Paul Gilding wrote a great book in 2011 where he envisioned that by 2018 we'd hit a societal tipping point that would motivate dramatic efforts to tackle climate change. It may have been the first serious look at the ideas of an "inevitable policy response"  and "positive tipping points."  The book includes a detailed "1 Degree War Plan" that lays out what would be required to stop global warming in its tracks.