@article{cai2015environmental,
  title={Environmental tipping points significantly affect the cost- benefit assessment of climate policies},
  author={Cai, Yongyang and Judd, Kenneth L and Lenton, Timothy M and Lontzek, Thomas S and Narita, Daiju},
  journal={Proceedings of the National Academy of Sciences},
  volume={112},
  number={15},
  pages={4606--4611},
  year={2015},
  publisher={National Acad Sciences}
}