Text version of Bruno Latour’s Gifford Lectures – Facing Gaia.
You can watch them here: http://knowledge-ecology.com/2013/03/05/bruno-latours-gifford-lectures-1-6/
Bruno Latour has made the text of his Gifford lectures available as a pdf on his site –Facing Gaia: Six lectures on the political theology of nature. Thanks to Owain Jones for the link (it seems this may have been available for a while; but news to me). The lectures were all video-recorded and I linked to them a while back – the links are all at the Edinburgh site.