The Climate Imperative Foundation is the newest and richest anti-hydrocarbon, anti-natural gas group you’ve never heard of. How rich is Climate Imperative? According to the latest report from Guidestar, the group took in $221 million in its first full year of operation. (Guidestar calls the income “gross receipts.”) That means that Climate Imperative, which is less than three years old, is already taking in more cash than the Sierra Club, which bills itself as the “nation’s largest and most influential grassroots environmental organization.” According to Guidestar, the Sierra Club collected $180 million in its latest reporting year. Climate Imperative is...