“Together we dig in, for all we’re worth,” so says award-winning author and journalist Barbara Kingsolver in this month’s National Geographic’s special water issue, as she describes how the world’s water crisis does not discriminate between Australian farmers and migratory salmon.

“Fresh Water” takes a poetic and utterly sober look at the world’s diminishing freshwater supply. Even though the amount of water on the earth hasn’t changed since the age of the dinosaurs, variables such as drought, population growth and climate change now threaten our abundance and access to that water.

Kingsolver carries the reader on a journey from damp Appalachia to irrigation-happy Arizona to the Piura Desert, one of the most arid regions on the planet, reminding us that if we have access to ample fresh water today (nevermind indoor plumbing) we are one of the fortunate few.