Washington Post: Climate-change legislation might be on the Senate’s back burner, but the heat’s still on climate politics. The latest flare-up occurred this week when the Competitive Enterprise Institute, which questions whether human and industrial activity is linked to global warming, released a one-page internal Treasury Department memo from March estimating potential government revenue from a cap-and-trade climate bill at $100 billion to $200 billion a year. The memo assumed that 100 percent of …