When Judy Moody gets serious about protecting the environment, her little brother Stink thinks she is overdoing it, but she manages to inspire her third grade class to undertake an award-winning, environment-saving project.

With their father jailed for sinking a river boat, Noah Underwood and his younger sister, Abbey, must gather evidence that the owner of this floating casino is emptying his bilge tanks into the protected waters around their Florida Keys home.

When Nancy, the girl who loves to use fancy words, learns about Earth Day and "being green," her enthusiasm causes problems at home.

The mischievous monkey learns about protecting the environment by planting trees and recycling paper. Includes tips on conserving energy and resources.

After discovering that a green sea turtle was harmed by plastic in the ocean, twin mice Sydney and Simon come up with a creative campaign to increase recycling and reduce the amount of trash created in their home, school, and town.

"The Laskarises' relocation to Wilford Island, Florida, is a big key change for Mimi ... Then her science teacher, Ms. Miller, shows her class a TED Talk by Melati and Isabel Wijsen. At ages twelve and ten, they lobbied to ban single-use plastic bags on their home island of Bali--and won. Their story strikes a chord for Mimi. She's twelve. Could a kid like her make such a big change in a place that she's not yet sure feels like home?"--

The irrepressible Olivia participates in environmentally responsible initiatives with her family, but she must devise a clever solution to the problem of her brother needing a nightlight in order to keep everyone in the family happy.

On Green Day, Cam and her classmates discuss ways to protect the environment, but when money collected for the school's new skylights disappears, Cam uses her photographic memory to solve the mystery.

So far the AstroNuts have failed to find a suitable planet, but NNASA has come up with a new plan: send the four animal astronauts back through time on Earth where they are to contact early homo sapiens and somehow set them on a path to a sustainable future--trouble is, humans seem inferior to many of the other species (especially the wolves), so the AstroNuts come up with a Survival of the Fittest Olympics, hoping that with a little help the humans...

While visiting her grandparents, who run whale-watching tours in Jamaica, Rocket sees first-hand how plastic is harming ocean creatures, and organizes a crew to clean up the local beach.