Most initiatives to slow global warming involve reducing carbon dioxide emissions. Little attention has been given to reducing emissions of the light-absorbing particles known as "black carbon" or the gases that form ozone--even though doing so would be easier and cheaper and have a more immediate effect

The notion of political Islam may be a more complicated bargain than many realize, and Muslims who seek to shape the world according to their religious values often confront an obdurate reality

Religion and modernity were never expected to go hand in hand, and for centuries they coexisted uncomfortably. But thanks to the entrepreneurial model of American evangelicals, argue two journalists at The Economist, God is back