Arctic Rising, book 1
Tobias S. Buckell2012

Global warming has transformed the Earth, and it's about to get even hotter. The Arctic Ice Cap has all but melted, and the international community is racing desperately to claim the massive amounts of oil beneath the newly accessible ocean.

Anika Duncan is an airship pilot for the underfunded United Nations Polar Guard. Soon Anika finds herself caught up in a plot by a cabal of military agencies and corporations, which goes further than she ever imagined.