I’ll be 80 this month. At this age I can look back and pinpoint the various times when scientific theories moved from speculation to established fact. For example, I was in the anthropology department at Georgia State when plate tectonics was formally accepted by the world’s leading geophysicists.
King: Treating Earth as a living being
![](https://gainesvilletimes.cdn-anvilcms.net/media/images/2017/04/28/images/Default_Image-01.max-1200x675.png)
![Placeholder Image](https://gainesvilletimes.cdn-anvilcms.net/media/images/2017/04/28/images/Default_Image-01.max-752x423.png)