American War a dystopic novel

I read this in May of 2017
  "American War"- set in a future of Global Warming and post American
Civil War II.  No Florida and the Southern Coast is depleted.
The Big Bay* is in Central California.  I.e. the Central Valley
and San Joaquin Valley are flooded.  Only the high points of
the San Francisco Bay Area remain above water.
A Free Southern State exists with a quarantine zone in South
Carolina.  Florida is gone. New Orleans is gone.
A Mexican Protectorate extends past San Francisco and takes
up the Southern-Most tier of Western states.
The narrator of the tale of the female protagonist lives in
New Anchorage, Alaska where they might see frost on the
windows in  January, but it never snows.  Alaska is a Neutral
State
`    The author is one Omar El Akkad.
The ACW II takes place from 2074-2095 caused by the
Southern states unwillingness to abide by the ban on
Fossil Fuels finally enacted.  Florida is gone.
A girl's father is murdered and a thirst for revenge
grows within her as the War goes on.  Horrendous acts
are done on each side and the protagonist does the
final horrendous act of the War, which kills the last
of her relatives but not intentionally.
It could be sub-titled Fall of the American Empire!
bliss
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