Includes bibliographical references and index.

Introduction : environment as experiment in sensing technology -- Sensing an experimental forest : processing environments and distributing relations -- From moss cam to spill cam : techno-geographies of experience -- Animals as sensors : mobile organisms and the problem of milieus -- Sensing climate change and expressing environmental citizenship -- Sensing oceans and geo-speculating with a garbage patch -- Sensing air and creaturing data -- Citizen sensing in the smart and sustainable city : from environments to environmentality -- Engaging the idiot in participatory digital urbanism -- Digital infrastructures of withness : constructing a speculative city -- Conclusion : planetary computerization, revisited.