Published online by Cambridge University Press: 08 April 2016
From a geological point of view, life is an integrated part of the exogenic cycle, a mere elaboration of the physical and chemical processes operating on earth. The origin of life marks the transition from a physical and chemical world into one where physical, chemical, and biological processes form an integrated continuum. Life is at work in a big way, and one may regard the biosphere as a laminar, highly activated global envelope, energized by solar radiation, modeling the terrestrial physiognomy, and catalyzing major geochemical reactions. There can be no doubt that the biota have exerted a profound influence on the development of our planet. The history of life and the earth is one of coevolution (Dubos 1979).
To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. Find out more about saving content to Dropbox.
To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.