns — backwaters of an economy of bullet trains and hybrid cars.

Orszag on the “Safety Valve”

CBO’s Peter Orszag on the economics of putting a safety valve in a cap-and-trade bill: One option for allowing firms flexibility in determining when to reduce emissions while also achieving compliance with a cumulative emissions target would be through setting both a ceiling—typically referred to as a safety valve—and a floor on the allowance prices …

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