Blue Earth, Blue Sky takes the reader on a journey with Ari and Nana where we realize that the Earth is hot, using ice cream cones melting as a metaphor for our ice caps melting. The simple joy of exploring and hiking are cut short as you're taken to a magical and new world where we are shown innovations that cut our carbon footprint. It is the hope of Nana and Ari that all of us can join hands and minds (as the cover shows our planet) to innovate and create solutions for a world that is healthy, clean, and happy for all of us to enjoy!