Ashok Karra has posted a review of Biogea on his blog titled Environmental Philosophy and the Question of Origins. The themes of his engagement and critque will be of interest to Serres readers through not unfamiliar. The many images and metaphors that Serres is famous for are often difficult and confusing when you've grown accustomed to other ways of writing and thinking. Serres is not everyone's cup of tea, as they say. I think you will, however, find it a thoughtful discussion and worth reading.