We are at an inflection point in the history of Earth, a period of rapid and dramatic change to both the planet and the life-forms that inhabit it. The climate is changing so rapidly that it is likely to make some cities uninhabitable and large agricultural areas barren in the next one hundred years. Species are going extinct at such a rapid rate that some scientists are calling it the sixth great extinction event in Earth’s history. Human intelligence is the cause of these rapid changes.
