The world is changing. Global populations continue to migrate to urban areas. These ongoing relocations have a profound impact on deeply interconnected environmental systems and also lead to substantial distortions in human biosystems. In a word and to no one's surprise, living in big cities comes with

The world's supply of fossil fuels has been dwindling for a long time. It's been easy to pretend this wasn't happening because there seemed to be an endless quantity of oil and gas reserves. How could we ever run out? All we had to do was drill another well or lay down another pipeline. But now it seems