Overview For decades, oil prices have influenced the outlook for alternatives to oil and policies that support those alternatives. Expensive oil makes substitutes more appealing; cheap oil makes t…

Overview Deforestation is a major man-made source of greenhouse gas emissions, and is especially significant in countries with large tropical forests, including Brazil and Indonesia as well as cou…

Overview How much Iranian nuclear capability is too much? The simplest answer is that any amount is unacceptable. But it is far from clear that zero enrichment is a realistic goal. To help illumin…

Overview How would the Arab states of the Middle East react if Iran were to acquire a nuclear weapons capability? In this Working Paper, sponsored by the Carnegie Corporation of New York, Michael …

Overview Corporate average fuel economy (CAFE) standards, which require automakers to achieve government-mandated targets for the efficiency of the vehicles they sell each year, can reduce U.S. re…