@article{Crawford
  title = {Arctic open-water periods are projected to lengthen dramatically by 2100},
  author = {
Crawford, Alex
and Stroeve, Julienne
and Smith, Abigail
and Jahn, Alexandra
},
  url = {https://www.nature.com/articles/s43247-021-00183-x},
  journal = {Other},
  volume = {2},
}
,
@article{Gillett
  title = {Constraining human contributions to observed warming since the pre-industrial period},
  author = {
Gillett, Nathan P.
and Kirchmeier-Young, Megan
and Ribes, Aurélien
and Shiogama, Hideo
and Hegerl, Gabriele C.
and Knutti, Reto
and Gastineau, Guillaume
and John, Jasmin G.
and Li, Lijuan
and Nazarenko, Larissa
and Rosenbloom, Nan
and Seland, Øyvind
and Wu, Tongwen
and Yukimoto, Seiji
and Ziehn, Tilo
},
  url = {https://www.nature.com/articles/s41558-020-00965-9},
  journal = {Nature Climate Change},
  volume = {11},
  pages = {207-212},
}
,