The next 50 years will see more use of market-based tools for environmental protection. Regulatory authorities everywhere will require polluters to report emissions. Authority will leak away from national governments; some will be devolved to lower levels of government, but some will be lost to...

One of the most hotly contested of all energy policy issues involves Corporate Average Fuel Economy (or CAFE) standards for new cars and light-duty trucks. Tighter standards would reduce gasoline consumption, and hence both greenhouse gas emissions as well as this country's vulnerability to oil...