So, what is the Sixth Extinction? When is it coming and what is its cause? It is happening now, and we, the human race are its cause explains Richard Leakey. This phenomenon Leakey argues, is easily comparable with the big five biological crisis' of geological history, except this one is not being caused by global temperature change, regression of sea level, or asteroid impact. It is being caused by one of Earth's inhabitants. According to …showed first 75 words of 1171 total…

…showed last 75 words of 1171 total…the complexities of the natural world including our interdependence with in. In sum, Leakey made the point that while the daily cutting of tropical forests and encroachment on wild habitats is a less dramatic process than an asteroid impact, the end effect is the same. In pursuing our own objectives, we operate as though the natural world can withstand our actions without assuming any harm. As Leakey would argue, we do so at our peril.