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.

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.

A girl and a mermaid become best friends as they figure out how to enjoy their favorite things together, but when the shore becomes unsafe Mermaid must leave, promising to return.

When Mrs. Connor's class celebrates Earth Day, Emma decides to start small by recycling, using only what she needs, and picking up trash when she goes for a walk.

Homeschooled by her mechanic-environmentalist father, eleven-year-old Rachel "Ratchet" Vance records her efforts to make friends, save a park, remember her mother, and find her own definition of "normal."

When a baby albino dolphin caught in old fishing netting washes ashore, Paralympics sailing hopeful Felix and English school girl Kara work with veterinarians and specialists to save and reunite the dolphin with her mother, setting off a chain of events that might just save the reef from the environmental effects of proposed dredging.

"On the pretext of making a film for his mother's environmental protection work, Jack wangles an expedition to the Arctic with his friends Amelia and Xander and cousin Caleb. But Xander's investigations into the mysterious backers funding their adventure raises Jack's suspicions. Is the renewable energy investment company really as environmentally responsible as it claims to be? While sledding with dogs, ice fishing, driving snowmobiles and sleeping...

Witches, who for centuries have maintained the climate, are losing their power as the atmosphere becomes more erratic, and all hope for a better future lies with Clara Densmore, an Everwitch whose rare magic is tied to every season. For centuries, witches have maintained the climate, their power from the sun peaking in the season of their birth. Now their control is faltering; the atmosphere has become more erratic. All hope lies with Clara, an...

When Brother's class studies birds, the citizens of Bear Country end up choosing sides in a battle between environmentalists and those who want to cut down the trees in Birder's Woods to build houses.

When Arthur starts talking about his school project involving a Big Green Machine, D.W. imagines a scary contraption that will turn everyone green.