Summary of Chapter 12 – “Who Is the Earth?”

by | Aug 17, 2022 | Book

The new cooperatively formed eukaryotic cells began themselves to cooperate fairly quickly. Evidence of chains of algae cells goes back almost to the beginnings of these cells themselves. The road to the next cooperative organism ends in multi-cellular creatures...

Summary of Chapter 11 – “Who Is the Earth?”

by | Aug 17, 2022 | Book

About 1.2 billion years ago a new kind of cell arose. From the work of Lynn Margulis, it is now accepted that this came about through symbiotic cooperation between several kinds of bacteria. A kind of bacteria came to produce the cellular energy exchange medium, ATP. ...

Summary of Chapter 10 – “Who Is the Earth?”

by | Aug 17, 2022 | Book

We pause on the path of the unfolding of life and take a step back to take in the whole, both as it has been seen so far, and how it will develop. Several characteristics of the journey can be seen from this point of view. Life is a journey in discrete stages. The...

Summary of Chapter 9 – “Who Is the Earth?”

by | Aug 17, 2022 | Book

  After its fiery Hadean beginning, Earth seems to have spent up to a billion years covered completely in a world ocean. Volcanoes and small islands probably broke through the surface, but life’s first few 100 million years were probably underwater. Simple...

Summary of Chapter 8 – “Who Is the Earth?”

by | Aug 17, 2022 | Book

In the 1990s James Lovelock proposed the Gaia hypothesis. This proposes that the whole of life on Earth acts as a single system, maintaining both the composition of the atmosphere and the temperature at the surface. Both conditions seem to be  maintained by negative...