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.

With help from her Grandma Barb, Marty builds a habitat for worms in her school cafeteria as part of the Save the Earth Project.

With a letter to President Franklin Roosevelt and unexpected help from her Hallelujah-spouting cousin, Henry James, Elsie Mae tries to prevent a company from building a canal through the Okefenokee Swamp.

During a field trip in the local woods, Roni and Brian find the local archaeology professor, Andrew Dart, knocked unconscious in a cave, which leads them to investigate a land development scheme.

"When twelve-year-old Mary Kate joins a special science pilot program focused on climate change, she and her friends come up with big plans to bring lasting change to their community." --

New third grade teacher Mr. Granite has so many strange ideas about how to make Ella Mentary School environmentally friendly that the students are sure he must be an alien.

"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?"--

When he has a dream about a future Earth devastated by pollution, Walter begins to understand the importance of taking care of the environment.

"What if you could communicate with a whale? Rio has been sent to live with a grandmother he barely knows in California, while his mum is in hospital back home. Alone and adrift, the only thing that makes him smile is joining his new friend Marina on her dad's whale watching trips. That is until an incredible encounter with White Beak, a gentle giant of the sea changes everything. But when White Beak goes missing, Rio must set out on a desperate quest...

"Told in verse, seventeen-year-old Eliza, an environmental activist, is navigating the after-effects of a hurricane that devastated her coastal town while falling for Milo, a rich tourist who is at the center of a redevelopment that could put her community in danger--again."--