In The Bioneers, Kenny Ausubel argues that the primary task facing humanity .
He explains that we can do so by recasting our existing arenas of applied knowledge such as science, technology, agriculture, economics, politics, and spirituality to observe the basic values of "bioneering": kinship, biodiversity, interdependence, sustainability, community and spiritual connection to nature. One of the most important of these "bioneering" themes would probably be biodiversity. An agreement among bioneers on diversity as a "core condition of life" and that "ecosystems rich with diversity are strong and resilient in the face of environmental crisis and change, whereas ecosystems impoverished of diversity are weak and vulnerable" (The Bioneers, pg. 5). Biodiversity "lies at the heart of evolution" because "without it, organisms cannot successfully adapt to change, the one constant in nature" (The Bioneers, pg. 5). From these reasons, I believe that biodiversity is the most important of the "bioneer" notions, values and codes and will also be the most helpful in restoring the Earth. With this common theme, I am going to compare and contrast essays from The Bioneers and from Wild Earth. The first essay from The Bioneers, which carries the biodiversity theme, is John Todd's "Alternate Greenhouse Effect" (17). The second essay we will be taking a look at is Connie Barlow's "Rewilding for Evolution" in Wild Earth (83). John Todd's "Alternative Greenhouse Effect" is his way of solving the Earth's problem of unsanitary drinking water, through "living machines" and Connie Barlow's "Rewilding for Evolution" is her argument on bringing back extinct species for evolution, in hopes of preserving the Earth. Both of which are centered on the main theme of biodiversity. .
John Todd's main argument is that the absence of species of living things such as "microorganisms, plants, and animals" is what is making the water on the earth unsanitary and is also causing the depletion of sanitary water on the earth.