“Nature Version 2.0: Ecological Modernities and Digital Environmentalism” is a survey of artists who reinvent environmentalism for a digital age in a number of ways: by examining how digital technologies can make ecological problems more salient, by reusing and recycling obsolete technologies for new uses, and by exploring how digital spaces and the public domain may require environmental protection much like nature. Re-imagining the relationship between nature and technology, Nature Version 2.0 suggests an ethics of the network and an environmentalism of natural, built and digital spaces.