@article{moran2018carbon,
  title = {Carbon footprints of 13 000 cities}
  author = {Moran, Daniel and Kanemoto, Keiichiro and Jiborn, Magnus and Wood, Richard and Többen, Johannes and Seto, Karen C},
  journal = {Environmental Research Letters},
  doi = {10.1088/1748-9326/aac72a},
  year = {2018}
}