Scientists says a new map of the ecological footprint of humankind shows 97 percent of the most species-rich places on Earth have been seriously altered. A James Cook University scientist says a new ...

Ecological footprint is a method of gauging humans’ dependence on natural resources by calculating how much of the environment is needed to sustain a particular lifestyle. In other words, it measures ...

The United States is one of the world’s biggest consumers, and U.S. policies can have global environmental effects. As of 2013, the world’s population would need 1.7 Earths to support its demands on ...