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 ...

An unusually intense toxic algae bloom was spotted from space in Nevada’s Pyramid Lake, swirling like paint in a satellite ...

Food pyramids are familiar to all of us. They are visual guides that show us the proportions of foods that we should supposedly eat on a daily basis, in order to stay healthy. Composed of a series of ...